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201871

Sigma-Aldrich

Direct yellow 27

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Empirical Formula (Hill Notation):
C25H20N4Na2O9S3
CAS Number:
10190-68-8
Molecular Weight:
662.62
Colour Index Number:
13950
EC Number:
233-461-3
MDL number:
MFCD00005778
UNSPSC Code:
12171500
PubChem Substance ID:
24852026
NACRES:
NA.47

form

powder

Quality Level

100

λmax

393 nm

ε (extinction coefficient)

53000-57000 at 224-230 nm in water at 0.02 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].COc1ccccc1NC(=O)C(\N=N\c2ccc(cc2S([O-])(=O)=O)-c3nc4ccc(C)c(c4s3)S([O-])(=O)=O)=C(/C)O

InChI

1S/C25H22N4O9S3.2Na/c1-13-8-10-18-22(23(13)41(35,36)37)39-25(27-18)15-9-11-17(20(12-15)40(32,33)34)28-29-21(14(2)30)24(31)26-16-6-4-5-7-19(16)38-3;;/h4-12,30H,1-3H3,(H,26,31)(H,32,33,34)(H,35,36,37);;/q;2*+1/p-2/b21-14-,29-28+;;

InChI key

VHKQQPDOJAIOKS-NOBNIHJLSA-L

Related Categories

General description

As a direct dye, Direct Yellow 27 is an acid dye with large molecules that will bind to cellulose fibers directly. It is mono azo dye with good light fastness.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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