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ChemicalBook--->CAS DataBase List--->6227-02-7

6227-02-7

6227-02-7 Structure

6227-02-7 Structure
IdentificationBack Directory
[Name]

Direct Red 16
[CAS]

6227-02-7
[Synonyms]

C.I.27680
Einecs 228-323-4
C.I.Direct Red 16
MMFAIRVIRUMWLM-DBHLKOEUSA-L
C.I.Direct Red 16:C.I.27680
C.I. Direct red 16, disodium salt
Disodium 7-amino-4-hydroxy-3-((5-hydroxy-6-(phenylazo)-7-sulphonato-2-naphthyl)azo)naphthalene-2-sulphonate
7-Amino-4-hydroxy-3-[[5-hydroxy-6-(phenylazo)-7-sulfo-2-naphtyl]azo]-2-naphthalenesulfonic acid disodium salt
2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-5-hydroxy-6-(phenylazo)-7-sulfo-2-naphthalenylazo-, disodium salt
7-Amino-4-hydroxy-3-[[5-hydroxy-6-(phenylazo)-7-sulfo-2-naphthalenyl]azo]-2-naphthalenesulfonic acid disodium salt
disodium,(3Z)-7-amino-4-oxo-3-[[(6E)-5-oxo-6-(phenylhydrazinylidene)-7-sulfonatonaphthalen-2-yl]hydrazinylidene]naphthalene-2-sulfonate
2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-(2-(5-hydroxy-6-(2-phenyldiazenyl)-7-sulfo-2-naphthalenyl)diazenyl)-, sodium salt (1:2)
[EINECS(EC#)]

228-323-4
[Molecular Formula]

C26H20N5NaO8S2
[MDL Number]

MFCD00071860
[MOL File]

6227-02-7.mol
[Molecular Weight]

617.58
Chemical PropertiesBack Directory
[Boiling point ]

1099.06℃[at 101 325 Pa]
[density ]

1.683[at 20℃]
[vapor pressure ]

0Pa at 25℃
[Water Solubility ]

3.93g/L at 20℃
[LogP]

-1.508 at 20℃
[EPA Substance Registry System]

C.I. Direct Red 16, disodium salt (6227-02-7)
Hazard InformationBack Directory
[Uses]

C.I. Direct red 16 is a good dyeing agent for cotton fabrics.
[Preparation]

aniline diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupled its product to diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.
[Flammability and Explosibility]

Nonflammable
[Properties and Applications]

red. Soluble in water for product red, slightly soluble in ethanol peach pink, insoluble in other organic solvents. The strong sulfuric acid for blue, red to orange diluted to brown, and a red precipitate.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 3-4 2 1-2 1
AATCC 4 3 1-2 1 1
[References]

[1] Sawada K, Ueda M. Adsorption behavior of direct dye on cotton in non-aqueous media[J]. Dyes and pigments, 2003, 58(1): 37-40.
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