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CAS No 4548-53-2 , disodium

  • Name: disodium
  • Synonyms: Crimson 4R; Ponceau SX Lake; 4R purple; Food red 1; Maple Ponceau SX; Dye FD & C Red No. 4; Ponceau SX;(3E)-3-[(2,
    4-dimethyl-5-sulfonatophenyl)hydrazinylidene]-4-oxonaphthalene-1-
    sulfonate; Purple 4R;FD & C Red no. 4;disodium;
  • CAS Registry Number:
  • Flash Point: °C
  • Boiling Point: °Cat760mmHg
  • Density: g/cm3
  • Safety Statements: Low toxicity by ingestion. Questionable carcinogen with experimental carcinogenic and tumorigenic data. When heated to decomposition it emits toxic fumes of NOx and SOx.
  • Flash Point: °C
  • EINECS: 224-909-9
  • Molecular Weight: 480.422499
  • InchiKey: GRRDBTDTMCTWQZ-ZAWKPCBGSA-L
  • InChI: InChI=1S/C18H16N2O7S2.2Na/c1-10-7-11(2)16(28(22,
    23)24)8-14(10)19-20-15-9-17(29(25,
    26)27)12-5-3-4-6-13(12)18(15)21;;/h3-9,19H,1-2H3,(H,22,23,24)(H,25,26,
    27);;/q;2*+1/p-2/b20-15+;;
  • Molecular Formula: C18H14N2Na2O7S2
  • Molecular Structure:CAS No:4548-53-2 disodium

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4548-53-2 Ponceau SX

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References of disodium
Title: Ponceau SX
CAS Registry Number: 4548-53-2
CAS Name: 3-[(2,4-Dimethyl-5-sulfophenyl)azo]-4-hydroxy-1-naphthalenesulfonic acid disodium salt
Synonyms: FD & C Red No. 4; C.I. Food Red 1; C.I. 14700
Molecular Formula: C18H14N2Na2O7S2
Molecular Weight: 480.42
Percent Composition: C 45.00%, H 2.94%, N 5.83%, Na 9.57%, O 23.31%, S 13.35%
Literature References: Azo dye. Prepn: E. N?lting, O. Kohn, Ber. 19, 137 (1886). Metabolism: J. L. Radomski, T. J. Mellinger, J. Pharmacol. Exp. Ther. 136, 259 (1962). Toxicity studies: F. C. Lu, A. Lavalle, Can. Pharm. J. 97, 30 (1964); K. J. Davis et al., Toxicol. Appl. Pharmacol. 8, 306 (1966). Determn in maraschino cherries: R. E. Draper, J. Assoc. Off. Anal. Chem. 56, 703 (1973); HPLC determn in lipstick: L. Gagliardi et al., J. Chromatogr. 394, 345 (1987). Review: IARC Monographs 8, 207-214 (1975). See also: Colour Index vol. 4 (3rd ed., 1971) p 4068.
Properties: Red crystals. Absorption max (0.02 N CH3COONH4): 500 nm. Sol in water; slightly sol in ethanol. Insol in vegetable oils. Deep red soln in conc H2SO4, changing to red ppt on dilution. Orange soln in conc HNO3, turning yellow. LD50 orally in rats: >2 g/kg (Lu, Lavalle).
Absorption maximum: Absorption max (0.02 N CH3COONH4): 500 nm
Toxicity data: LD50 orally in rats: >2 g/kg (Lu, Lavalle)
Use: Dye in externally applied drugs, cosmetics; food colorant in maraschino cherries.