Hydroxylamine-O-sulfonic acid
ALDRICH/480975 - 99.998%
Synonym: (Aminooxy)
CAS Number: 2950-43-8
Empirical Formula (Hill Notation): H3NO4S
Molecular Weight: 113.09
EC Number: 220-971-6
MDL Number: MFCD00011604
Linear Formula: H2NOSO3H
Product Type: Chemical
| assay | 99.998% |
| InChI | 1S/H3NO4S/c1-5-6(2,3)4/h1 |
| InChI key | DQPBABKTKYNPMH-UHFFFAOYSA |
| mp | 210 °C (dec.) (lit.) |
| SMILES string | NOS(O)(=O)=O |
| storage temp. | 2-8°C |
| Application: | Hydroxylamine-O-sulfonic acid (HOSA) may be used to synthesize (Z)-1H-purin-6(7H)-ylideneaminooxysulfonic acid. HOSA may be used as an aminating reagent in the synthesis of: • 1-aminotetrazoles and 2-aminotetrazoles • N-aminopiperidine (NAPP) • 1H,1′ H-2,2′-biimidazole-1,1′-d |
| General description: | Hydroxylamine-O-sulfonic acid (HOSA), an O-substituted hydroxylamine, is a widely used aminating agent. It can behave as a nucleophile as well as an electrophile. The conversion of organoboranes obtained from hydroboration of olefins to amines using HOSA has been reported. |
| Packaging: | 25 g in poly bottle |
| Packaging: | 5 g in glass bottle |
| Symbol |    GHS05,GHS07,GHS09 |
| Signal word | Danger |
| Hazard statements | H302 - H314 - H410 |
| Precautionary statements | P260 - P280 - P301 + P312 + P330 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN3260 - class 8 - PG 2 - EHS - Corrosive solid, acidic, inorgan |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.998% |
| mp | 210 °C (dec.) (lit.) |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |