3',3'',5',5''-Tetrabromophenolphthalein ethyl ester, indicator CAS 1176-74-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1176-74-5
Molecular FormulaC22H14Br4O4
Molecular Weight661.96 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3',3'',5',5''-Tetrabromophenolphthalein ethyl ester, indicator CAS 1176-74-5 chemical structure

Description

3',3'',5',5''-Tetrabromophenolphthalein ethyl ester, indicator (CAS 1176-74-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C22H14Br4O4. Molecular weight: 661.96 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC22H14Br4O4
Molecular Weight661.96 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentBr-containing

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