Phenolphthalein, indicator, ACS
- C20H14O4
- M = 318,33 g/mol
- CAS [77-09-8]
- EINECS-No.: 201-004-7
- Solub. in water: (20 ºC): insoluble
- Melting point: 261 - 263 ºC
- GHS-signal word: Danger
- GHS-H sentences: H350 - H341 - H361f
- GHS-P sentences: P280 - P201 - P202 - P308+P313 - P405 - P501a
- Tariff number: 2932 20 10 00
- Applications: analytical chemistry, laboratory reagent, indicator, in the pharmaceutics industry (laxative).
SPECIFICATIONS
pH range (colourless to violet-red) : 8 - 10
Absorption maximum l (pH 9,8): 551 - 554 nm
Absorptivity (A1%/1 cm; l max; pH 9,8 on dried sample): 500 - 600
clarity of alcohol solution: passes test
loss on drying (110 ºC): max. 1 %
- Synonyms: 3,3-Bis(p-hydroxyphenyl)phthalide
- C20H14O4
- M = 318,33 g/mol
- CAS [77-09-8]
- EINECS-No.: 201-004-7
- Solub. in water: (20 ºC): insoluble
- Melting point: 261 - 263 ºC
- GHS-signal word: Danger
- GHS-H sentences: H350 - H341 - H361f
- GHS-P sentences: P280 - P201 - P202 - P308+P313 - P405 - P501a
- Tariff number: 2932 20 10 00
- Applications: analytical chemistry, laboratory reagent, indicator, in the pharmaceutics industry (laxative).
SPECIFICATIONS
pH range (colourless to violet-red) : 8 - 10
Absorption maximum l (pH 9,8): 551 - 554 nm
Absorptivity (A1%/1 cm; l max; pH 9,8 on dried sample): 500 - 600
clarity of alcohol solution: passes test
loss on drying (110 ºC): max. 1 %
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