Bromothymol blue, Hi-Cert /ACS, 5 gram

Product Identifier

CAS No. : 76-59-5

EC No. : 200-971-2

Molecular Formula : CHBrOS

Molecular Weight : 624.38

Synonym : 3',3''-Dibromothymolsulfonphthalein

HS Code : 2934 99 00

Storage : Below 30C

Shelf life : 4 years

Technical Specification

Appearance : Light pink to brown or purple or buff crystals or powder

Solubility : 20 ppm in ethanol yields clear solution

Visual pH Transition : pH 5.80 (yellow) to pH 7.60 (blue)

Absorption maxima 1 : 428 - 438 nm (20 ppm in pH 5.80 buffer solution)

Absorption maxima 2 : 611 - 621 nm (20 ppm in pH 7.60 buffer solution)

Specific Absorbance 1 : 260 - 300 (20 ppm in pH 5.80 buffer solution, at 433 nm)

Specific Absorbance 2 : 470 - 520 (20 ppm in pH 7.60 buffer solution, at 616 nm)

Loss on drying (at 110C, 1 hr) : <= 3.00%

Note :

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Bromothymol blue, Hi-Cert /ACS, 5 gram

Bromothymol blue, Hi-Cert /ACS, 5 gram

Rp 337.239

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