The Sigma-Aldrich catalog lists 3 grades and pack sizes of Sulfurous Acid (CAS 7782-99-2). Pick the code you need and request a quote for price and lead time from Klar Chem.
| CAS | 7782-99-2 |
|---|---|
| Molecular formula | H2O3S |
| Molecular weight | 82.07 g/mol |
| IUPAC name | sulfurous acid |
| Synonyms | Sulphurous acid · Schweflige saure · acide sulfureux · acido sulfuroso · schweflige Saeure · trioxosulfuric acid |
Corrosive
Irritant
⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).
| Brand | Product / grade | Code | |
|---|---|---|---|
| Sigma | SULFUROUS ACID, A.C.S. REAGENT | 247626-100G 247626-2KG 247626-500G |
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