Chem
J-GLOBAL ID:200907047592104551   Nikkaji number:J44.049C

Sodium metasulfite

ピロ亜硫酸ナトリウム
Substance type:
Substance type
Substance type classified into 3 categories.
Decided structure: Substances with a clear structure
Undicided Structure: Substances with unknown or undetermined structure
Mixtures: Mixtures, racemic compounds, or compounds with relative structural arrangements
Decided structure
Molecular formula: Na2O5S2
Molecular formula furigana: NA2-O5-S2
Molecular weight: 190.090
InChI: InChI=1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI key: HRZFUMHJMZEROT-UHFFFAOYSA-L
SMILES: [Na]OS(=O)S(=O)(=O)O[Na]
Systematic name  (4):
  • 二亜硫酸ジナトリウム
  • 二亜硫酸二ナトリウム
  • ({[(ソジオオキシ)スルフィニル]スルホニル}オキシ)ナトリウム
  • ({[(sodiooxy)sulfinyl]sulfonyl}oxy)sodium
Other name (5):
  • ピロ亜硫酸ナトリウム
  • Sodium pyrosulfite
  • Disulfurous acid disodium salt
  • メタスルファイトナトリウム
  • Sodium metasulfite
CAS registry number: 7681-57-4
Regulation number (2):
  • EINECS2316730
  • TSCA(7681-57-4)
KEGG DRUG: D02054
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