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199532

Sigma-Aldrich

Chromeazurol S

Dye content 45 %

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Synonym(s):
Chrome Azurol S, Mordant Blue 29
Empirical Formula (Hill Notation):
C23H13Cl2Na3O9S
CAS Number:
Molecular Weight:
605.28
Colour Index Number:
43825
Beilstein:
4110655
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

form

powder

composition

Dye content, 45%

solubility

water: 0.1%

λmax

458 nm

ε (extinction coefficient)

≥9000 at 424-436 nm in H2O at 0.03 g/L
≥9000 at 424-436 nm in H2O

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].[Na+].Cc1cc(cc(C([O-])=O)c1O)C(=C2/C=C(C)C(=O)C(=C2)C([O-])=O)\c3c(Cl)ccc(c3Cl)S([O-])(=O)=O

InChI

1S/C23H16Cl2O9S.3Na/c1-9-5-11(7-13(20(9)26)22(28)29)17(12-6-10(2)21(27)14(8-12)23(30)31)18-15(24)3-4-16(19(18)25)35(32,33)34;;;/h3-8,26H,1-2H3,(H,28,29)(H,30,31)(H,32,33,34);;;/q;3*+1/p-3/b17-12-;;;

InChI key

FUIZKNBTOOKONL-NDOZRWCBSA-K

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1 of 4

This Item
M1782R8001B0149
Chromeazurol S Dye content 45 %

Sigma-Aldrich

199532

Chromeazurol S

Chromeazurol B

Sigma-Aldrich

M1782

Chromeazurol B

Brilliant Blue R Dye content ~50 %, Technical grade

Sigma-Aldrich

B0149

Brilliant Blue R

composition

Dye content, 45%

composition

Dye content, ~60%

composition

Dye content, ~50%

composition

Dye content, ~50%

solubility

water: 0.1%

solubility

water: 1 mg/mL, slightly hazy, orange

solubility

water: 1 mg/mL, blue

solubility

H2O: 10 mg/mL

λmax

458 nm

λmax

-

λmax

-

λmax

-

ε (extinction coefficient)

≥9000 at 424-436 nm in H2O at 0.03 g/L

ε (extinction coefficient)

-

ε (extinction coefficient)

-

ε (extinction coefficient)

-

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

General description

Chromeazurol S is a hydrophilic anion. It is also known as Mordant Blue 29 (C.l. 43825) and Chrome Azurol S.

Application

Chromeazurol S has been used to evaluate siderophore production by rhizosphere bacteria.
Reagent for determination of fluoride

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

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