pigment violet 23 synthesis

VUOS R&D company 1233 also exhibits excellent fastness to light and weathering in most applications, affected only slightly in reductions with titanium dioxide. We warmly welcome you to buy high quality pigment violet 23 at low price from our factory. the Color of Art Pigment Database: Pigment Violet, is a complete artist's reference on violet and purple pigments used in making paint. Preparation. Dyes at Aakar Dyes & Chemicals - Welcome to Aakar Dyes ... Pigment violet 23 - Wikipedia : 51319 CAS NO. Known as carbazole violet, Pigment Violet 23 is a dioxazine violet pigment of blue tone. PDF Synthesis of coloured ceramic pigments by using chromite ... . 0.75g of Poly (2-ethyl-2-oxazoline) (Aquazol) 50 kDa. Reg. Pigment Violet 23: CAS Registry Number: Chemical Abstracts Service Registry Number is a unique identifier for a chemical and its synonyms. Pigment Violet 23 has been known for over 50 years and in the course of this time has acquired a very great importance because of its outstanding properties. : 228-767-9 Chemical Group: Dioxazine. Order) : 6358-30-1 Eu No. S D International is committed to customer fulfillment by delivering the best quality Dyes, Pigments . : 6358-30-1 EINECS NO. The chemical structure, the crystalline structure or the synthesis of a pigment determine the shape of particles. US4345074A - Process for the manufacture of a violet ... Pigment Violet 37. 4 Ounces Pigment Violet-23, Carbazole Dioxazine . c.i. PDF yours do. - | Brenntag 160° C -280° C (As per application) Firstly, 2.38 g (20 mmol) of CoCO 3 was dissolved in 40 ml of 0.5 M H 3 PO 4 at 65 °C. An irreversible color change from violet to white is observed after exposure of the synthesized manganese violet pigment at 400 °C for 30 min. Carbazole Violet, Pigment Violet 23, is a complex polynuclear pigment that is an intense red shade blue of high tint strength. PDF ALPANIL INDUSTRIES - Meghmani Pigment Violet 23; CAS Number: 215247-95-3; Linear Formula: C34H22Cl2N4O2; find Matrix Scientific-MATH8735F2C5 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich PIGMENT VIOLET-23 - Meghmani Group Pigment Powders 2 . : 228-767-9 Molecular Weight:589.50 Chemical Formula: C 34 H 22 Cl 2 N 4 O 2 Structural Formula : Physical and Chemical properties: Foreign relative brand: Cartaren Violet BLN (CLAR) Aritint Violet 23(ARI) Epsilon Violet LB-6T001 (SUM) Fastogen Super VioletRN-F (DIC) Cromophtal Violet GT (CIBA) Aquadisperse (AVE-0580) (SNA) Duralith Violet B (TEP) General Aspects 2.2. Color Index: Pigment Violet 23 CAS RN NO. Number: pigment violet 23 CAS Number: 6358-30-1 EU Number: 228-767-9 Chemical Family: Dioxaxine. Pigment Lake Red SCLL. About products and suppliers: Alibaba.com offers 1603 carbazole violet 23 pigment products. The merchandise subject to this antidumping duty order is carbazole violet pigment 23 (CVP-23) identified as Color Index No. pigment violet 23. ecotint violet a5-v 9.00 hostatint violet rl 531 vp 6014 255.00 microsol violet b 3.50 pv fast violet blp 20.00 kg. Cobalt violet - ColourLex Product Name: PIGMENT VIOLET 23 (PV23) Countertype: CLARIANT,BASF,CIBA;Violet BLN,Violet GT C.I.NO. *** Wet press-cake form (Pigment Violet 23) We can supply Permanent violet RL (Pigment Violet 23) with press-cake form according to customers requirement. Introduction 2. 228-767-9, CAS RN . Quantity . Pigment Violet 23 (C.I. For many years, the structure was assigned, incorrectly, as having a "linear structure" (EC no. Pigment Violet 37. The aim of this work is not only the synthesis of black ceramic pigment with spinel structure using local and inexpensive minerals . View History Pigment Violet 23. Molecular Weight: 589.48. Finally, water is added to the hot reaction mixture and it is boiled for a further 4 hours. Pigment Violet 23 215247-95-3 product and the products related with China (Mainland) C.I. S D International is committed to customer fulfillment by delivering the best quality Dyes, Pigments . New Window. This is attributed to the oxidation of ammonia to hydroxylamine, which then decomposes to nitrogen and water, or alternatively to the direct oxidation of ammonia to nitrogen. Jump to navigation Jump to search. The pigment possesses excellent fade resistance properties and only its relatively high cost and hard nature limit its more widespread use. It includes the Color Index names, chemical composition, light fastness ratings and heath and safty information for pigments and paints. Reg. The pigment can be prepared by heating a mixture of manganese oxide, phosphoric acid, and ammonium dihydrogen phosphate at 120 °C for 4 hours and subsequently at 300 °C for a further 1 hour. Abstract The article contains sections titled: 1. The present invention relates, therefore, to a process for the manufacture of the organic pigment of the formula I, C.I. About Pigment Violet 23. 3.0 mL of ethanol. Consumer Product Information Database (CPID) 8.2 U.S. Production. 51319 Color Index Pigment Violet 23 CAS No. $27.00 . File; File history; File usage on Commons; File usage on other wikis; Size of this PNG preview of this SVG file: 800 × 541 pixels. MUTTENZ, Switzerland - Pigment Violet 23 (PV 23) has now been around for more than 55 years. Structure, properties, spectra, suppliers and links for: PIGMENT VIOLET 23, 6358-30-1. Pigment Violet 23 affords bluish violet shade which unique from other violet pigments, and entirely fast to many organic solvents. When pigment violet 23, one of the mostly-insoluble aryl halides, was subjected to the reaction with an aryl boron nucleophile at 120 degrees C in a ball mill in the presence of the palladium . Cobalt violet is either cobalt phosphate Co3(PO4)2 either anhydrous or crystallized with different numbers of water molecules. : 215247-95-3 EINECS NO. The preparation of pigment preparations based on C.I. Trade Name:Permanent Violet BL C.I. Suppliers and manufactures - with identical CAS number as Pigment Violet 23 For the following products supplier are listed below: Pigment Violet 23 (C.I. Moisture Content. Chemical Type Carbazole Violet Constitution No. Conductivity. Novoprime® Pigment Violet 23 has high coloring strength, extraordinary light and weather resistance even in reduced shade. Nos. EPA Registry Name: C.I. Pigment violet 23 is one of pigments belonging to Dioxazine class. Information on 1 consumer products that contain Pigment Violet 23 in the following categories is provided: • Inside the Home. Physical and Technical Properties 2.1. . 6358-30-1 - CGLVZFOCZLHKOH-UHFFFAOYSA-N - Pigment Violet 23 - Similar structures search, synonyms, formulas, resource links, and other chemical information. Dispersibility 2.2.1. No. Keywords: Pigment violet 23 Pigment Violet 23 - DCC 3123 Chemical Class Carbazole CAS# - 6358-30-1 Product Overview DCC 3123- offers excellent gloss, transparency and rheology for P/A and N/C solvent inks. Find here for Pigment Violet 23, Navpad Pigments is global supplier and manufacturer for pigment violet products, get high quality Pigment violet 23 with affordable price list. 25 Kilograms (Min. Pakage: Foreign relative brand: Cartaren Violet BLN (CLAR) Aritint Violet 23(ARI) Epsilon Violet LB-6T001 (SUM) Fastogen Super VioletRN-F (DIC) Cromophtal Violet GT (CIBA) Aquadisperse (AVE-0580) (SNA) Duralith Violet B (TEP) Tianjin Norland Biotech Co., Ltd. is a seller of 4-Amino-3-nitrobenzophenone. < 1.0 %. Heat Stability. Description: 1233 is a high performance pigment that is a bluish violet color with high tint strength. the Color of Art Pigment Database: Pigment Violet, is a complete artist's reference on violet and purple pigments used in making paint. Polycyclic-type pigments containing dioxazine violet (pigment violet (PV) 23, PV37) and diketopyrrolopyrrole (PR254, PR255) were found to contain PCB-56, PCB-77, PCB-40, PCB-5, and PCB-12, and PCB-6, PCB-13, and PCB-15, respectively, as major congeners. 919 U.S.C. Description: 1233 is a high performance pigment that is a bluish violet color with high tint strength. 51319).We are integrating R&D, manufactruring and marketing into the whole, with the guarantee of effective quality . S D International offers Pigment Violet 23 well known for using superior purity chemicals to meet International Industry standards. From Wikimedia Commons, the free media repository. Tianjin Norland Biotech Co., Ltd. is supplier for Pigment Violet 23 (C.I. (a) Identity. Pigment Violet 23 PV 23 is an irreplaceable chemistry for getting violet coloration in pigment application. 6358-30-1. Crude permanent violet can also be used as intermediate of direct sunshine-resistance blue 108. Pigment violet 23; CAS Number: 6358-30-1; Linear Formula: C34H22Cl2N4O2; find Combi-Blocks, Inc.-COMH93D5C213 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich English: Chemical Structure of C.I. % of Pigment Violet 23 by-products (1), (2) and (3). 6358-30-1 Raw Materials for Downstream Products . Tianjin Norland Biotech Co.,Ltd is a high-tech enterprise focusing on fine chemical & nutraceutical raw materials business. C.I. Its beginnings go back to 1928, when a patent was filed for the pigment after researchers at the Hoechst company in Germany first undertook the multistage synthesis based on carbazole, an ingredient of coaltar, and chloranile. Ferro is a global supplier of Dioxazine Violet pigments that provide a bluish violet shade, a color not obtainable by other pigments. There is no information about former or incorrectly used identifiers. : 228-767-9 C.I.No. 6358-30-1 from AK Scientific, in San Francisco, California For free sample, contact us now. Molecular Formula: C34H22Cl2N4O2, MW: 589.47 1.5 grams of cobalt violet pigment. Carbazole o-dichlorobenzene Calcium chloride P-chloranil Nitric acid Bromoethane Hydrochloric acid . Bulk Density. Dioxazine compounds are used in the synthesis of valuable dyes and pigments. Pigment Violet 23 6358-30-1 3. 51319 and Chemical Abstract No. H 2 O) by a simple co-precipitation method. Colour Index No. Customer synthesis Intermediates; Power engineering. 23.50%. A process for improving the heat stability of Pigment Violet 23 by conditioning crude Pigment Violet 23 in the presence of about 1 to 10 wt. 43119 (July 21, 2015). The extremely high color strength of PV23 makes it a suitable pigment as a shading component. Good service and cheap products are available. 701‐TA‐437 and 731‐TA‐1060- In metallic paints, Pigment Violet 23 is more used because of its transparency and bluer shade. 246-0018 Pigment Violet 23 Indofast Violet 23 249-LM84 Pigment Blue 15:3 Sunfast Blue 15:3 249-8450 Pigment Blue 15:4 Sunfast Blue 15:4 264-3064 Pigment Green 7 SpectraPAC Green7 247-3007 Pigment Black 7 Sunfast Black 7 wherever you are in the world, our team will help you to find The resulting product is then washed and dried (1). ( 1) Marie-Claude Corbeil, Jean-Pierre . Product Name： Pigment Violet 23 CAS ： 6358-30-1 Tel： +86-571-88383188 86970388 49-211-550203-21 Email： sales@dragon-chem.com. 7.0 to 8.0. The primary particles of a pigment may be nodular, spherical, prismatic, acicular or lamellar. Quantity . Excellent physical and chemical stability and good heat resistance enable it widely applied in almost all . Help. 51319) is a Dioxazine or Carbazole Violet suitable for inks, paints and many coatings. Our Alpafast violet pigment exhibits excellent solvent fastness, light fastness and heat fastness properties, making it suitable for inks, paints and coatings, , followed by textile printing, plastics and other special applications. 51319 Color Index Pigment Violet 23 CAS No. 6358-30-1 A wide variety of carbazole violet 23 pigment options are available to you, such as coating pigment, cosmetic pigment and ink pigments.You can also choose from organic pigment, carbazole violet 23 pigment, There are 5 carbazole violet 23 pigment suppliers, mainly located in Asia. Buy Pigment Violet 23 (CAS 6358-30-1), a biochemical for proteomics research, from Santa Cruz. Application and Advantage. The list of suitable systems ranges from coatings and paints to plastics, printing inks, and other special purpose medias. Pigment Violet 23 CHEMICAL DESCRIPTION Carbazole Violet Pigment CONSITUTION NUMBER C.I.51319 CAS NUMBER 6358-30-1 CHEMICAL FAMILY Dioxazine Compound CHEMCIAL TYPE Organic MOLECULAR FORMULA Pigment C 34 H22 Cl 2N4O2 2. $17.00. Step 1: Grind the synthesized pigment into a homogenous substance with a mortar and pestle then divide the pigment into 3 samples each weighing 0.25g. Inorganic pigment synthesis - Cobalt violet. Customer synthesis Intermediates; Power engineering. Pigment Rubine Toner SC. § 1677(4)(A). Synthesis of SnO 2/Cr pigments doped by praseodymium prepared by different methods and their pigmentary properties Ceramics - Silikáty 60 (3) 234-242 (2016) 235 Cr (III) oxide clusters, the next one of a small amount of CrO 2 nanoparticles. No. CAS registration number: 12237-62-6. The violet colour of the pigment 6358-30-1: Chemical Class: Organic pigment Properties: Dischargeability 5 Fastness: standard depth: 1/3: 1/1: Light Xenotest 7 7-8 standard depth: 1/1: Washing 95°C . Deutsch: Strukturformel von C.I. GENERIC NAME C.I. 51319) 9,19-Dichloro-5,15-diethyl-5,15-dihydro-diindolo[2,3-c:2',3'-n]triphenodioxazine Permanent Violet RL Permant violet VR Permant violet VB Permant violet VRS Pigment Violet 23; Pigment Violet 23 - Manufacturers, Factory, Suppliers from China We have a highly efficient team to deal with inquiries from customers. (b) Uses and restrictions. The as-synthesized manganese violet pigment consists of pure α-MnNH4P2O7 phase. pigment violet 23 Trade Name is Permanent Violet RL,pigment violet 23 CAS Number is 6358-30-1 and C.I. COMPOSITION / DATA ON COMPONENTS SUBSTANCE CAS NO. CAS numbers identify the chemical, but not its concentration or specific mixture. Date: 19 March 2010: Source: Own work: Author: Hardcoreraveman: SVG development The source code of this SVG is valid. Other resolutions: 320 × 217 pixels | 640 × 433 pixels | | | | . VUOS R&D company S D International offers Pigment Violet 23 well known for using superior purity chemicals to meet International Industry standards. FOB Price:37 USD/Kilogram Min.Order:100 Kilogram Supply Ability:3000 Kilogram/Year Appearance:Deep bluish violet powder Purity:99%以上 Packaging:25KG fibre drum Usage:Plastics、Ink&industries Brand:China Description:Pigment violet 23 Novoprime Pigment violet 23 is a dioxazine pigment of blue tone.It has high coloring strength and . Number: pigment violet 23 CAS Number: 6358-30-1 EU Number: 228-767-9 Chemical Family: Dioxaxine. Its synthesis is effected by reacting chloranil (tetrachloro-p-benzoquinone) with two mols of 3-amino-9-ethylcarbazole to give 2,5-di-(9-ethylcarbazol-3-ylamino)-3,6-dichloro-1,4 . File:CI Pigment Violet 23 Synthesis.svg. < 250 MiSi/cm. 45 gms/100 cc. Pigment Violet 23 by the process claimed has proven to be particularly economical and environmentally safe, because, on the one hand, the comminution of the crude pigment by wet milling does not lead to pollution of the air, due to formation of dust, and, on the other hand, no waste disposal . 6358-30-1: Chemical Class: Organic pigment Properties: Dischargeability 5 Fastness: standard depth: 1/3: 1/1: Light Xenotest 7 7-8 standard depth: 1/1: Washing 95°C . Our goal is "100% customer satisfaction by our product quality, price & our team service" and enjoy a good reputation among clients. 8 Carbazole Violet Pigment 23 from China and India, Inv. PV23 is used in almost all media which are typically colored with pigments. The color additive is carbazole violet (Pigment Violet 23) (CAS Reg. This study reports the concentrations and congener partners of polychlorinated biphenyls (PCBs) in commercially available paints. 17493 (Apr. : 6358-30-1 Name: Pigment Violet 23 Molecular Formula: C34H22Cl2N4O2 Melting Point: 385℃ (dec.) Refractive index:1.787 Purity: 95%, 99% usage: raw material used in Synthesis Brand Name: Dayang EINECS: 228-767-9 Aggregated Product Volume (EPA CDR 2016) 1,000,000 - 10,000,000 lb. Pigment Violet 23 affords bluish violet shade which unique from other violet pigments, and entirely fast to many organic solvents. In addition, the synthesized pigment largely consists of hexagonal crystals with a diameter of hundreds of nanometers. It is prepared by condensation of chloranil and 3-amino-N-ethylcarbazole.It has a centrosymmetric angular structure. Pigment Violet 23 CI# 51319 45 5 5 5 4 5 5 5 4 4 8 7 VFD-5102 Pigment Violet 27 CI# 42535:3 30.0 2-3 2-3 4 1 1 5 1 3 3 3 2-3 BFD-1149 Pigment Blue 15:0 CI# 74160 34.0 5 5 5 5 5 5 5 5 5 8 8 BFD-1121 Pigmant Blue 15:3 CI# 74160 36.0 5 5 5 5 5 5 5 5 5 8 8. notes. Pigment Violet 23, by subjecting 3-amino-9-ethylcarbazole to a condensation reaction with excess tetrachlorobenzoquinone in an organic solvent in the presence of acid acceptors and, if appropriate, condensation agents, in . Pigment violet 23 RLP for Plastic、coating、inks. 1, 2015). Organic Orange Pigments: . (1) The substance listed in paragraph (a) of this section may be used as a color additive in contact lenses in amounts not to exceed the minimum reasonably required to accomplish the intended coloring effect. Uses Solvent base Inks Water base Inks […] Commercial Name. ECV02301 is the raw material of producing carbazol violet, it is the intermediate of direct blue 108 Color Sample : Pigment violet 23 Applications. The second possibility is cobalt arsenate Co3(AsO4)2. 51319). CAS Registry Numbers are assigned by the Chemical Abstracts Service, a division of the American Chemical Society. Classification: Organic Intermediate Cas NO. Semtin Zone. violet or black colors in pottery clays or glazes. 6358-30-1 - CGLVZFOCZLHKOH-UHFFFAOYSA-N - Pigment Violet 23 - Similar structures search, synonyms, formulas, resource links, and other chemical information. The newer samples may contain cobalt ammonium phosphate CoNH4PO4 and also lithium cobalt phosphate LiCoPO4. PRODUCT DETAILS. Pigment Violet 23, by subjecting 3-amino-9-ethylcarbazole to a condensation reaction with excess tetrachlorobenzoquinone in an organic solvent in the presence of acid acceptors and, if appropriate, condensation agents, in . On the other hand, high manganese ore sample has MnO content of about 78.83% and Fe 2 O 3 HAZARDS IDENTIFICATION PV23 is used in almost all media which are typically colored with pigments. 6358-30-1, Colour Index No. C.I. Pigment Yellow 74. 7 Carbazole Violet Pigment 23 from China and India, Institution of a Five‐Year Review, 80 Fed. When pigment violet 23, one of the mostly-insoluble aryl halides, was subjected to the reaction with an aryl boron nucleophile at 120 degrees C in a ball mill in the presence of the palladium . Chemical Type Carbazole Violet Constitution No. The list of suitable systems ranges from coatings and paints to plastics, printing inks, and other special purpose medias. Recommended for color plastic,coatings and printing inks,etc.We have two color shades for your choice,R/L and B/L.It shows strong violet and high color strength.Its the best violet in all series violet pigment,like PV3,PV27.Its heat resistance can be reached to the 280c in some PP material.And excellent weather resistance and light fastness.If you . 1233 also exhibits excellent fastness to light and weathering in most applications, affected only slightly in reductions with titanium dioxide. Pigment Yellow HR. References. 51319: CAS No. Pigment Violet 23 215247-95-3 HENAN SUNLAKE ENTERPRISE CORPORATION China (Mainland) includes the crude pigment in any form (e.g., dry powder, paste, wet cake) and finished pigment in the form of presscake and dry color.12 8Carbazole Violet Pigment 23 from China and India; Scheduling of Expedited Five‐Year Reviews, 80 Fed. Number is pigment violet 23,pigment violet 23 Main Application:General Type. The present invention relates, therefore, to a process for the manufacture of the organic pigment of the formula I, C.I. Application. It includes the Color Index names, chemical composition, light fastness ratings and heath and safty information for pigments and paints. This structural formula was created with Inkscape, and then . No. Pigment Violet 23, tech. Buy high-quality Pigment Violet 23 from S D International - leading manufacturer and exporter of Pigment Violet 23 CAS (6358-30-1) are known for its high quality. We're well-known as one of the leading pigment violet 23 manufacturers in China. It offers performance better than the leading competitors. Masstone 120 Tint % Pigment Pigment Red 57:1. Pigment Violet 23: C. I. Pigment Violet 23 215247-95-3 Suppliers,provide C.I. Pigment Violet 23: C. I. Download Citation | Dioxazine Violet Pigments | dioxazine violet pigments;dianil;pigmentation;Pigment Violet 23;Pigment Violet 37;preparation | Find, read and cite all the research you need on . . These compounds are typically prepared by a five-stage synthesis process which involves N-alkylation of carbazole, followed by nitration, reduction, condensation and ring closure. Pigment violet 23 is an organic compound that is a commercial pigment.It is member of the dioxazine family of heterocyclic compounds, but derived from carbazoles. Molecular formula: C 24 H 27 N 3. Pigment Violet 23. Molecular Formula: C34H22Cl2N4O2. 51319: CAS No. Pigment Yellow 83. Semtin Zone. Buy high-quality Pigment Violet 23 from S D International - leading manufacturer and exporter of Pigment Violet 23 CAS (6358-30-1) are known for its high quality. Key Attributes Excellent transparency Excellent gloss Superior rheology These products are supported by: Pigment Violet-23 is a water dispersed pigment, exceptionally lightfast, yields an intense violet color, and is formulated specifically for the coloring of paper pulp. Associated Identifiers. 8 Ounces Pigment Violet-23, Carbazole Dioxazine . Pigment violet 27 shows a very bluish, clean violet shade, similar to that of P.V.39. ExpERImEntAl For the preparation of cobalt light-violet pigment, analyti-cal grade CoCO 3, (NH 4) 3 PO 4 and H 3 PO 4 were used as starting materials. Original file . Pigment Red 53:1. 6358-30-1, with the chemical name of diindolo [3,2-b:3',2'-m]triphenodioxazine, 8,18-dichloro-5, 15-diethy-5, 15-dihydro-, and molecular formula of C34H22Cl2N4O2.1 1 The bracketed section of the product description, [3,2-b:3',2'-m], is not . Trade Name:Permanent Violet RL C.I. Its concentration or specific mixture - PubChem < /a > C.I particles of a pigment the. ).We are integrating R & amp ; D, manufactruring and marketing into the whole, with the of. //Colourlex.Com/Project/Manganese-Violet/ '' > pigments, organic - Hunger - - Major Reference Works... < /a > 25 Kilograms Min. Enable it widely applied in almost all media which are typically colored with pigments ColourLex < >. Application: General Type pigment as a shading component and heath and safty information pigments... Crystals with a diameter of hundreds of nanometers integrating R & amp D. Angular structure '' > US Patent Application for carbazole Dioxazine pigments... < /a > Preparation welcome to! Is pigment Violet 23 is a global supplier of Dioxazine Violet pigments that provide a Violet..., extraordinary light and weathering in most applications, affected only slightly in reductions with dioxide...: C.I process for the manufacture of the American chemical Society numbers assigned! Resistance even in reduced shade prismatic, acicular or lamellar 3-amino-9-ethylcarbazole to 2,5-di-. By reacting chloranil ( tetrachloro-p-benzoquinone ) with two mols of 3-amino-9-ethylcarbazole to give (... A diameter of hundreds of nanometers we warmly welcome you to buy high quality pigment Violet 23 215247-95-3 SUNLAKE! Invention relates, therefore, to a process for the manufacture of the organic of! 23 Synthesis.svg D, manufactruring and marketing into the whole, with the guarantee of effective quality //www.whatsinproducts.com/chemicals/view/1/5082!, Ltd. is a global supplier of Dioxazine Violet pigments that provide a bluish Violet,...: //www.researchgate.net/publication/285407770_Dioxazine_Violet_Pigments '' > pigments, organic - Hunger - - Major Reference Works... < /a > 25 (. ) '' > File: CI pigment Violet 23 by-products ( 1 ) //pubchem.ncbi.nlm.nih.gov/compound/C.I.-Pigment-Violet-23 '' US! 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