Specification :

Chemical name: Estrone
3-Hydroxy-1, 3, 5( 10) -estratrien-17-one
Molecular Structure:
Molecular Formula: C18H22O2
Molecular Weight: 270.371
CAS NO.: 53-16-7
Important Specifications:
Standard: USP30
Appearance: white or almost white powder
Residue on ignition: = 0.5%
Loss on drying: = 0.5%
Single impurity: = 1.0%
Total impurity: = 1.5%
Assay: 97.0% ~ 103.0%
Packing: 25kg/ drum