Buy wholesale Estrone crystalline powder CAS NO. 53-16-7 factory price
Buy Estrone crystalline powder. Buy wholesale Estrone crystalline powder CAS NO. 53-16-7 factory price.
Buy China Manufacturer Estrogen Female Steroid Hormone Estrone (Oestrone) Powder
What is Estrone?
Estrone (E1), also name oestrone, is a steroid, a weak estrogen, and a minor female sex hormone. It is one of three major endogenous estrogens, the others being estradiol and estriol. buy Estrone online, as well as the other estrogens, are synthesized from cholesterol and secreted mainly from the gonads, though they can also be formed from adrenal androgens in adipose tissue. Relative to estradiol, both estrone suppliers and estriol have far weaker activity as estrogens. Buy Estrone crystalline
Estrone for sale is a white, odorless, solid crystalline powder, with a melting point of 254.5 °C (490 °F) and a specific gravity of 1.23.[12][13] Estrone is combustible at high temperatures, with the products carbon monoxide (CO) and carbon dioxide (CO2). Buy Estrone crystalline
Estrone Chemical Profile
CAS No: 53-16-7
Formula: C18 H22 O2
Melting Point: 260˚C
Molecular Weight: 270.37
Rotation: +162˚ Diox
Estrone
- High quality Estrone
- CAS NO:53-16-7
| Items |
Hormones and the Endocrine System |
Result |
| Appearance | white or almost white crystalline powder | white crystalline powder STEROIDS |
| Identification | The IR spectrum of sample complies white that of reference standard | conforms |
| UV: the minimum and maximum absorption value of test solution should be conforms to that of reference solution | conforms | |
| Clarity of solution | Solution is clear | conforms |
| Specific rotation | +158.0 to +165.0 | +160.0 |
| Loss on drying | ≤0.5% | 0.1% |
| Residue on ignition | ≤0.5% | 0.1% |
| Related substance | ≤2.0% | conforms |
| assay | 97.0-103.0% | 97.8% |
| Residual solvents | Acetone ≤5000ppm | Not detected |
| Ethanol ≤5000 | 1317ppm | |
| Ethyl acetate≤5000pm | Not detected | |
| Bebzene ≤2ppm | Not detected | |
| conclusion | Meet the above specification |
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