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Bromocresol green, indicator

- Synonyms: 3,3',5,5'-Tetrabromo-m-cresolsulfonphthalein, BCG
- C21H14Br4O5S
- M = 698,04 g/mol
- CAS [76-60-8]
- EINECS-No.: 200-972-8
- Tariff number: 2934 99 90 90
- Applications: analytical chemistry, indicator.

SPECIFICATIONS
pH range (yellow to blue): 3,8 - 5,4
Absorption maximum l1 (pH 3,5): 444 - 445 nm
Absorption maximum l2 (pH 5,4): 615 - 618 nm
Absorptivity (A1%/1 cm; l1, pH 3,5; on dried sample): 265 - 275
Absorptivity (A1%/1 cm; l2, pH 5,4; on dried sample): 530 - 570
loss on drying (110 ºC): max. 5 %

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