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Key Documents

Safety Information

17492

Sigma-Aldrich

Bromocresol Purple sodium salt

indicator (pH 5.2-6.8)

Synonym(s):

5′,5″-Dibromo-o-cresolsulfonphthalein sodium salt

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About This Item

Empirical Formula (Hill Notation):
C21H15Br2NaO5S
CAS Number:
Molecular Weight:
562.20
EC Number:
MDL number:
UNSPSC Code:
12171500

grade

indicator (pH 5.2-6.8)

technique(s)

titration: suitable

mp

255 °C (dec.) (lit.)

solubility

H2O: soluble

SMILES string

[Na+].Cc1cc(cc(Br)c1O)C2(OS(=O)(=O)c3ccccc23)c4cc(C)c([O-])c(Br)c4

InChI

1S/C21H16Br2O5S.Na/c1-11-7-13(9-16(22)19(11)24)21(14-8-12(2)20(25)17(23)10-14)15-5-3-4-6-18(15)29(26,27)28-21;/h3-10,24-25H,1-2H3;/q;+1/p-1

InChI key

WNOIORUCCYNQPE-UHFFFAOYSA-M

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