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Merck
CN

43543

Hydroxylamine-O-sulfonic acid

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About This Item

Linear Formula:
H2NOSO3H
CAS Number:
2950-43-8
Molecular Weight:
113.09
EC Number:
220-971-6
MDL number:
MFCD00011604
UNSPSC Code:
41115710
PubChem Substance ID:
329756350

Key Documents

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mp

210 °C (dec.) (lit.)

SMILES string

NOS(O)(=O)=O

InChI

1S/H3NO4S/c1-5-6(2,3)4/h1H2,(H,2,3,4)

InChI key

DQPBABKTKYNPMH-UHFFFAOYSA-N

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Signal Word

Danger

Hazard Statements

H302,H314,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 3 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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K Sakano et al.
Mutation research, 479(1-2), 101-111 (2001-07-27)
2-Nitropropane (2-NP), a widely used industrial solvent, is carcinogenic to rats. To clarify the mechanism of carcinogenesis by 2-NP, we investigated DNA damage by 2-NP metabolites, N-isopropylhydroxylamine (IPHA) and hydroxylamine-O-sulfonic acid (HAS), using 32P-5'-end-labelled DNA fragments obtained from genes that
K Kohda et al.
Nucleic acids symposium series, (17)(17), 145-148 (1986-01-01)
Amination of guanosine (Guo) with 2,4-dinitrophenoxyamine in aqueous DMF gave 7-amino-Guo, which was readily converted to 8,5'-O-cyclo-Guo, and 8-hydroxy-Guo. Deoxyguanosine (dG) gave only deglycosylated 7-amino-G under the same reaction condition. Aminations of Guo and dG with hydroxylamine-O-sulfonic acid above pH

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