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Sudan IV

Product name	Sudan IV
Alias	C.I. 26105; C.I. 258; C.I. Solvent Red 24; C.I. Solvent Red 24 (8CI); Scarlet red [NF X]; 1-[2-Methyl-4-(2-methylphenylazo)phenylazo]-2-naphthol; Lipid crimson; Scarlet Red; Solvent Red 24; scarlet R; 1-(2-methyl-4-(2-methylphenylazo)phenylazo)-2-naphthol; 1-((2-Methyl-4-((2-methylphenyl)azo)phenyl)azo)-2-naphthalenol; 1-((4-(o-tolylazo)-o-tolyl)azo)-2-naphtho; 1-((E)-(2-Methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl)diazenyl)-2-naphth; 1-(4-(o-Tolylazo)-o-tolylazo)-2-naphthol; 1-(4-o-tolylazo-o-tolylazo)-2-naphthol; 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-naphthaleno; 2',3-Dimethyl-4-(2-hydroxynaphthylazo)azobenzene; (1Z)-1-({2-methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}hydrazono)naphthalen-2(1H)-one; 1-({2-methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}hydrazono)naphthalen-2(1H)-one; 1-[(E)-{2-methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}diazenyl]naphthalen-2-ol; Solvent Red 24
English name	Sudan IV
Alias	C.I. 26105; C.I. 258; C.I. Solvent Red 24; C.I. Solvent Red 24 (8CI); Scarlet red [NF X]; 1-[2-Methyl-4-(2-methylphenylazo)phenylazo]-2-naphthol; Lipid crimson; Scarlet Red; Solvent Red 24; scarlet R; 1-(2-methyl-4-(2-methylphenylazo)phenylazo)-2-naphthol; 1-((2-Methyl-4-((2-methylphenyl)azo)phenyl)azo)-2-naphthalenol; 1-((4-(o-tolylazo)-o-tolyl)azo)-2-naphtho; 1-((E)-(2-Methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl)diazenyl)-2-naphth; 1-(4-(o-Tolylazo)-o-tolylazo)-2-naphthol; 1-(4-o-tolylazo-o-tolylazo)-2-naphthol; 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-naphthaleno; 2',3-Dimethyl-4-(2-hydroxynaphthylazo)azobenzene; (1Z)-1-({2-methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}hydrazono)naphthalen-2(1H)-one; 1-({2-methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}hydrazono)naphthalen-2(1H)-one; 1-[(E)-{2-methyl-4-[(E)-(2-methylphenyl)diazenyl]phenyl}diazenyl]naphthalen-2-ol; Solvent Red 24
CAS RN	85-83-6
EINECS No.	201-635-8
Molecular formula	C24H20N4O
Molecular weight	380.4418
Molecular structure
Density	1.192g/cm3
Melting point	199℃
Boiling point	618.845°C at 760 mmHg
Flash point	424.365°C
Vapor pressure	0mmHg at 25°C
Properties	Dark red powder. Melting point184～185℃. Insoluble in water, soluble in ethyl alcohol and acetone, easily soluble in benzene.
Uses	In grease, water, soap, wax, rubber toys, and plastic products.

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