Sudan II

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Structural formula
Structure of Sudan II
General
Surname Sudan II
other names
  • Sudan orange
  • CI 12140
  • CI Solvent Orange 7
  • 1- (2,4-dimethylphenylazo) -2-naphthol
  • 1- (o-xylylazo) -2-naphthol
Molecular formula C 18 H 16 N 2 O
Brief description

orange powder

External identifiers / databases
CAS number 3118-97-6
EC number 221-490-4
ECHA InfoCard 100.019.537
PubChem 5809936
Wikidata Q15098649
properties
Molar mass 276.34 g mol −1
Physical state

firmly

Melting point

156-158 ° C

safety instructions
GHS labeling of hazardous substances
08 - Dangerous to health 07 - Warning

danger

H and P phrases H: 351-315-319-335
P: 201-261-280-281-305 + 351 + 338-304 + 340-362-312-405-501
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Sudan II is a synthetically produced, orange-colored azo dye from the group of Sudan dyes . It can be produced by azo coupling of diazotized 2,4-dimethylaniline with 2-naphthol .

Individual evidence

  1. ↑ a b c d Datasheet Sudan II at AlfaAesar, accessed on November 8, 2016 ( PDF )(JavaScript required) .

Web links

Commons : Sudan Dyes  - Collection of Images, Videos, and Audio Files