Acid black 41

• CAS: 5850-37-3
• Catalog Number: ACM5850373
• Category: Other Products
• Molecular Weight: 718.53593
• Molecular Formula: C22H13N6Na3O12S3
• Description: Acid Black 41, also known as C.I. Acid Black 41 or Acid Black B, is a synthetic dye that belongs to the Acid Dye class. It is a black-colored dye that is used for various applications.
• Synonyms: trisodium,(6E)-4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-[(4-sulfonatophenyl)hydrazinylidene]naphthalene-2,7-disulfonate; 2,7-Naphthalenedisulfonic acid,4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-(4-sulfophenyl)diazenyl)-,sodium salt (1:3); Tr
• IUPAC Name: trisodium (6E)-4-amino-3-[(4-nitrophenyl)diazenyl]-5-oxo-6-[(4-sulfonatophenyl)hydrazinylidene]naphthalene-2,7-disulfonate
• InChI Key: RJQVQVAXRHAJAB-MDSXYSKBSA-K
• Solubility: Soluble in water as dark blue to blue-black, easily soluble in soluble fiber elements, slightly soluble in alcohol, and insoluble in other organic solvents.
• Appearance: Powder
• Application: Acid dyes are water-soluble anionic dyes commonly used for dyeing protein fibers such as silk, wool, and nylon, as well as other materials like leather and synthetic fibers.
• Storage: Room temperature
• EC Number: 227-450-2
• Exact Mass: 717.945
• Features And Benefits: Soluble in water as dark blue to blue-black. The strong sulfuric acid for dark olive green to, diluted as dark blue precipitation; In nitric acid for green precipitation, and then into a chestnut; In 10% of sodium hydroxide solution for light blue solution. In water solution to join strong hydrochloric acid for dark blue; Add sodium hydroxide solution as dark blue.
• H-Bond Acceptor: 17
• H-Bond Donor: 2
• PSA: 334.76
• XLogP3: 6.3709

Case Study

Acid Black 41 as a Preferred Dye Candidate for Pigments in Water-Based Inks

Akira Mizutani, et al. US 20060275606A1, 2006.

A pigment for water-based inks has been developed that has excellent anti-clogging reliability and pigment anti-settling stability while providing a high level of hiding power. This water-based ink pigment contains core particles composed of a material with a lower specific gravity than titanium oxide. The surface of the core particles is covered with a titanium oxide layer, and the particle size of the pigment is 0.05 to 5 μm. In this pigment system, acid black 41 can be used as one of the further preferred examples of acid dyes and azo dyes.
Method for producing pigments for water-based inks
· Provides aqueous emulsions containing core particles.
· The aqueous emulsion is added to the organic solvent in which the titanium alkoxide is dissolved.
· Titanium oxide is precipitated on the surface of the core particles through hydrolysis of the titanium alkoxide.
· Light-colored inks can be prepared by adding appropriate amounts of pigments and/or dyes.

Custom Q&A

What is the molecular formula of acid black 41?

The molecular formula of acid black 41 is C22H13N6Na3O12S3.

What are some synonyms of acid black 41?

Some synonyms of acid black 41 are 5850-37-3, naphthalene blue black CS, blauschwartz, NSF, and 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[(4-sulfophenyl)azo]-, trisodium salt.

When was acid black 41 created?

Acid black 41 was created on January 16, 2019.

What is the molecular weight of acid black 41?

The molecular weight of acid black 41 is 718.5 g/mol.

What is the parent compound of acid black 41?

The parent compound of acid black 41 is CID 135422373.

What is the IUPAC name of acid black 41?

The IUPAC name of acid black 41 is trisodium;4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-[(4-sulfonatophenyl)diazenyl]naphthalene-2,7-disulfonate.

What is the InChIKey of acid black 41?

The InChIKey of acid black 41 is DPCLMWZFRAYCIS-UHFFFAOYSA-K.

What is the CAS number of acid black 41?

The CAS number of acid black 41 is 5850-37-3.

How many hydrogen bond donor counts does acid black 41 have?

Acid black 41 has 2 hydrogen bond donor counts.

What is the topological polar surface area of acid black 41?

The topological polar surface area of acid black 41 is 338Ų.