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CAS No 479-20-9 , (3-hydroxy-4-methoxycarbonyl-2,5-dimethylphenyl)
3-formyl-2,4-dihydroxy-6-methylbenzoate Search by region : Germany

  • Name: (3-hydroxy-4-methoxycarbonyl-2,5-dimethylphenyl)
    3-formyl-2,4-dihydroxy-6-methylbenzoate
  • Synonyms: Atranoric acid; Usnarin; Usnarin acid;Atranorine; 479-20-9; Parmelin acid; EINECS 207-527-7; Parmelin;(3-hydroxy-4-methoxycarbonyl-2,5-dimethylphenyl)
    3-formyl-2,4-dihydroxy-6-methylbenzoate; Antranoric acid;
  • CAS Registry Number:
  • Melting Point: 156-158°C
  • Flash Point: 189.3°C
  • Boiling Point: 535.7°C at 760 mmHg
  • Density: 1.404g/cm3
  • Refractive index: 1.644
  • Safety Statements: A poison by skin contact. A skin irritant. When heated to decomposition it emits acrid smoke and irritating vapors.
  • Hazard Symbols: A poison by skin contact. A skin irritant.
  • Flash Point: 189.3°C
  • EINECS: 207-527-7
  • Molecular Weight: 374.34142
  • InchiKey: YLOYKYXNDHOHHT-UHFFFAOYSA-N
  • InChI: InChI=1S/C19H18O8/c1-8-5-12(21)11(7-20)17(23)15(8)19(25)27-13-6-9(2)14
    (18(24)26-4)16(22)10(13)3/h5-7,21-23H,1-4H3
  • Molecular Formula: C19H18O8
  • Molecular Structure:CAS No:479-20-9 (3-hydroxy-4-methoxycarbonyl-2,5-dimethylphenyl)<br />3-formyl-2,4-dihydroxy-6-methylbenzoate

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References of (3-hydroxy-4-methoxycarbonyl-2,5-dimethylphenyl)
3-formyl-2,4-dihydroxy-6-methylbenzoate
Title: Atranorin
CAS Registry Number: 479-20-9
CAS Name: 3-Formyl-2,4-dihydroxy-6-methylbenzoic acid 3-hydroxy-4-(methoxycarbonyl)-2,5-dimethylphenyl ester
Synonyms: atranoric acid
Molecular Formula: C19H18O8
Molecular Weight: 374.34
Percent Composition: C 60.96%, H 4.85%, O 34.19%
Literature References: From a number of lichens. Belongs to the group of lichen acids. Isoln: Paterno, Ogliarori, Gazz. Chim. Ital. 1877, 189; Hesse, Ber. 30, 357, 1983 (1897); St. Pfau, Helv. Chim. Acta 9, 650 (1926). Synthesis: Neelakantan et al., Tetrahedron Lett. 1962, 287. TLC analysis: R. Klee, L. Steubing, J. Chromatogr. 129, 478 (1976); J. L. Ramaut et al., ibid. 155, 450 (1978).
Properties: Bitter crystals or cryst powder from chloroform, mp 195°. Practically insol in water; slightly sol in alc; sol in boiling benzene or in chloroform; also sol in alkalies giving a yellow soln.
Melting point: mp 195°