9,10-Secoergosta-5,7,10(19),22-tetraen-3-ol,(3b,5Z,7E,22E)- (9CI) Cyclohexanol,4-methylene-3-[2-[tetrahydro-7a-methyl-1-(1,4,5-trimethyl-2-hexenyl)-4(3aH)-indanylidene]ethylidene]-(6CI) Ergocalciferol (7CI,8CI)
English name: Vitamin D2
CAS number: 50-14-6
Molecular formula: C28H44O
Molecular weight: 396.65
EINECS number: 200-014-9
熔点
114-118 °C(lit.)
比旋光度
82 º (c=3, in acetone 25 ºC)
沸点
460.3°C (rough estimate)
密度
0.9784 (rough estimate)
蒸气压
7 x l0-7 Pa (20 °C), est.)
折射率
1.5100 (estimate)
闪点
14 °C
储存条件
-20°C
溶解度
H2O: 200 mg/mL, clear to hazy
酸度系数(pKa)
14.74±0.20(Predicted)
形态
powder
颜色
white to yellowish
旋光性 (optical activity)
[α]20/D +105±2°, c = 4% in ethanol
水溶解性
Soluble in ethanol, water, methanol, dimethylformamide, and dimethyl sulfoxide.
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