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Merck
CN

201871

Direct yellow 27

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About This Item

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

Key Documents

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InChI key

VHKQQPDOJAIOKS-NOBNIHJLSA-L

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+;;

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

form

powder

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

Quality Level

100

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.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
0033187

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