Name: Sodium hydrosulfite EINECS: 231-890-0 Molecular Formula: Na2S2O4 CAS No.: 7775-14-6 Synonyms: Sodium dithionite hydrate; Sodium hydrosulphite; Sodium dithionite InChI: InChI=1/2Na.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2 Molecular Weight: 174.1 Density: 2.13 Name: Sodium hydrosulfite Boiling Point: 1390°C Melting Point: 300℃ (dec.)