good quality purity Dehydroepiandrosterone powder DHEA
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Dehydroepiandrosterone

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White crystalline powder. Soluble in benzene, ethanol, ethyl ether, soluble in chloroform, petroleum ether.
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Dehydroepiandrosterone
Alias:DHEA,dehydroisoandrosterone,PRASTERONE;TRANS-DEHYDROANDROSTERONE
CAS NO: 53-43-0
Einecs No: 200-175-5
MF:  C19H28O2
MW: 288.42
Melting point: 149-156 °C

Purity: 98.0%
Appearance:  White crystalline powder. Soluble in benzene, ethanol, ethyl ether, soluble in chloroform, petroleum ether.

Usage: Used in the production of the main raw material of steroid hormone drugs and birth control pills.


 

ITEMS STANDARD RESULTS
Characteristics White or almost white crystalline powder Almost white crystalline powder
Melting point 149~156 155.0~155.5
Specific optical rotation -16° -19° -17.4°
Identification The retention time of the major peak in the chromatogram of the assay 
preparation corresponds to that in the chromatogram of the standard 
preparation,   
as obtained in the assay
Conforms
  UV absorption Max.   at 266 nm Conforms
  IR spectra is consistent with CRS Conforms
PH 4.5~6.5 5.2
Chlorides ≤ 0.02% 0.02%
Fluorides ≥ 4.8% 4.80%
Related substances Individual impurity ≤ 0.5% 0.50%
  Total impurities ≤ 2.0% 0.90%
Residue on ignition ≤ 0.1% 0.07%
Water ≤ 0.5% 0.06%
Heavy metals ≤ 20ppm

 

Average rating: 5.0
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