Pyrogallol red, indicator for metal titration

- Synonyms: Pyrogallolsulfonphthalein, Pyrogallic acid
- C19H12O8S
- M = 400,36 g/mol
- CAS [32638-88-3]
- EINECS-No.: 251-134-3
- Solub. in water: (20 ºC): soluble
- Tariff number: 2934 99 90 90
- Applications: analytical chemistry, indicator (metals).

SPECIFICATIONS

titration : passes test
loss on drying (110 ºC): max. 5 %