3-Aminobenzenesulfonic acid , 98% , 121-47-1

Synonym(s):
Metanilic acid

CAS NO.：121-47-1

Empirical Formula: C6H7NO3S

Molecular Weight: 173.19

MDL number: MFCD00065345

EINECS: 204-473-6

PRODUCT Properties

• Melting point: >300 °C (lit.)
• Density: 1.69
• refractive index: 1.5500 (estimate)
• storage temp.: Keep in dark place,Inert atmosphere,Room temperature
• solubility: ethanol: very slightly soluble(lit.)
• form: Powder
• pka: 3.73(at 25℃)
• color: White to grayish-beige
• Water Solubility: slightly soluble
• Merck: 14,5927
• BRN: 473264
• Stability: Stable. Combustible. Incompatible with strong oxidizing agents, acids.
• LogP: -2.77 at 21℃

Description and Uses

Metanilic acid was used in the synthesis of cytocompatible sulfonated polyanilines. It was used in fabrication of novel glucose biosensor having large active surface area and excellent conductivity. It undergoes microbial desulfonation to 3-aminophenol by Pseudomonas sp. strain S-313. It can be used to produce CN3O6(1-)*Cs(1+) and dicesium salt of N-nitrometanilic acid at temperature of 25°C.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302+H312+H332
• Precautionary statements: P261-P264-P280-P301+P312-P302+P352+P312-P304+P340+P312
• Hazard Codes: Xn
• Risk Statements: 20/21/22
• Safety Statements: 23-28-28A-25
• RIDADR: 3261
• WGK Germany: 1
• RTECS: OY2300000
• TSCA: Yes
• HazardClass: IRRITANT
• HS Code: 29214200