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Bacteria Screening Medium 523



Bromothymol Blue, Sodium Salt

Product ID: B1714

Availability: In stock

Package Size Price Qty
10 g
25 g


Bromothymol blue (BTB) is often used in electrophoresis to estimate the mobility of the electrophoretic front.

BTB is also a biological stain and pH indicator; yellow at pH 6.0, green at pH 7.0, and blue at pH 7.6.

Synonyms: BTB; 3′,3′′-dibromothymolsulfonephthalein sodium salt; Bromothymol Blue sodium salt; Bromothymol Sulfone Phthalein

Solubility Water
Physical Form Solid
Storage Temp. Room Temperature
UPC / SKU B1714
CAS NUMBER 34722-90-2
Formula Weight 646.37
Formula C27H27Br2O5SNa
Synonyms BTB; 3′,3′′-dibromothymolsulfonephthalein sodium salt; Bromthymol Blue sodium salt; Bromothymol Sulfone Phthalein
Storage Temp. Room Temperature
HTS - Tariff Code 2914.70.4000
Tariff Code 2914.70.4000
Risk Info (R) 38-41
Safety Info (S) 22-36/37/39