Merck
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114359

Sigma-Aldrich

Bromocresol Green

ACS reagent, Dye content 95 %

Empirical Formula (Hill Notation):
C21H14Br4O5S
CAS Number:
Molecular Weight:
698.01
Beilstein:
372527
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

grade

ACS reagent

Quality Level

assay

≥95%

form

powder

composition

Dye content, 95%

visual transition interval

3.8-5.4, yellow to blue(passes test)

mp

225 °C (dec.) (lit.)

λmax

423 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Cc1c(Br)c(O)c(Br)cc1C2(OS(=O)(=O)c3ccccc23)c4cc(Br)c(O)c(Br)c4C

InChI

1S/C21H14Br4O5S/c1-9-12(7-14(22)19(26)17(9)24)21(13-8-15(23)20(27)18(25)10(13)2)11-5-3-4-6-16(11)31(28,29)30-21/h3-8,26-27H,1-2H3

InChI key

FRPHFZCDPYBUAU-UHFFFAOYSA-N

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Application

Bromocresol Green (BCG) is a pH sensitive triphenylmethane dye useful in a variety of colorimetric detection technologies. BCG is used as a tracking dye for DNA agarose gel electrophoresis, in protein determinations and in charge-transfer complexation processes. In TLC BCG is used for visualisation of the compounds with functional groups whose pKa is below 5.0.

Packaging

5, 25 g in glass bottle

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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