dye|World dye variety

Name:C.I.Food Yellow 4:1,C.I.19140:1

Molecular Structure: Single azo class

C.I.Food Yellow 4:1,C.I.19140:1,CAS 12225-21-7,C16H12N4O9S2,468.42

Molecular Formula:C₁₆H₁₂N₄O₉S₂

Molecular Weight: 468.42

CAS Registry Number:12225-21-7

Manufacturing Methods :  4-Aminobenzenesulfonic acid diazo, and 5-Oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid coupled into aluminum salt deposit into color.

Properties and Applications: yellow. Yellow fine powder. Hardly soluble in water, oil and most organic solvents, but can be scattered, mixed with water, oil and other liquid and solid powder. Heat resistance, resistance to light sex, oil resistance, salt tolerance, C.I. Food Yellow 4 better than sex. The product is made of a certain amount of HCL again with phosphoric acid potassium hydrogen two solution diluted, the maximum absorption wavelength for 428 + 2 nm.

List of Suppliers:

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FD&C Yellow 5 lake ( Simpsons (UK) Ltd )

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FD&C Yellow No.5 Al Lake( BASF Aktiengesellschaft )

FD&C Yellow No.5 Aluminium Lake( Warner-Jenkinson Co )

FD&C Yellow No.5 Aluminium Lake 12006 ( Anstead International )

FD&C Yellow No.5 Aluminium Lake 12009( Anstead International )

FD&C Yellow No.5 Aluminium Lake 90116 ( Anstead International )

Neelilake Tartrazine( Neelikon Food Dyes and Chemicals Ltd )

San-Ei Gen Food Yellow No. 4 Aluminium L ( Kaseihin Kogyo Kyokai )

Simlake Tartrazine ( Simpsons (UK) Ltd )

Sunset Yellow Aluminium Lake 15005( Anstead International )

Tartrazine Aluminium Lake 11008 ( Anstead International )

Tartrazine Aluminium Lake 15002 ( Anstead International )

Tartrazine Aluminium Lake 90116 ( Anstead International )

Tartrazine Lake ( Warner-Jenkinson Co )

TartrazineAluminium Lake 12009( Anstead International )

Tetrazine lake( Sharda International )