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

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

Uses

Used in Textile Industry:
Solvent Violet 13 is used as a dye for coloring textiles, providing a vibrant blue-purple shade that is resistant to light and heat.
Used in Plastics and Polymers Industry:
Solvent Violet 13 is used as a colorant for plastics and polymers, imparting a stable blue-purple color that maintains its appearance even under heat and light exposure.
Used in Inks and Paints Industry:
Solvent Violet 13 is used as a pigment in inks and paints, offering a consistent and long-lasting blue-purple color that is resistant to fading and discoloration.
Used in Analytical Chemistry:
Solvent Violet 13 is used as an indicator in analytical chemistry, where its color change in response to pH or other chemical changes can be used to determine the presence or concentration of specific substances.

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

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 
• 98624-30-7 4,9-di(p-tolylamino)-1,10-anthraquinone 
• 104-13-2 4-Butylaniline 
• 99-99-0 1-methyl-4-nitrobenzene 
• 476-60-8 leucoquinizarin 
• 540-23-8 p-toluidine hydrochloride 
• 78119-57-0 Acetic acid 9,10-dioxo-4-p-tolylamino-9,10-dihydro-anthracen-1-yl ester 
• 82-42-8 4-chloro-1-hydroxyanthraquinone 

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.

Plastic colorant purple B and preparation method thereof

The invention provides a plastic colorant purple B and a preparation method thereof. The purple B is prepared from crude purple B and methanol. The crude purple B is prepared from the following components in parts by weight: 200-250 parts of 25-35% butanol, 230-250 parts of 1, 4-dihydroxy anthraquinone, 106-108 parts of p-toluidine, 120-125 parts of 25-35% hydrochloric acid, 60-65 parts of boric acid and 79-81 parts of a catalyst, wherein the ratio of the methanol to the crudepurple B in parts by weight is (2-4): 1, and the methanol is methanol with the concentration of 30-40%. According to the plastic colorant purple B and the preparation method thereof, the reaction is rapid and complete, almost no side reaction exists, the product purity is high, and the prepared purple B has the advantages of needle-like crystal form, stable hue, beautiful appearance, high coloring rate, high light resistance, high solvent resistance and the like.

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.

Synthesis method of environment-friendly solvent violet 13 with low toxicity and low harm

The invention relates to a synthesis method of environment-friendly solvent violet 13 with low toxicity and low harm. The method comprises the following steps: (a), N-buthylimidazole and an auxiliaryare added to a high-pressure reaction container, chloroethane gas is slowly introduced for reaction, stirring is continued, and an ionic liquid is obtained; (b), the ionic liquid is heated to 75-85 DEG C, 1,4-dihydroxyanthraquinone, a 1,4-dihydroxyanthraquinone leuco body and methylaniline are added, the temperature is increased to 95-105 DEG C for a condensation reaction, and a first mixed solution is obtained; and (c), the first mixed solution is cooled to 40-50 DEG C and subjected to suction filtration, a filter cake and a filtrate are obtained, the filter cake is subjected to aftertreatment, and the solvent violet 13 is obtained. The synthesized ionic liquid is taken as the solvent, by means of model selection of organic cations in the ionic liquid, the condensation reaction is changedinto single condensation, product quality is improved to 95% or higher, yield reaches 90% or higher, production cost is greatly reduced, economic benefits are obvious, and pollution emissions are reduced; and for the obtained solvent violet 13 dye, delta E is smaller than 0.5, delta C represents partially colorful, and pressure value is smaller than 0.5.

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.

Preparation of substituted aminoanthraquinones

Process for preparing substituted aminoanthraquinones by reacting 1,4-di-hydroxyanthraquinone with amines in the presence of dihydro-1,4-dihydroxyanthraquinone and a boric ester.

Preparation of 1-amino-4-hydroxyanthraquinones

The present invention relates to a process for preparing 1-amino-4-hydroxyanthraquinones of the formula (I) wherein R is an aliphatic or aromatic radical, by reacting 1,4-dihydroxyanthraquinone, optionally as a mixture with 2,3-dihydro-1,4-dihydroxyanthraquinone, with aliphatic or aromatic amines in the presence of N-methyl-2-pyrrolidone.

Methods of printing phase change ink compositions

The invention encompasses a compound having the formula: wherein at least one Q1, Q2, Q3 and Q4 is a halogen atom and any Of Q1, Q2, Q3 and Q4 which is not a halogen atom is a hydrogen atom; and wherein R comprises at least two carbon atoms. The invention further encompasses inclusion of such compound into phase change ink carrier compositions, as well as printing methods utilizing such compound.

4,9-DISUBSTITUTED 1,10-ANTHRAQUINONES AND THEIR TAUTOMERISM

The N-alkyl-, N-aryl-, and N-acetyl-substituted 9-imines of 1-hydroxy-4-aminoanthraquinone exist preferentially in the 4,9-diamino-1,10-anthraquinone form.Tautomerism is only observed for diamines with reduced basicity in the nitrogen atom at position 9.

Method for dyeing human hair with cationic polymeric dyes

A new class of water soluble cationic dyes especially useful in the rapid dyeing of hair prepared by the covalent reaction of visibly colored optical chromophores with selected polymeric backbones containing at least one primary, secondary, or tertiary amino group per repeating unit.