Methylthymol blue, tetrasodium salt, indicator
- Synonyms: MTB; 3,3'-Bis[N,N-di(carboxymethyl)aminomethyl]thymolsulfonephthalein, sodium salt
- C37H40N2Na4O13S
- M = 844,76 g/mol
- CAS [1945-77-3]
- EINECS-No.: 217-743-3
- Solub. in water: (20 ºC): ~ 460 g/l
- Tariff number: 2934 99 90 90
- Applications: analytical chemistry, indicator, titrant in volumetric analysis (metals).
SPECIFICATIONS
Absorption maximum l (in ethanol) : 430 - 440 nm
Absorptivity (A1%/1 cm; l max.): 90 - 110
insoluble in water: passes test
suitability as indicator : passes test
loss on drying : max. 7 %
- Synonyms: MTB; 3,3'-Bis[N,N-di(carboxymethyl)aminomethyl]thymolsulfonephthalein, sodium salt - C37H40N2Na4O13S - M = 844,76 g/mol - CAS [1945-77-3] - EINECS-No.: 217-743-3 - Solub. in water: (20 ºC): ~ 460 g/l - Tariff number: 2934 99 90 90 - Applications: analytical chemistry, indicator, titrant in volumetric analysis (metals). SPECIFICATIONS Absorption maximum l (in ethanol) : 430 - 440 nm Absorptivity (A1%/1 cm; l max.): 90 - 110 insoluble in water: passes test suitability as indicator : passes test loss on drying : max. 7 %
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