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B1256

Sigma-Aldrich

Bromocresol Green sodium salt

crystalline

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Synonym(s):
3′,3″,5′,5″-Tetrabromo-m-cresolsulfonphthalein sodium salt
Empirical Formula (Hill Notation):
C21H13Br4NaO5S
CAS Number:
Molecular Weight:
720.00
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

agency

suitable for SM 2310
suitable for SM 2320

Quality Level

form

crystalline

visual transition interval

3.8-5.4, yellow to blue

mp

230 °C (dec.) (lit.)

solubility

H2O: 1 mg/mL

λmax

616 nm in H2O

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].Cc1c(Br)c(O)c(Br)cc1\C(=C2\C=C(Br)C(=O)C(Br)=C2C)c3ccccc3S([O-])(=O)=O

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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This Item
11436717470861006
Bromocresol Green sodium salt crystalline

B1256

Bromocresol Green sodium salt

Bromocresol Green sodium salt 90% (HPLC), ACS reagent, Dye content 90 %

114367

Bromocresol Green sodium salt

Bromocresol Green Sultone Form for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4)

17470

Bromocresol Green Sultone Form

Eosin B certified by the Biological Stain Commission, Dye content 90 %

861006

Eosin B

form

crystalline

form

powder or crystals

form

powder

form

powder

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

λmax

616 nm in H2O

λmax

-

λmax

-

λmax

395 nm, 514 nm

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

Application

Bromocresol Green sodium salt has been used as a pH indicator for glutamate decarboxylase activity assay in Listeria monocytogenes strains.

Biochem/physiol Actions

Bromocresol Green is mainly used for measuring serum albumin. In presence of 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 4.0) to blue color (5.4).

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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