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Merck
CN

318701

Bromocresol Green sodium salt solution

0.04 wt. % in H2O

Synonym(s):

3′,3′′,5′,5′′-Tetrabromo-m-cresolsulfonephthalein sodium salt

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About This Item

Empirical Formula (Hill Notation):
C21H13Br4NaO5S
CAS Number:
62625-32-5
Molecular Weight:
720.00
NACRES:
NA.47
PubChem Substance ID:
24859141
UNSPSC Code:
12171500
MDL number:
MFCD00148898

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InChI

1S/C21H14Br4O5S.Na/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;/q;+1/p-1

SMILES string

[Na+].Cc1c(Br)c(O)c(Br)cc1C2(OS(=O)(=O)c3ccccc23)c4cc(Br)c([O-])c(Br)c4C

InChI key

HEFSGAHJDGZCHA-UHFFFAOYSA-M

form

liquid

concentration

0.04 wt. % in H2O

visual transition interval

3.8-5.4, yellow to blue

density

0.981 g/mL at 25 °C

λmax

612 nm

ε (extinction coefficient)

≥10000 at 306-312 nm, ≥8000 at 397-403 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

100

Related Categories

Biochem/physiol Actions

Bromocresol green is a sulfonephthalein dye. It is mainly used for measuring serum albumin. In acidic conditions, bromocresol green interacts with albumin, thereby resulting in an increase in absorbance at 630nm. The change in absorbance is linked with the concentration of albumin. Bromocresol Green is also a pH indicator, changing from yellow (pH 3.8) to blue color (5.4). It is widely used as a colloidal pigment.

Storage Class

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS6761
SHBR8209
MKCJ6489
MKBW7845V
MKBS8430V

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