QTY |
FOB PRICE |
CIF PRICE
QUANTITY
-
+
kg
TOTAL COST
$1660Model : 50-28-2 |
Material : Default |
Pcs/Carton : N/A | Packing Size/Carton : N/A | Packing Vol/Carton : N/A |
N.W./Carton : N/A | G.W./Carton : N/A | QTY in 40HQ : N/A |
QTY in 40GP : N/A | QTY in 20GP : N/A |
English name: beta estradiol
English alias: 1,3,5 - estratriene - 3 beta - diol in 2; Beta - estradiol; 3 in 2 beta - dihydroxy 1,3,5 (10) -- estratriene; Dihydrofolliculin; (alpha, beta, alpha, 13 14 beta, 17 alpha) -,3,5 estra - 1 (10) -- triene - 3 - diol in 2; Beta - Estradiol; B - estradiol
The CAS number: 50-28-2
EINECS no. : 200-023-8
Molecular formula: C18H24O2
Molecular weight: 272.382
InChI: InChI = 1 / C18H24O2 / c1-18-9-8-14-18-9-8-12 (19) 10-11 (13) 2-4-15 (14) 16 (18) 2-4-15 (18) 20 / h3, 5,10,14-17 to 20, 12 h, 2 minus 2-9 h2, h3 / t14-1, 15, 16 +, 17 + 18 + / m0 / s1
The molecular structure: beta estradiol 50-28-2
Density: 1.17 g/cm3
Melting point: 173 ℃
Boiling point: 445.9 ° C at 760 mmHg
Flash: 209.6 ° C
Vapor pressure: 9.82 e-09 mmHg at 25 ° C
Physical and chemical properties:
Melting point of 173 ° c.
For female estradiol,3,5 steroid - 1 (10) -- triene - 3 beta - diol.
Calculated on dry goods, including C18H24O2 should be 97.0 ~ 103.0%.
【 characteristics 】 the goods is white or milk white crystalline powder; Odourless.
The goods in dioxane or dissolved in acetone, slightly soluble in ethanol, insoluble in water.
Melting point the melting point of the goods (in Chinese pharmacopeia 1990 edition of appendix 15 pages) should be 175 ~ 180 ℃.
Than the curl to take the goods, precision said, adding dioxane dissolving and quantitative dilution solution of each 1 ml contains 10 mg, determined in accordance with the law, [1] than curl should be + + 32 ° 75 °.
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