- Synonyms: 2,3-Dihydro-2,2-dimethyl-6-[[4-(phenylazo)-1-naphthalenyl]azo]-1H-perimidine, SBB - C29H24N6 - M = 456,55 g/mol - CAS [4197-25-5] - EINECS-No.: 224-087-1 - Solub. in water: (20 ºC): insoluble - Melting point: 150 - 154 ºC - LD 50 (oral, rat): > 15000 mg/kg - Tariff number: 3204 19 00 90 - Applications: indicator, microscopy, in the textile industry. SPECIFICATIONS Absorption maximum l (in ethanol) : 596 - 605 nm Absorptivity (A1%/1 cm; l max.): 390 - 670 loss on drying (105 ºC): max. 1 %