Neoergosterol
Title: Neoergosterol
CAS Registry Number: 516-98-3
CAS Name: (3b,22E)-19-Norergosta-5,7,9,22-tetraen-3-ol
Molecular Formula: C27H40O
Molecular Weight: 380.61
Percent Composition: C 85.20%, H 10.59%, O 4.20%
Literature References: Prepd from ergosterol: Inhoffen, Ann. 497, 130 (1932); Windaus, Deppe, Ber. 70, 76 (1937); Mosettig, Scheer, J. Org. Chem. 17, 764 (1952). Stereochemistry: Steele et al., J. Am. Chem. Soc. 85, 1134 (1963).
Properties: Needles from methanol, mp 152-154°. [a]D17 -11° (c = 2 in chloroform). Practically insol in water. Sol in organic solvents. Precipitated by digitonin.
Melting point: mp 152-154°
Optical Rotation: [a]D17 -11° (c = 2 in chloroform)
 
Derivative Type: Methyl ether
Molecular Formula: C28H42O
Molecular Weight: 394.63
Percent Composition: C 85.22%, H 10.73%, O 4.05%
Properties: mp 94°. [a]D20 -5° (c = 1.2 in chloroform).
Melting point: mp 94°
Optical Rotation: [a]D20 -5° (c = 1.2 in chloroform)

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