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  • 4-aminobenzenesulfonic acid  121-57-3
Name:4-aminobenzenesulfonic acid 121-57-3
CAS No:121-57-3

PRODUCT DESCRIPTION


Description

Sulfanilic acid (4-aminobenzenesulfonic acid ) is an off-white crystalline solid which finds application in quantitative analysis of nitrate and nitrite ions. The solid acid exists as a zwitterion, and has an unusually high melting point.

Basic Info

Chemical Name 4-aminobenzenesulfonic acid
Synonyms

Sulfanilic Acid;4-Aminobenzenesulfonic acid,Aniline-4-sulfonic acid;4-Aminobenzenesulfonic acid,Aniline-4-sulfonic acid,Sulfanilic acid;4-Aminobenzenesulfonic acid,Sulfanilic acid;4-Aminobenzenesulfonic acid;4-Sulfoaniline;Benzenesulfonic acid, 4-amino-;p-Anilinesulfonic Acid;Collapse

CAS No. 121-57-3
Molecular Formula C6H7NO3S
Molecular Weight 173.19000
PSA 88.77000
LogP 2.17750

Properties

Appearance & Physical State light grey powder
Density 1.485
Boiling Point 500ºC
Melting Point 288ºC (dec)
Water Solubility 0.1 g/100 mL (20 ºC)
Stability Stable. Incompatible with strong oxidizing agents.
Storage Condition Store in dark

Safety Info

RTECS WP3895500
Safety Statements S24-S37
HS Code 2921420090
WGK Germany 1
RIDADR UN 2790 8/PG 3
Risk Statements R36/38; R43
Hazard Codes Xi
Caution Statement P280; P305 + P351 + P338
Symbol GHS07
Signal Word Warning
Hazard Declaration H315; H317; H319

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