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Substance Name: Potassium metabisulfite [NF]
RN: 16731-55-8
UNII: 65OE787Q7W
InChIKey: RWPGFSMJFRPDDP-UHFFFAOYSA-L
Molecular Formulas
- H2-O5-S2.2K
- K2-S2-O5
- O5-S2.K2
Molecular Weight
- 222.323
Classification Codes
Classification Codes
- Mutation Data
- Pharmaceutic Aid (Antioxidant)
- Reproductive Effect
- Tumor Data
Superlist Classification Code
- Overall Carcinogenic Evaluation: Group 3
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Names and Synonyms
Name of Substance
- Disulfurous acid, dipotassium salt
- Potassium metabisulfite
- Potassium metabisulfite [NF]
- Potassium pyrosulfite
Synonyms
- CCRIS 1427
- Dipotassium disulfite
- Dipotassium metabisulfite
- Dipotassium pyrosulfite
- EC 240-795-3
- EINECS 240-795-3
- HSDB 5062
- Potassium disulfite
- Potassium disulfite (K2S2O5)
- Potassium metabisulfite
- Potassium pyrosulfite
- Pyrosulfurous acid, dipotassium salt
- UNII-65OE787Q7W
Systematic Names
- Dipotassium disulphite
- Disulfurous acid, dipotassium salt
- Disulfurous acid, potassium salt (1:2)
- Potassium pyrosulfite
Superlist Name
- Potassium metabisulfite
Registry Numbers
CAS Registry Number
- 16731-55-8
FDA UNII
- 65OE787Q7W
Other Registry Number
- 4429-42-9
System Generated Number
- 0016731558
Molecular Formulas
Molecular Formulas
- H2-O5-S2.2K
- K2-S2-O5
- O5-S2.K2
Molecular Formula Fragments
- COMPONENT
- H2-O5-S2
- K
- K2
- O5-S2