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201871

Sigma-Aldrich

Direct yellow 27

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Empirical Formula (Hill Notation):
C25H20N4Na2O9S3
CAS Number:
Molecular Weight:
662.62
Colour Index Number:
13950
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

form

powder

Quality Level

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

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This Item
21240736554822680
Direct yellow 27

Sigma-Aldrich

201871

Direct yellow 27

Direct Blue 71 Dye content 50 %

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212407

Direct Blue 71

Direct Red 80 Dye content 25 %

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365548

Direct Red 80

Quinoline Yellow for microscopy (Hist.), mixture of mono- and disulfonic acid sodium salt

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22680

Quinoline Yellow

λmax

393 nm

λmax

594 nm

λmax

528 nm

λmax

-

ε (extinction coefficient)

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

ε (extinction coefficient)

≥15000 at 283-289 nm in water at 0.01 g/L, ≥30000 at 582-588 nm in water at 0.01 g/L

ε (extinction coefficient)

≥12000 at 277-283 nm in H2O, ≥15000 at 223-235 nm in H2O, ≥32000 at 524-530 nm in H2O

ε (extinction coefficient)

-

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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