Re: sudan red

Mikko schrieb:
> Hi there,
> does anybody know if there is a differece between sudan red, sudan 1
> or sudan red 1, respectively german sudanrot? i found at lest these
> three names.
> where can one find more information about toxicology, chemical formula
> and especially legal use?

Uses:
* fat soluble dyes
* marking of gasoline, diesel, lubricating grease
* polymer dye
* dye for food (chili)
* dye for tattoos

Sudan I = Sudanrot
1-[(2,4-dimethylphenyl)azo]-2-Naphthalenol
C18H16N2O
CAS Registry Number: 3118-97-6

Solvent Red 1= Sudan red G
CAS 1229-55-6

Sudan II = Sudan Orange
1-(phenylazo)-2-Naphthol
C16H12N2O
CAS 842-07-9

Sudan III = SOLVENT RED 23
C22H16N4O
1-(4-Phenylazophenylazo)-2-naphthol
CAS 85-86-9

Sudan IV = Solvent red 24
C24H20N4O
C.I. Nr. 26105
CAS 85-83-6

Best regards

Christian