Bromothymol Blue CAS 76-59-5

CAS: 76-59-5

Molecular Formula: C27H28Br2O5S

Molecular Weight: 624.38

EINECS: 200-971-2

Synonyms: BromothymolBlueIndicatorGr; BromothymolBlue,ACS; BROMOTHYMOL BLUE SOLUTION; BROMOTHYMOL BLUE SULTONE FORM; BROMOTHYMOL BLUE INDICATOR; BROMOTHYMOL BLUE (BTB); Bromothymol Blue, indicator, pure; BROMOTHYMOLBLUE,REAGENT,ACS

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What is Bromothymol Blue CAS 76-59-5?

Bromothymol Blue is an acid-base indicator with a color change range of pH 6.0 (yellow) to 7.6 (blue). Ordinary water is neutral with a pH of around 7 and appears light green.

Specification

Item	Specification
λmax	420nm, 435nm, 620nm
Density	1.4668 (estimate)
Melting point	200-202 °C (lit.)
flash point	38 °C
pKa	7.0, 7.1(at 25℃)
PH	6.0～7.6

Application

Bromothymol Blue is used as an acid-base indicator, with a pH color change range of 6.0 (yellow) -7.6 (blue). Adsorption indicator. Bromothymol blue is a pH indicator for weak acids and weak bases, used as an acid-base indicator and chromatographic reagent in analytical chemistry; It can also be used as a dye and metabolic product.