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MilliporeSigma

318701

Sigma-Aldrich

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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500 ML
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Estimated to ship onJuly 18, 2025Details


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500 ML
$69.00

About This Item

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

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$69.00


Estimated to ship onJuly 18, 2025Details


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Technical Service
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form

liquid

Quality Level

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

SMILES string

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

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

InChI key

HEFSGAHJDGZCHA-UHFFFAOYSA-M

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1 of 4

This Item
B1256114367318744
concentration

0.04 wt. % in H2O

concentration

-

concentration

-

concentration

0.04 wt. % in H2O

form

liquid

form

crystalline

form

powder or crystals

form

liquid

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

density

0.981 g/mL at 25 °C

density

-

density

-

density

0.985 g/mL at 25 °C

Biochem/physiol Actions

Bromocresol green is a sulfonephthalein dye.[1] 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.[2] Bromocresol Green is also a pH indicator, changing from yellow (pH 3.8) to blue color (5.4).[3] It is widely used as a colloidal pigment.[1]

Storage Class

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable


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