Agent Name

D&C Red 9

Alternative Name

CI Pigment Red 53:1

CAS Number




Major Category



CI Pigment Red 53:1; 1-(4-Chloro-o-sulfo-5-tolylazo)-2-naphthol, barium salt; 1-(4-Chloro-o-sulpho-5-tolylazo)-2-naphthol, barium salt; 1860 Red; 5-Chloro-2-((2-hydroxy-1-naphthalenyl)azo)-4-methylbenzenesulfonic acid, barium salt (2:1); 5-Chloro-2-((2-hydroxy-1-naphthyl)azo)-p-toluenesulfonic acid, barium salt; Astro Orange; Atomic Red; Benzenesulfonic acid, 5-chloro-2-((2-hydroxy-1-naphthalenyl)azo)-4-methyl-, barium salt (2:1); Brilliant Red; Bronze Red 16913 Yellowish; Bronze Red RO; Bronze Scarlet CA; Bronze Scarlet CBA; Bronze Scarlet CT; Bronze Scarlet CTA; Bronze Scarlet Toner; C.I. 15585:1; C.I. Pigment Red 53, barium salt; CI Pigment Red 53, barium salt (2:1); Carnation Red; Cosmetic Coral Red KO Bluish; Cosmetic DVR; Cosmetic Pigment Yellow Red DVR; D and C Red No. 9; Dainichi Lake Red C; Desert Red; Eljon Lake Red C; Hamilton Red; Helio Red Toner LCLL; Irgalite Red CBN; Irgalite Red CBR; Irgalite Red CBT; Irgalite Red MBC; Isol Lake Red LCS 12527; Isol Red LCR 2517; Japan Red 204; Japan Red No. 204; Lake Red 1520; Lake Red C; Lake Red C 18287; Lake Red C 21245; Lake Red C 27200; Lake Red C 27217; Lake Red C 27218; Lake Red C Barium Toner; Lake Red C RLC-232 (barium); Lake Red C Toner 8195; Lake Red C Toner 8366; Lake Red CBA; Lake Red CC; Lake Red CCT; Lake Red CR; Lake Red CRLC-232 (barium); Lake Red GB barium salt; Lake Red RRG; Lake Red Toner C; Lake Red Toner LCLL; Lake Red ZHB; Latexol Scarlet R; Latexol Scarlet R Solupowder; Ld Rubber Red 16913; Lutetia Red CLN; Lutetia Red CLN-ST; Microtex Lake Red CR; Mohican Red A-8008; No.3 Conc. Bronze Scarlet; No.3 Conc. Scarlet; Paridine Red LCL; Pigment Lake Red BFC; Pigment Lake Red CD; Pigment Lake Red LC; Pigment Red 53:1; Pigment Red CD; Potomac Red; Recolite Red Lake C; Recolite Red Lake CR; Red 16913H; Red 1860; Red For Lake C; Red For Lake C Toner RA-5190; Red For Lake Toner RA-5190; Red Lake C; Red Lake C Toner; Red Lake C Toner 20-5650; Red Lake C Toner RA-5190; Red Lake CM 20-5650; Red Lake CR-1; Red Lake R-91; Red No. 204; Red Scarlet; Red Toner Z; Red ZhB; Rubber Red 16913R; Sanyo Lake Red C; Scarlet Toner Y; Segnale Red LC; Segnale Red LCG; Segnale Red LCL; Sico Lake Red 2L; Sumikaprint Red C-O; Superol Red C RT-265; Symuler Lake Red C; Termosolido Red LCG; Texan Red Toner D; Toner Lake Red C; Transparent Bronze Scarlet; Vulcafix Scarlet R; Vulcafix Scarlet R-D masse; Vulcafor Red 2R; Vulcan Red LC; Vulcol Fast Red L; Wayne Red X-2486; Barium bis(2-chloro-5-((2-hydroxy-1-naphthyl)azo)toluene-4-sulphonate); [ChemIDplus]


Azo Dyes


Red solid; [HSDB] Red powder; [MSDSonline]


Used in printing inks, coated papers, crayons, cosmetics, drugs, paints, polystyrene, rubber, tin printing, and baking enamels; [HSDB]


Toxic by ingestion or inhalation of dispersed powder; May have effects on the blood and spleen; [ICSC] Causes splenomegaly in high-dose feeding studies of rats; [HSDB] A mild eye irritant; May cause skin sensitization; [MSDSonline] No reported adverse effects in humans; Approved for use in drugs and cosmetics; [AIHA]


Drug and cosmetic use in the US was last approved in 1988; [HSDB]

Exposure Assessment

1 mg/m3

Adverse Effects
IARC Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

Search ChemIDplus

Related Information in HazMap

Industrial Processes with risk of exposure: