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Key Documents

A4043

Sigma-Aldrich

Azure B

Dye content, ≥89%, certified by the Biological Stain Commission, powder

Synonym(s):

N,N,N′-Trimethylthionin, Azure I, Methyleneazure

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About This Item

Empirical Formula (Hill Notation):
C15H16ClN3S
CAS Number:
Molecular Weight:
305.83
Colour Index Number:
52010
Beilstein:
3922630
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

product name

Azure B, certified by the Biological Stain Commission

grade

certified by the Biological Stain Commission

Quality Level

form

powder

composition

Dye content, ≥89%

color

dark green

mp

205-210 °C (dec.) (lit.)

solubility

H2O: 1 mg/mL

fluorescence

λex 648 in ethanol

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

C[N+](C)=C(C=C1)C=C(C1=N2)SC3=C2C=CC(NC)=C3.[Cl-]

InChI

1S/C15H15N3S.ClH/c1-16-10-4-6-12-14(8-10)19-15-9-11(18(2)3)5-7-13(15)17-12;/h4-9H,1-3H3;1H

InChI key

DNDJEIWCTMMZBX-UHFFFAOYSA-N

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Application

Azure B has been used for the staining of chromosomes.

Biochem/physiol Actions

Azure B is a cationic dye. It is part of the Romanowsky stain, which is used for the staining of blood films. It is also used for the localization of nucleic acids.

Suitability

Certified for use in Lillie′s modified Nocht′s method for paraffin sections and the NCCLS method for blood smears.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

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

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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Nuclear DNA content, base composition, and cytogenetic characterization of Christia obcordata.
Sakhanokho HG and Islam-Faridi N
J. Am. Soc. Hort. Sci., 138, 205-209 (2013)
Bain BJ, et al.
Dacie and Lewis Practical Haematology (2016)
E Rosales et al.
Environmental science and pollution research international, 19(5), 1738-1746 (2011-12-14)
The aim of this work was to improve the ability of electro-Fenton technique for the remediation of wastewater contaminated with synthetic dyes using a model azo dye such as Azure B. Batch experiments were conducted to study the effects of
Luaine Bandounas et al.
New biotechnology, 30(2), 196-204 (2012-05-09)
In this study we have investigated the molecular background of the previously reported dye decolourization potential of Bacillus sp. LD003. Strain LD003 was previously isolated on Kraft lignin and was able to decolourize various lignin model dyes. Specifically Azure B
C J Kligora et al.
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 12(12), 1143-1147 (2000-01-05)
Distinguishing heavily pigmented melanocytes from melanophages on routine hematoxylin and eosin slides can be difficult. Melanin bleaching with potassium permanganate solution is a traditional means of removing melanin from tissues and can be used before immunohistochemical staining to remove any

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