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M1782

Sigma-Aldrich

Chromeazurol B

Synonym(s):

Chrome Azurol B, Eriochrome® Azurol B, Mordant blue 1

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About This Item

Empirical Formula (Hill Notation):
C23H14Cl2Na2O6
CAS Number:
1796-92-5
Molecular Weight:
503.24
Colour Index Number:
43830
Beilstein:
4101148
EC Number:
217-279-1
MDL number:
MFCD00036446
UNSPSC Code:
12171500
PubChem Substance ID:
24896692
NACRES:
NA.47

form

powder

Quality Level

200

composition

Dye content, ~60%

solubility

water: 1 mg/mL, slightly hazy, orange

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].Cc1cc(cc(C([O-])=O)c1O)\C(=C2\C=C(C)C(=O)C(=C2)C([O-])=O)c3c(Cl)cccc3Cl

InChI

1S/C23H16Cl2O6.2Na/c1-10-6-12(8-14(20(10)26)22(28)29)18(19-16(24)4-3-5-17(19)25)13-7-11(2)21(27)15(9-13)23(30)31;;/h3-9,26H,1-2H3,(H,28,29)(H,30,31);;/q;2*+1/p-2/b18-13+;;

InChI key

JROAZQFKSSYEBL-YWABOPJLSA-L

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General description

Chromeazurol B is a dye, belonging to the class of triphenylmethanes.

Application

Chromeazurol B may be used as a synthetic dye in the determination of trace levels of uranium in water samples using spectrophotometric technique.

Legal Information

Eriochrome is a registered trademark of Huntsman Petrochemical, LLC

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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Certificates of Analysis (COA)

Lot/Batch Number
060H08951
050H06511
041H0378

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M Paris et al.
Annales de biologie clinique, 44(5), 511-516 (1986-01-01)
The authors describe a manual method for the direct assay of iron in human serum using the ammonium salt of Chromazurol B. This new chromogen reacts with ferric or ferrous ions and cetyltrimethylammonium bromide giving a purple ternary complex. Reliability
The reduction mechanism at the mercury electrode in neutral and alkaline aqueous media of an hydroxytriphenylmethane dye: Eriochrome Azurol B.
Boodts C F J, et al.
J. Electroanal. Chem. Interfac. Electrochem., 139(1), 143-156 (1982)
G Brivio et al.
La Ricerca in clinica e in laboratorio, 16(4), 523-532 (1986-10-01)
A highly sensitive monoreagent for the determination of iron and total iron-binding capacity (TIBC) in serum is described in this paper. It contains the dye chromazurol B which gives with iron a high molar absorption complex (A630nm = 1.6 X
S A Romanski et al.
Mayo Clinic proceedings, 68(5), 419-426 (1993-05-01)
We compared the sensitivity of aurin tricarboxylic acid (ATA) or acid solochrome azurine (ASA) for detecting bone aluminum histochemically in 87 biopsy specimens obtained between 1983 and 1987 from 84 patients receiving dialysis therapy. Two consecutive biopsy sections were stained
An improved, highly sensitive method for the determination of serum iron using chromazurol B.
A Tabacco et al.
Clinica chimica acta; international journal of clinical chemistry, 114(2-3), 287-290 (1981-08-10)
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