Sudan III

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Structural formula
Structure of Sudan III
General
Surname Sudan III
other names
  • 1- [4- (phenylazo) phenylazo] -2-naphthol
  • Sudan red
  • Ceres red
  • CI 26100
  • CI Solvent Red 23
Molecular formula C 22 H 16 N 4 O
Brief description

dark red odorless powder

External identifiers / databases
CAS number 85-86-9
EC number 201-638-4
ECHA InfoCard 100.001.490
PubChem 5809667
Wikidata Q1187765
properties
Molar mass 352.40 g mol −1
Physical state

firmly

Melting point

199 ° C (decomposition)

solubility

practically insoluble in water

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Sudan III is a synthetically produced chemical compound from the group of azo and Sudan dyes with a red color.

safety instructions

The "International Agency for Research on Cancer" (IARC) classifies the dyes Sudan I – IV and Sudan Red 7B as Category 3 cancerogens. Category 3 substances give cause for concern because of their possible carcinogenic effects in humans, but cannot be conclusively assessed due to insufficient information.

Individual evidence

  1. ↑ a b c d e Entry on Sudan III in the GESTIS substance database of the IFA , accessed on November 8, 2016(JavaScript required) .
  2. ↑ lci-koeln.de: LCI - Prohibited SUDAN DYES in Food - “Counterfeiters” at work , accessed on November 9, 2016.

Web links

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