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CAS No 331-39-5 , (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid

  • Name: (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid
  • Synonyms: Cinnamic acid; 3-(3,4-dihydroxyphenyl)acrylic acid; 331-39-5;3,4-Dihydroxycinnamic acid;(E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid; 3,4-dihydroxy-; trans-Caffeate;
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 194-198 ºC (DEC.)
  • Density: 1.478 g/cm3
  • Safety Statements: R36/37/38;R40
  • Hazard Symbols: Xn: Harmful;
  • HS Code: 29182990
  • EINECS: 206-361-2
  • Molecular Weight: 180.15742
  • InchiKey: QAIPRVGONGVQAS-DUXPYHPUSA-N
  • InChI: InChI=1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,
    13)/b4-2+
  • Risk Statements: S26;S36/37/39
  • Molecular Formula: C9H8O4
  • Molecular Structure:CAS No:331-39-5 (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid

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  • product Name 3, 4-dihydroxycinnamate Synonyms Caffeicacid,96%; Caffeic acid; 3,4-Dihydroxycinnamic acid; 3-(3,4-dihydroxyphenyl)prop-2-enoic acid; (2E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid; (2Z)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid; (2E)-3-(3...
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331-39-5 caffeic acid

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331-39-5 CAFFEIC ACID

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References of (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid
Title: Caffeic Acid
CAS Registry Number: 331-39-5
CAS Name: 3-(3,4-Dihydroxyphenyl)-2-propenoic acid
Synonyms: 3,4-dihydroxycinnamic acid
Molecular Formula: C9H8O4
Molecular Weight: 180.16
Percent Composition: C 60.00%, H 4.48%, O 35.52%
Literature References: Constituent of plants, probably occurs in plants only in conjugated forms, e.g., chlorogenic acid. Isoln from green coffee: Wolfrom et al., J. Agric. Food Chem. 8, 58 (1960); from roasted coffee: Krasemann, Arch. Pharm. 293, 721 (1960). Formation by acid hydrolysis of chlorogenic acid: Fiedler, Arzneim.-Forsch. 4, 41 (1954); Whiting, Carr, Nature 180, 1479 (1957); Guern, C.A. 61, 9965h (1964). Synthesis: Hayduck, Ber. 36, 2935 (1903); Posner, J. Prakt. Chem. 82, 432 (1910); Mauthner, ibid. 142, 33 (1935); Pandya et al., Proc. Indian Acad. Sci. 9A, 511 (1939); Neish, Can. J. Biochem. Physiol. 37, 1431 (1959). Review: Herrmann, Pharmazie 11, 433 (1956).
Properties: Yellow crystals from concd aq solns. Monohydrate from dil solns. Dec 223-225° (softens at 194°). Rf values: Fiedler, loc. cit. Sparingly sol in cold water. Freely sol in hot water, cold alc. Alkaline solns turn from yellow to orange.
 
Derivative Type: Methyl ester
Molecular Formula: C10H10O4
Molecular Weight: 194.18
Percent Composition: C 61.85%, H 5.19%, O 32.96%
Properties: Colorless needles from water, mp 152-153°.
Melting point: mp 152-153°