CAS 117-61-3: 2,2′-Benzidinedisulfonic acid

Description: 2,2′-Benzidinedisulfonic acid, with the CAS number 117-61-3, is an organic compound that belongs to the class of sulfonic acids. It is characterized by the presence of two sulfonic acid groups (-SO3H) attached to a benzidine structure, which consists of two connected benzene rings. This compound is typically a white to light yellow crystalline solid and is soluble in water due to its sulfonic acid groups, which enhance its polarity. 2,2′-Benzidinedisulfonic acid is primarily used in the dye industry, particularly in the synthesis of azo dyes, and as a reagent in various chemical analyses. It is important to note that compounds related to benzidine have raised health concerns due to their potential carcinogenic properties, leading to strict regulations regarding their use and handling. Safety precautions should be taken when working with this substance, including the use of personal protective equipment and proper ventilation.

Formula: C₁₂H₁₂N₂O₆S₂

InChI: InChI=1S/C12H12N2O6S2/c13-7-1-3-9(11(5-7)21(15,16)17)10-4-2-8(14)6-12(10)22(18,19)20/h1-6H,13-14H2,(H,15,16,17)(H,18,19,20)

InChI key: InChIKey=MBJAPGAZEWPEFB-UHFFFAOYSA-N

SMILES: O=S(=O)(O)C=1C=C(N)C=CC1C2=CC=C(N)C=C2S(=O)(=O)O

Synonyms:

• 2,2'-Benzidinedisulfonic Acid
• 2,2′-Biphenyldisulfonic acid, 4,4′-diamino-
• 2,2′-Disulfo-4,4′-diaminobiphenyl
• 2,2′-Disulfobenzidine
• 4,4'-Diaminobiphenyl-2,2'-Disulfonate
• 4,4'-Diaminobiphenyl-2,2'-disulfonic acid
• 4,4′-Benzidine-2,2′-disulfonic acid
• 4,4′-Diamino-[1,1′-biphenyl]-2,2′-disulfonic acid
• 4,4′-Diaminobiphenyl-2,2′-bis(sulfonic acid)
• 4,4′-Diaminodiphenyl-2,2′-disulfonic acid
• 6,6′-Bimetanilic acid
• Bdsa
• NSC 3763
• [1,1'-Biphenyl]-2,2'-disulfonic acid, 4,4'-diamino-

4,4'-Diaminobiphenyl-2,2'-disulfonic acid hydrate, cont. up to 30% water

CAS: 117-61-3

4,4'-Diaminobiphenyl-2,2'-disulfonic acid hydrate is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, …

• Formula: C₁₂H₁₂N₂O₆S₂
• Color and Shape: Pale yellow to pink to reddish purple, Powder or crystals or crystalline powder
• Molecular weight: 344.36

[1,1'-Biphenyl]-2,2'-disulfonic acid, 4,4'-diamino-

CAS: 117-61-3

• Formula: C₁₂H₁₂N₂O₆S₂
• Purity: 70%
• Color and Shape: Solid
• Molecular weight: 344.3635

4,4?-Diamino-2,2?-Biphenyldisulfonic Acid

CAS: 117-61-3

• Purity: 75%
• Molecular weight: 344.36g/mol

2,2'-Benzidinedisulfonic Acid (contains 20% Water at maximum)

CAS: 117-61-3

• Formula: C₁₂H₁₂N₂O₆S₂
• Purity: >70.0%(T)
• Color and Shape: White to Brown powder to crystal
• Molecular weight: 344.36

Benzidine-2,2'-disulfonic acid

CAS: 117-61-3

Benzidine-2,2'-disulfonic acid is a monomolecular dichroic molecule that has an absorption band at approximately 370 …

• Purity: Min. 95%