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212350

Sigma-Aldrich

Chlorazol fast pink BK

Dye content 30 %

Synonym(s):

Benzo Fast Pink 2BL, Direct Red 75, Sirius Rose BB

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About This Item

Empirical Formula (Hill Notation):
C33H22N8Na4O15S4
CAS Number:
2829-43-8
Molecular Weight:
990.79
Colour Index Number:
25380
EC Number:
220-593-1
MDL number:
MFCD00004117
UNSPSC Code:
12171500
PubChem Substance ID:
24852729

composition

Dye content, 30%

λmax

522 nm

SMILES string

[Na+].[Na+].[Na+].[Na+].Nc1ccc2cc(cc(O)c2c1N=Nc3ccc(NC(=O)Nc4ccc(N=Nc5c(N)ccc6cc(cc(O)c56)S([O-])(=O)=O)c(c4)S([O-])(=O)=O)cc3S([O-])(=O)=O)S([O-])(=O)=O

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Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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N S Doherty
Clinical and experimental immunology, 43(2), 260-269 (1981-02-01)
Chlorazole fast pink 2BL inhibited the classical complement pathway in rat serum both in vivo and in vitro. The in vitro potency of chlorazole fast pink against the alternative pathway could not be assessed accurately but it was clearly less
W J Fuggle et al.
Journal of clinical pathology, 37(3), 267-271 (1984-03-01)
Eosinophil polymorphonuclear leucocytes (polymorphs) were counted in 45 specimens from patients with Hodgkin's disease and five specimens from patients with reactive follicular hyperplasia. The use of chlorazol fast pink BK, a little known stain for eosinophil polymorphs, combined with image

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