sales@klarchem.com +90 530 315 00 65 Mon–Sat: 09:00 – 18:00
Get a Quote

hydroxylamine-O-sulfonic acid

Home/ Merck & Sigma/ CAS 2950-43-8
hydroxylamine-O-sulfonic acid molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 4 grades and pack sizes of hydroxylamine-O-sulfonic acid (CAS 2950-43-8). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS2950-43-8
Molecular formulaH3NO4S
Molecular weight113.09 g/mol
IUPAC nameamino hydrogen sulfate
SynonymsSulfamic acid N-oxide · Sulfoperamidic acid · Permonosulfamic acid · Amidosulfonic peracid · HAOS · Amidoperoxymonosulfuric acid
Safety & Hazards (GHS) Danger
Corrosive Corrosive Irritant Irritant Environmental hazard Environmental hazard
  • H302 Harmful if swallowed
  • H314 Causes severe skin burns and eye damage
  • H318 Causes serious eye damage
  • H400 Very toxic to aquatic life
  • H412 Harmful to aquatic life with long lasting effects

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand Product / grade Code
Sigma HYDROXYLAMINE-O-SULFONIC ACID, 97% 213136-100G
213136-25G		 Request Quote
Sigma HYDROXYLAMINE-O-SULFONIC ACID, 99.999% 480975-25G
480975-5G		 Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.