Ponceau 3R

Synonyms

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((2,4,5-trimethylphenyl)azo)-, disodium salt; 3-Hydroxy-4-((2,4,5-trimethylphenyl)azo)-2,7-naphthalenedisulphonic acid, disodium salt; A.F. Red No. 1; AF Red No. 1; C.I. 16155; C.I. Food Red 6; C.I. Food Red 6, disodium salt; CI 16155; CI Food 6; CI Food Red 6, disodium salt; Cerven kumidinova [Czech]; Cerven potravinarska 6 [Czech]; D and C Red 15; Disodium 3-hydroxy-4-((2,4,5-trimethylphenyl)azo)-2,7-naphthalenedisulfonate; Disodium 3-hydroxy-4-((2,4,5-trimethylphenyl)azo)-2,7-naphthalenedisulphonate; Dolkwal Ponceau 3R; Ext D and C Red No. 15; FD and C Red No. 1; FDC Red 1; Maple Ponceau 3R; Ponceau 3R Lake; Ponceau 3R sodium salt; Ponceau 3RN; Ponceau RN; Sodium cumeneazo-beta-naphthol disulfonate; Sodium cumeneazo-beta-naphthol disulphonate; Sodium cumeneazo-beta-naphtholdisulphonate; Usacert Red No. 1; [ChemIDplus]

Category

Azo Dyes

Description

Dark red solid; [Merck Index]

Sources/Uses

Used in dyeing wool and biological stains; Banned by FDA for use in foods, drugs, and cosmetics; [Hawley]

Comments

Effects in high-dose rat feeding studies include liver cirrhosis, hyperplasia of bile ducts, and focal hemorrhage and necrosis; [HSDB] An irritant; Targets the liver; [MSDSonline]

Removed from FDA list of approved uses for food (1960) and externally applied drugs and cosmetics (1966); [HSDB]

Biomedical References

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Possible (2b)

Processes

Industrial Processes with risk of exposure:

• Textiles (Printing, Dyeing, or Finishing)