Sodium Metabisulfite by bioPLUS $104.98 2.5 kg - $104.98 500 g - $23.07 1 kg - $63.85 2.5 kg 500 g 1 kg Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Description Specifications Documents Technical Specifications Synonyms: Sodium Metabisulfite CAS#: 7681-57-4 Molecular Weight: 190.11 Molecular Formula: Na2O5S2 Ship Temperature: RT Storage Temperature: RT Composition Technical Documentation