81-48-1

Basic information

• Product Name: Solvent Violet 13
• Synonyms: 10-Anthracenedione,1-hydroxy-4-(4-methylphenyl)amino-9;11092violet;1-hydroxy-4-((4-methylphenyl)amino)-10-anthracenedione;1-hydroxy-4-(p-toluidino)-anthraquinon;1-Hydroxy-4-(p-toluido)anthraquinone;1-hydroxy-4-[(4-methylphenyl)amino]-10-anthracenedione;1-hydroxy-4-p-toluidino-anthraquinon;9,10-Anthracenedione,1-hydroxy-4-(4-methylphenyl)amino-
• CAS NO: 81-48-1
• Molecular Formula: C₂₁H₁₅NO₃
• Molecular Weight: 329.35
• EINECS: 201-353-5
• Product Categories: Dyes and Pigments;Aminoanthraquinones;Anthraquinones;Hydroxyanthraquinones;Solvent Dyestuff
• Mol File: 81-48-1.mol
• Article Data: 10

Chemical Properties

• Melting Point: 186.1 °C
• Boiling Point: 466.95°C (rough estimate)
• Flash Point: 268.7 °C
• Appearance: /
• Density: 1.2464 (rough estimate)
• Vapor Pressure: 0Pa at 25℃
• Refractive Index: 1.5614 (estimate)
• Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
• PKA: 8.00±0.20(Predicted)
• Water Solubility: 9.3μg/L at 25℃
• CAS DataBase Reference: Solvent Violet 13(CAS DataBase Reference)
• NIST Chemistry Reference: Solvent Violet 13(81-48-1)
• EPA Substance Registry System: Solvent Violet 13(81-48-1)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39-24/25
• RTECS: CB7700000
• Hazardous Substances Data: 81-48-1(Hazardous Substances Data)

Usage

Preparation

1,4-Dihydroxyanthracene-9,10-dione Or Anthracene-1,4,9,10-tetraol Or 1-Bromo-4-hydroxyanthraquinone Or 1-Chloro-4-hydroxyanthracene-9,10-dione and p-Methylaniline reaction.

Flammability and Explosibility

Notclassified

Properties and Applications

brilliant blue purple. In concentrated sulfuric acid for SAP green, dilution after olive, red blue precipitation Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%) Melting point Stable ISO >7 330 Insoluble

Standard

Light Fastness

Melting point

Stable

InChI:InChI=1/C21H15NO3/c1-12-6-8-13(9-7-12)22-16-10-11-17(23)19-18(16)20(24)14-4-2-3-5-15(14)21(19)25/h2-11,22-23H,1H3

Upstream product

• 81-64-1 1,4-dihydroxy-9,10-anthracenedione 
• 17648-03-2 9,10-Dihydroxy-2,3-dihydro-anthracene-1,4-dione 
• 106-49-0 p-toluidine 
• 82-42-8 4-chloro-1-hydroxyanthraquinone 
• 540-23-8 p-toluidine hydrochloride 
• 476-60-8 leucoquinizarin 
• 104-13-2 4-Butylaniline 
• 78119-57-0 Acetic acid 9,10-dioxo-4-p-tolylamino-9,10-dihydro-anthracen-1-yl ester 
• 98624-30-7 4,9-di(p-tolylamino)-1,10-anthraquinone 
• 99-99-0 1-methyl-4-nitrobenzene 

Downstream Products

• 3443-92-3 4-(4-hydroxy-9,10-dioxo-9,10-dihydro-[1]anthrylamino)-toluene-3-sulfonic acid 

Relevant articles and documents

Synthesis of novel reactive disperse dyes comprising carbamate and cyanuric chloride groups for dyeing polyamide and cotton fabrics in supercritical carbon dioxide

Two types of novel reactive disperse dyes comprising carbamates (CNU-6A, CNU–6B and CNU–6C) and cyanuric chloride (CNU-8A, CNU–8B and CNU–8C) reactive functional groups were designed and synthesized from the anthraquinone parent body. The structures of these synthesized reactive disperse dyes have been defined by IR, 1H NMR, 13C NMR, HRMS and UV–Vis spectroscopy. Further, the dyeing experiments were performed on polyamide and cotton fabrics in supercritical carbon dioxide conditions with the 0.5% (owf) of dye concentration, at 25 MPa (pressure), and 120 °C (temperature) for 1 h. A significant improvement in the color strength and dye fixation efficiency has been observed for the carbamate reactive disperse dyes. This is due to the formation of a covalent bond between the carbamate functional group and the amine (–NH) and hydroxy (–OH) group of the fabrics. Besides, the dyed fabrics displayed favorable fastness (wash, crocking, light and sweat) properties indicating that the synthesized dyes meet the garment dyeing standards.

Method for preparing solvent violet 13

The invention relates to a synthetic method of a dye, specifically to a method for preparing solvent violet 13. The method comprises the following steps: with 1,4-dihydroxy anthraquinone, a 1,4-dihydroxy anthraquinone leuco body and p-toluidine as raw materials, performing a condensation reaction by taking water as a reaction medium in the presence of alkali, boric acid and a phase transfer catalyst, and after the reaction is finished, filtering, washing and drying a reacted material to obtain a solvent violet 13 product.

Synthetic method for solvent violet 13

The invention discloses a synthetic method for solvent violet 13, and develops a new route for synthesizing violet 13 by employing a one-pot process. The method comprises successively adding methanol, 1,4-dihydroxyanthraquinone, 4-nitrotoluene, iron powder and boric acid into a pressure container, sealing the container and performing nitrogen displacement, then heating with stirring, introducing hydrogen for hydrogenation reduction, after the reaction system stops absorbing hydrogen, performing warm-keeping reaction, heating after the reaction is finished, performing condensation reaction, cooling after the reaction is finished, releasing the pressure, introducing air and performing oxidation reaction, and finally adding hydrochloric acid for beating, filtering, washing and drying, so as to obtain violet 13. According to the method, the initial raw material p-toluidine is replaced by 4-nitrotoluene, direct usage of the highly-toxic raw material p-toluidine is avoided, and the synthetic technology is low in toxicity and friendly to environment. By pouring all of the raw materials into the container, the postprocessing process of the intermediate step is saved, and a large amount of manpower and material resource is saved.