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CAS No 472-93-5 , b,y-Carotene

  • Name: b,y-Carotene
  • Synonyms: g-Carotene;b,y-Carotene;(all-E)-2-(3,7,12,16,20,24-Hexamethyl-1,3,5,7,9,11,13,15,17,19,23-pentacosaundecaenyl)-1,3,3-trimethylcyclohexene;g-Carotene, all-trans- (8CI);Cyclohexene,2-(3,7,12,16,20,24-hexamethyl-1,3,5,7,9,11,13,15,17,19,23-pentacosaundecaenyl)-1,3,3-trimethyl-,(all-E)-;
  • CAS Registry Number:
  • Flash Point: 348.4°C
  • Boiling Point: 657.8°Cat760mmHg
  • Density: 0.914g/cm3
  • Refractive index: 1.547
  • Flash Point: 348.4°C
  • Molecular Weight: 0
  • InChI: InChI=1/C40H56/c1-32(2)18-13-21-35(5)24-15-26-36(6)25-14-22-33(3)19-11-12-20-34(4)23-16-27-37(7)29-30-39-38(8)28-17-31-40(39,9)10/h11-12,14-16,18-20,22-27,29-30H,13,17,21,28,31H2,1-10H3/b12-11+,22-14+,23-16+,26-15+,30-29+,33-19+,34-20+,35-24+,36-25+,37-27+
  • Molecular Formula: C40H56
  • Molecular Structure:CAS No:472-93-5 b,y-Carotene

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References of b,y-Carotene
Title: g-Carotene
CAS Registry Number: 472-93-5
Molecular Formula: C40H56
Molecular Weight: 536.87
Percent Composition: C 89.49%, H 10.51%
Literature References: A rare carotenoid. Has provitamin A activity. Best source is Penicillium sclerotiorum: Mase et al., Arch. Biochem. Biophys. 68, 150 (1957). Also present in small proportions in many plant materials, esp fruits containing b-carotene. Chromatographic isoln from crude carotenes: Kuhn, Brockmann, Ber. 66, 407 (1933); Winterstein, Z. Physiol. Chem. 219, 249 (1933). Structure: Kuhn, Brockmann, loc. cit.; Naturwissenschaften 21, 44 (1933). Synthesis: Garbers et al., Helv. Chim. Acta 36, 1783 (1953); Ruegg et al., ibid. 44, 985 (1961).
Properties: Probably crystallizes in polymorphous forms. Synthetic form: red plates, mp 152-153.5°. Absorption max (petr ether): 437, 462, 494 nm (E1%1cm 2055, 3100, 2720). Natural form: minute, deep-red prisms with bluish luster from benzene + methanol. mp 177.5°. Absorption max (chloroform): 508.5, 475, 446 nm. Somewhat less sol than b-carotene. Store in darkness in sealed ampoules at low temps (0°C).
Melting point: mp 152-153.5°; mp 177.5°
Absorption maximum: Absorption max (petr ether): 437, 462, 494 nm (E1%1cm 2055, 3100, 2720); Absorption max (chloroform): 508.5, 475, 446 nm
Therap-Cat: Vitamin A precursor.
Therap-Cat-Vet: Vitamin A precursor for all species except cats.
Keywords: Vitamin/Vitamin Source; Vitamin A.