462268

4,4′-Diamino-2,2′-stilbenedisulfonic acid

technical grade, 85%

• Synonym(s): Amsonic acid
• Empirical Formula (Hill Notation): C₁₄H₁₄N₂O₆S₂
• CAS Number: 81-11-8
• Molecular Weight: 370.40
• EC Number: 201-325-2
• MDL number: MFCD00024946
• UNSPSC Code: 12352100
• PubChem Substance ID: 24869958
• NACRES: NA.22

Properties

• grade: technical grade
• Quality Level: 100
• Assay: 85%
• mp: >300 °C (lit.)
• functional group: sulfonic acid
• SMILES string: Nc1ccc(\C=C\c2ccc(N)cc2S(O)(=O)=O)c(c1)S(O)(=O)=O
• InChI: 1S/C14H14N2O6S2/c15-11-5-3-9(13(7-11)23(17,18)19)1-2-10-4-6-12(16)8-14(10)24(20,21)22/h1-8H,15-16H2,(H,17,18,19)(H,20,21,22)/b2-1+
• InChI key: REJHVSOVQBJEBF-OWOJBTEDSA-N

Description

General description

Disodium salt of 4,4′-diamino-2,2′-stilbenedisulfonic acid may be used in the synthesis of dyes and optical brighteners or fluorescent whitening agents.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves