Estrone CAS: 53-16-7 CAS NO.53-16-7

quick details:

cas no.: 53-16-7
assay: 98%
molecular formula: c18h22o2
molecular weight: 270.37
quality standard: usp31
packing: foil bag
appearance: white or almost white powder
usage: a metabolite of 17beta-estradiol. synthesis of pharmaceutical intermediates is ethinyl estradiol

estrone function:

estrone (e1, and also oestrone) is an estrogenic hormone secreted by the ovary as well as adipose tissue with the chemical name of 3-hydroxyestra-1,3,5(10)-triene-17-one and the chemical formula c18h22o2. estrone is an odorless, solid crystalline powder, white in color with a melting point of 254.5 °c and a specific gravity of 1.23. estrone is one of several natural estrogens, which also include estriol and estradiol. estrone is the least abundant of the three hormones; estradiol is present almost always in the reproductive female body, and estriol is abundant primarily duringpregnancy.
estrone is known to be a carcinogen for human females as well as cause breast tenderness or pain, nausea, headache, hypertension, and leg cramps. in men, estrone has been known to cause anorexia, nausea, vomiting, and erectile dysfunction.estrone is relevant to health and disease states because of its conversion to estrone sulfate, a long-lived derivative. estrone sulfate acts as a reservoir that can be converted as needed to the more active estradiol. it is the predominant estrogen in postmenopausal women.

the quality control process:

1) producing
a)each operator must do self-inspection of producs and make the corresponding inspection records.
b)full-time inspectors through check the operator self-inspection, and review and sign in the corresponding record. full-time inspection is responsible for inspection of finished product, and make the finished product incoming inspection records.

2) inspection
random sample, sample pretreatment, measuring and data processing.

3) before selling
test result can be provided before selling.only good quality goods will be into stock.
third-party detection institution is allowed if you are not satisfied with test results.

how to make an order :

1. name what your need ( which product , quantity )
2. full payment would be done once we come to an agreement on all details .
3. parcel would be shipped out upon receipt of payment .
4. info about parcel would be offered ( photo , tracking number )
5. finally you would get the parcel in 3~7 days .

payment and shipping:




our service:

1.we have experience in exporting pharmaceutical intermediates .
2.professional packing with professional materials
3. we have products in stock, and we will deliver them soon when your po arrived. meanwhile we will give you the tracking number in order to make you know the exact location of the products. we will keep track of the product until they arrive you; we choose the best courier service for you, and with the delivery around 5-7 working days.
if any new enquiry,please feel free to contact us!

our advantages:

1,high quality under strict qc/qa system with gmp factory price
2,fast and safe delivery with secure and discreet shipment
3,providing complete services with our resource integration, we can thus create more competitive
advantages for you!