Synonym(s): Selenious acid disodium salt Formula: Na2O3Se Formula weight: 172.94 Purity: 99% min, typically 99.75% min (metals basis) CAS Number: 10102-18-8 UN Number: UN2630 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code: 2842.90 Hazard Statements: H300-H331-H317 Fatal if swallowed....