CAS 7773-03-7 — 1 EU Cosmetic Records

Chemical identity and properties

PubChem 2D chemical structure for CAS 7773-03-7

CAS 7773-03-7PubChem CID 23663620

Potassium Bisulfite

IUPAC name: potassium hydrogen sulfite

Molecular formula: HKO3S
Molecular weight: 120.17 g/mol
Exact mass: 119.92834655 Da
Topological polar surface area: 79.6 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 4
Covalent units: 2
Defined stereocentres: 0

Also known as

Monopotassium sulfiteQJK5LO891PSulfurous acid, potassium salt (1:1)POTASSIUM BISULPHITEUNII-QJK5LO891PPotassium sulfite, hydrogenINS NO.228POTASSIUM BISULFITE [II]

16 more reported names

HSDB 1263INS-228POTASSIUM BISULFITE [HSDB]Sulfurous acid, monopotassium saltPOTASSIUM BISULFITE [MART.]EINECS 231-870-1E-228POTASSIUM BISULFITE (II)POTASSIUM BISULFITE (MART.)RefChem:175431POTASSIUM BISULFITE SOLUTIONPOTASSIUM BISULPHITE SOLUTIONUN2693231-870-1potassium;hydrogen sulfitePotassium hydrogen sulphite

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External database identifiers

EPA DTXSID:DTXSID6064795

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 7773-03-7

1 total

No records found for this CAS number.

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CAS 7773-03-7 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

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