Eosin methylene blue, according to Wright

- Synonyms: Wright's eosin methylene blue - CAS [68988-92-1] - EINECS-No.: 273-541-5 - Solub. in water: (20 ºC): insoluble - LD 50 (oral, rat): 1180 mg/kg (toxic component) - Tariff number: 3204 19 00 90 - Applications: analytical chemistry, for spectrophotometric determinations (for determination of: silver), for biology, indicator, microscopy. SPECIFICATIONS pH (0,01 %, methanol , 50 %): 6 - 7 Absorption maximum l1 (in methanol): 648 - 651 nm Absorption maximum l2 (in methanol): 521 - 524 nm Absorptivity (A1%/1 cm; l1, methanol, referred to dried sample): 1200 - 1400 Absorptivity (A1%/1 cm; l2; methanol, referred to dried sample): 650 - 850 loss on drying (105 ºC): max. 10 % suitability for microscopy: passes test TLC test: passes test