o-Cresolphthalein, indicator
- Synonyms: 3,3-Bis(4-hydroxy-3-methylphenyl)-1(3H)-isobenzofuranone
- C22H18O4
- M = 346,38 g/mol
- CAS [596-27-0]
- EINECS-No.: 209-881-8
- Solub. in water: (20 ºC): slightly soluble
- Melting point: 223 - 225 ºC
- Tariff number: 2932 20 90 90
- Applications: laboratory reagent, indicator.
SPECIFICATIONS
pH range (colourless to red) : 8,2 - 9,8
insoluble in C2H5OH : passes test
Absorption maximum l (pH =11,3): 565 - 569 nm
Absorptivity (A1%/1 cm; l max.): >1500
related substances (TLC): passes test
- Synonyms: 3,3-Bis(4-hydroxy-3-methylphenyl)-1(3H)-isobenzofuranone - C22H18O4 - M = 346,38 g/mol - CAS [596-27-0] - EINECS-No.: 209-881-8 - Solub. in water: (20 ºC): slightly soluble - Melting point: 223 - 225 ºC - Tariff number: 2932 20 90 90 - Applications: laboratory reagent, indicator. SPECIFICATIONS pH range (colourless to red) : 8,2 - 9,8 insoluble in C2H5OH : passes test Absorption maximum l (pH =11,3): 565 - 569 nm Absorptivity (A1%/1 cm; l max.): >1500 related substances (TLC): passes test
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