Agent Name

C.I. Acid Red 18

CAS Number

2611-82-7

Formula

C20-H14-N2-O10-S3.3Na

Major Category

Dyes

Synonyms

7-Hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-1,3-naphthalenedisulfonic acid, trisodium salt; 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt; 1-(4-Sulpho-1-naphthylazo)-2-naphthol-6,8-disulphonic acid, trisodium salt; 1578 Red; Acid Brilliant Scarlet 3R; Acid Ponceau 4R; Acid Red 18; Acid Scarlet 3R; Acid Scarlet 3RZ; Acid Scarlet 4R; Acidal Bright Ponceau 3R; Acilan Scarlet V3R; Aizen Brilliant Scarlet 3RH; Atul Acid Scarlet 3R; Atul Scarlet F; Brilliant Ponceau 3R; Brilliant Ponceau 3RF; Brilliant Ponceau 4R; Brilliant Ponceau 4RC; Brilliant Ponceau 4RC Specially Pure; Brilliant Ponceau 5R; Brilliant Scarlet; Brilliant Scarlet 3R; Brilliant Scarlet 3R (Biological stain); Brilliant Scarlet 4R; Bucacid Brilliant Scarlet 3R; C.I. 16255; C.I. 185; C.I. Acid Red 18 (VAN); C.I. Acid Red 18, trisodium salt; C.I. Acid Red 28; C.I. Food Red 7; Calcocid Brilliant Scarlet 3RN; Certicol Ponceau 4RS; Cerven kosenilova A [Czech]; Cerven kysela 18 [Czech]; Cerven potravinarska 7 [Czech]; Cilefa Ponceau 4R; Coccin Red; Coccine; Coccine nouvelle [French]; Cochenillerot A [German]; Cochineal Red 4R; Cochineal Red A; Cochineal Red A Specially Pure; Colacid Ponceau 4R; Crimson SX; Curol Bright Red 4R; Daishiki Brilliant Scarlet 3R; E 124; Edicol Supra Ponceau 4R; Edicol Supra Ponceau 4RS; Edicol Supra Ponceaux 4 RS; Edicol Supra Ponceaux 4RS; Eurocert Cochineal Red A; Fenazo Scarlet 3R; Food Red 102; Food Red 6; Food Red 7; Food Red No. 102; Food Red Number 102; HD Ponceau 4R; HD Ponceau 4R Supra; Hexacol Ponceau 4R; Hidacid Fast Scarlet 3R; Hispacid Brilliant Scarlet 3RF; Java Scarlet 3R; Kayaku Acid Brilliant Scarlet 3R; Kayaku Food Colour Red No. 102; Kiton Scarlet 4R; Kochineal Red A for food; L-Red 4; L-Rot 4; L-Rot 4 [German]; Naphthalene Ink Scarlet 4R; Naphthalene Scarlet 4R; Naphthalene Scarlet 4RS; Neklacid Red 3R; Neklacid Red 4R; Neucoccin [German]; New Coccine Extra Conc. A Export; New Coccine Extra Pure A; New Coccine Red No. 102; New Coccin; New Coccine; Ponceau 4R; Ponceau 4R Aluminum Lake; Ponceau 4RE; Ponceau 4RE.FQ; Ponceau 4RF; Ponceau 4RT; Pontacyl Scarlet RR; Purple Red; Purple SX; Rakuto Brilliant Scarlet 3R; Red 102; Red Dye No. 102; Rouge de cochenille A [French]; SX Purple; San-ei Brilliant Scarlet 3R; Scarlet 4R; Scarlet 4RA; Schultz Nr. 213 [German]; Strawberry Red; Strawberry Red A Geigy; Sugai Brilliant Scarlet 3R; Symulon Acid Brilliant Scarlet 3R; Takaoka Brilliant Scarlet 3R; Victoria Scarlet 3R; Victoria Scarlet Red; Victoria Scharlach 4 R Extra [German]; Zolfosol; [ChemIDplus]

Category

Azo Dyes

Description

Maroon solid; [HSDB]

Sources/Uses

Used as a dye (wool, nylon, silk, inks, paper, plastics, wood stains, and leather); Used as a dye in foods, drugs, and cosmetics in countries outside the US; [HSDB]

Comments

May cause irritation; May be harmful if swallowed; [MSDSonline]

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: