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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:
1667-99-8
Molecular Weight:
605.28
Colour Index Number:
43825
Beilstein:
4110655
EC Number:
216-787-0
MDL number:
MFCD00001615
UNSPSC Code:
12171500
PubChem Substance ID:
24851923
NACRES:
NA.47

form

powder

Quality Level

100

composition

Dye content, 45%

color

dark brown

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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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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Use of chrome azurol S reagents to evaluate siderophore production by rhizosphere bacteria
Alexander
Biology and Fertility of Soils, 12, 39-45 (1991)
Wissal Elhaissoufi et al.
Frontiers in plant science, 11, 979-979 (2020-08-09)
Limited P availability in several agricultural areas is one of the key challenges facing current agriculture. Exploiting P-solubilizing bacteria (PSB) has been an emerging bio-solution for a higher rhizosphere P-availability, meanwhile the above- and below-ground interactions that PSB would trigger
Savitree Limtong et al.
Microorganisms, 8(5) (2020-05-06)
Seedling rot disease in rice leads to significant loss in the production of seedlings. This research was conducted to explore yeasts that could be used as biological control agents against rice seedling rot disease caused by Curvularia lunata and Helminthosporium
Natalie Niessen et al.
Biomolecules, 10(7) (2020-07-28)
Iron is part of many redox and other enzymes and, thus, it is essential for all living beings. Many oxic environments have extremely low concentrations of free iron. Therefore, many prokaryotic species evolved siderophores, i.e., small organic molecules that complex
Gabriele Sass et al.
PloS one, 14(5), e0216085-e0216085 (2019-05-09)
Pseudomonas aeruginosa and Aspergillus fumigatus are pathogens frequently co-inhabiting immunocompromised patient airways, particularly in people with cystic fibrosis. Both microbes depend on the availability of iron, and compete for iron in their microenvironment. We showed previously that the P. aeruginosa
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