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CAS No 473-98-3 , Betulin

  • Name: Betulin
  • Synonyms: Betulin;Lup-20(29)-ene-3b,28-diol;
  • CAS Registry Number:
  • Transport: OTH
  • Melting Point: 256-257 ºC
  • Flash Point: 210.9°C
  • Boiling Point: 522.3°Cat760mmHg
  • Density: 1.017g/cm3
  • Refractive index: 1.5186
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • Flash Point: 210.9°C
  • EINECS: 207-475-5
  • Molecular Weight: 442.72
  • InChI: InChI=1/C30H50O2/c1-19(2)20-10-15-30(18-31)17-16-28(6)21(25(20)30)8-9-23-27(5)13-12-24(32)26(3,4)22(27)11-14-29(23,28)7/h20-25,31-32H,1,8-18H2,2-7H3/t20-,21+,22?,23?,24-,25?,27-,28+,29+,30+/m0/s1
  • Risk Statements: S26;S36
  • Molecular Formula: C30H50O2
  • Molecular Structure:CAS No:473-98-3 Betulin

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473-98-3 Betulin

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473-98-3 Lup-20(29)-ene-3,28-diol,(3b)-

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473-98-3 betulin

  • betulinLup-20(29)-ene-3,28-diol, 98%
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473-98-3 SPIRULINA POWDER PROTEIN 60%

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References of Betulin
Title: Betulin
CAS Registry Number: 473-98-3
CAS Name: (3b)-Lup-20(29)-ene-3,28-diol
Synonyms: lup-20(30)-ene-3b,28-diol; trochol; betulinol; betulol
Molecular Formula: C30H50O2
Molecular Weight: 442.72
Percent Composition: C 81.39%, H 11.38%, O 7.23%
Literature References: In the outer portion of the bark of white birch (up to 24%), in other barks, and in lignite. Isoln: Lowitz, Crell's Chem. Ann. 1, 312 (1788); L. Ruzicka, O. Isler, Helv. Chim. Acta 19, 506 (1936); and botanical distribution: Steiner, Molisch Festschrift (1936). Isoln from Lemaireocereus griseus Britton et Rose, Cactaceae: C. Djerassi et al., J. Am. Chem. Soc. 78, 2312 (1956). Structure: Ames et al., J. Chem. Soc. 1951, 450; Davy et al., ibid. 1951, 2696, 2702. Stereochemistry: Guider et al., ibid. 1953, 3024; Das, Chem. Ind. (London) 1971, 1331. Reviews: J. Simonsen, W. C. J. Ross, The Terpenes vol. IV (Cambridge Univ. Press, 1957) pp 187-328; E. W. H. Hayek et al., Phytochemistry 28, 2229-2242 (1989).
Properties: Crystals from methanol-chloroform, mp 248-251°; sublimes at 240° at 0.01 mm. Solvated needles from alc contg one mol EtOH. After drying sublimes at 170-180° (bath temp) at 0.08 mm. uv max (H2SO4): 316 nm. [a]D15 +20° (c = 2 in pyridine). Sparingly sol in cold water, petr ether, carbon disulfide. One part is sol in 149 parts alc, 251 ether, 113 chloroform, 417 benzene. Sol in acetic acid.
Melting point: mp 248-251°
Optical Rotation: [a]D15 +20° (c = 2 in pyridine)
Absorption maximum: uv max (H2SO4): 316 nm
 
Derivative Type: Diacetate
CAS Registry Number: 1721-69-3
Molecular Formula: C34H54O4
Molecular Weight: 526.79
Percent Composition: C 77.52%, H 10.33%, O 12.15%
Properties: mp 223-224°. [a]D20 +22° (c = 1.2 in CHCl3). d4228.5 0.9635; nD228.5 1.4661.
Melting point: mp 223-224°
Optical Rotation: [a]D20 +22° (c = 1.2 in CHCl3)
Index of refraction: nD228.5 1.4661
Density: d4228.5 0.9635
 
Use: Light stabilizer for cellulose and wood pulp. In mfr of resins, laquers, emulsifiers and polyurethanes. Cosmetics additive.