Synonyms: 1,8-Dihydroxy-3,6-naphthalenedisulfonic acid disodium salt dihydrate4,5-Dihydroxy-2,7-naphthalene disulfonic acid disodium salt dihydrate Grade: ACS reagent CAS No.: 5808-22-0 Molecular Formula: C10H6O8S2·2Na·2H2O Molecular Weight: 400.29 MDL No.: MFCD00150612 …