70956-27-3

Basic information

• Product Name: Solvent Violet 31
• Synonyms: Violet BS;C.I.Solvent Violet 31
• CAS NO: 70956-27-3
• Molecular Formula: C14H8Cl2N2O2
• Molecular Weight: 307.13152
• Product Categories: Solvent Dyestuff
• Mol File: 70956-27-3.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Solvent Violet 31(CAS DataBase Reference)
• NIST Chemistry Reference: Solvent Violet 31(70956-27-3)
• EPA Substance Registry System: Solvent Violet 31(70956-27-3)

Safety Data

• Hazardous Substances Data: 70956-27-3(Hazardous Substances Data)

Usage

Description

Solvent Violet 31 is a blue light purple dye that exhibits properties such as light fastness, heat resistance up to 310°C, and stability in the presence of sodium carbonate and hydrochloric acid. It has a melting point of >7 and is insoluble in water.

Uses

Used in Dye Industry:
Solvent Violet 31 is used as a colorant for various applications in the dye industry, including coloring fabrics, plastics, and other materials. Its light fastness and heat resistance make it suitable for use in high-temperature processes and products that require long-lasting color.
Used in Chemical Industry:
Solvent Violet 31 is used as a reagent or intermediate in the chemical industry for the synthesis of other dyes, pigments, or compounds. Its stability in the presence of certain chemicals allows it to be used in various chemical reactions and processes.
Used in Research and Development:
Solvent Violet 31 can be used as a research tool in the development of new dyes, pigments, or other related compounds. Its unique properties, such as its color and stability, make it a valuable resource for scientists and researchers working in the field of color chemistry.

Preparation

1,4-Diamino-2,3-dichloroanthracene-9,10-dione in 1-Nitrobenzene using sulfuryl chloride chlorination.

Standard

Light Fastness

Melting point

Stable

Upstream product

• 2841-29-4 1,2,3,4-tetrachloro-9,10-anthraquinone 
• 128-95-0 1,4-diamino-9,10-anthraquinone 
• 5327-72-0 1,4-diamino-anthracene-9,10-diol 
• 90655-97-3 2,3-dichloro-1,4-diaminoanthraquinone diboracetate 
• 7791-25-5 sulfuryl dichloride 
• 98-95-3 nitrobenzene 
• 81-63-0 1,4-diamino-2,3-dihydroanthraquinone 

Downstream Products

• 91381-21-4 1,4-diamino-2-chloro-3-phenoxy-anthraquinone 
• 124121-79-5 4,5-bis-p-tolylmercapto-anthra[1,9-de;4,10-d'e']bis[1,2,3]oxathiazine-2,2,7,7-tetraoxide 

Relevant articles and documents

Environment-friendly and energy-saving process for synthesizing 1, 4-diamino-2, 3-dichloroanthraquinone

The invention relates to the technical field of dye intermediates, in particular to a process for synthesizing 1, 4-diamino-2, 3-dichloroanthraquinone. The process comprises the following steps: adding a certain amount of chlorobenzene serving as a solvent into a reaction container, adding a certain amount of 1, 4-diaminoanthraquinone leuco body and zinc peroxide serving as a catalyst after the moisture is detected to be qualified, heating to 40-50 DEG C, and stirring and preserving heat for 10-20 minutes; stirring and dropwise adding quantitative sulfuryl chloride under the condition of 40-50 DEG C, and preserving heat for 10-60 minutes under the condition after dropwise adding is finished; after the reaction is completed, performing vacuum pumping for 30-60 minutes, and adding sodium carbonate to adjust the pH value of the reaction liquid to be nearly neutral; and performing water vapor distillation to recover the solvent, and filtering and washing the material to obtain the product. According to the synthesis process of the 1, 4-diamino-2, 3-dichloroanthraquinone provided by the invention, the catalyst zinc peroxide is added, so that the reaction temperature can be reduced, the reaction time can be shortened, the dosage of the sulfuryl chloride can be reduced, and the synthesis process has positive significance on reducing the cost and reducing the environmental protection pressure.

REACTION OF BORATE COMPLEXES OF 1,4-DIAMINO- AND 1-AMINO-4-HYDROXYANTHRAQUINONES WITH THE ANIONS OF CH ACIDS

The reaction of the diboroacetates of 1,4-diamino- and 1-amino-4-hydroxyanthraquinones with CH acids in an aprotic polar solvent in the presence of a base leads to the angular 5-amino- and 5-hydroxynaphtoindole-6,11-diones respectively.In the reaction of the diboroacetate of 2,3-dichloro-1,4-diaminoanthraquinone with dibenzoylmethane the main reaction product is the linear 4,11-diaminoanthrafuran-5,10-dione.