Factory Supply High purity 99% Estrone powder in stock CAS NO.53-16-7

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Min.Order Quantity:: 1 Kilogram

Purity:: 99%+

Port:: any chinese port

Payment Terms:: D/A,D/P,T/T,MoneyGram,Other

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Product Details

Keywords

Estrone
Estrone powder
Estrone factory

Quick Details

ProName: Factory Supply High purity 99% Estrone...
CasNo: 53-16-7
Molecular Formula: C18H22O2
Appearance: White Crystal Powder
Application: Use for API, parmaceutical intermediat...
DeliveryTime: in stock, at any time
PackAge: Factory package or Accoridng customer ...
Port: any chinese port
ProductionCapacity: 100 Kilogram/Week
Purity: 99%+
Storage: Keep in a cool and dry place
Transportation: In stock;Fast and safty;Shipping by DH...
LimitNum: 1 Kilogram

Superiority

product name	estrone
appearance	white crystlline powder
other name	1,3,5(10)-estratrien-3-ol-17-one
cas	53-16-7
assay	99%min
grade	medicine
certificate	iso9001
shelf life	2 years
color	white crystlline
application	pharmaceutical raw intermediates

function:

a) estrone is mainly as intermediate of ethinyl estradiol.

b) estrone is one of several natural estrogens, which also include estriol and estradiol. estradiol is present almost always in the reproductive female body, and estriol is abundant primarily during pregnancy

our advantages:

1, high quality with competitive price:

1) standard:bp/usp/ep/enterprise standard

2) all purity≥99%

3) we are manufacturer and can provide high quality products with factory price.

2, fast and safe delivery

1) parcel can be sent out in 24 hours after payment.tracking number available

2) secure and discreet shipment.various transportation methods for your choice.

3) customs pass rate ≥99%

4) we have our own agent/remailer/distributor who can help us ship our products very fast and safe,

and we have stock in there for transferring.

3,we have clients throughout the world.

1) professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet their desire.

2) market feedback and goods feedback will be appreciated, meeting customers's requirement is our responsibility.

3) high quality,competitive price,fast delivery ,first-class service gain the trust and praise from the customers.

product name	estrone
synonyms	1,3,5(10)-estratrien-3-ol-17-one; 3beta-hydroxyestra-1,3,5(10)-trien-17-one; 3-hydroxy-1,3,5(10)-estratrien-17-one; beta-estrone
cas no.	53-16-7
einecs	200-164-5
molecular formula	c18h22o2
molecular weight	270.37
specifications:
standard	assay ≥99%
appearance	white crystalline powder
melting point	258-261℃
other information:
packing	100g;500g;1kg;25kg(export worthy packing)
applications	used as intermediate of steroid hormone
status	commercials
remark	for more details,please contact us

certification of analysis
item	specification	method	result
physical property
appearance	powder	organoleptic	conforms
color	white powder or crystal	organoleptic	conforms
odour	characteristic	organoleptic	conforms
mesh size	100% through 80% mesh size	usp32<786>	conforms
general analysis
identification	identical to r.s. sample	hplc	conforms
1,3,5(10)-estratrien-3-ol-17-one	99%	hplc	conforms
loss on drying	≤5.0%	eur.ph.6.0[2.8.17]	3.11%
ash	≤5.0%	eur.ph.6.0[2.4.16]	conforms
contaminants
solvents residue	meet eur.ph6.0<5.4>	eur.ph 6.0<2.4.24>	conforms
pesticides residue	meet usp32<561>	usp32<561>	conforms
lead(pb)	≤3.0mg/kg	eur.ph6.0<2.2.58>icp-ms	2.45
arsenic(as)	≤2.0mg/kg	eur.ph6.0<2.2.58>icp-ms	1.29
cadmium(cd)	≤1.0mg/kg	eur.ph6.0<2.2.58>icp-ms	0.68
mercury(hg)	≤0.1mg/kg	eur.ph6.0<2.2.58>icp-ms	0.07
microbiological
total plate count	≤1000cfu/g	usp30<61>	120
yeast &mold	≤100cfu/g	usp30<61>	50
e.coli.	negative	usp30<62>	conforms
salmonella	negative	usp30<62>	conforms
shelf life	24 months under the conditions below, no antioxidant used
package&storage	standard packed in fiber-drum and two plastic bags inside
	n.w: 25kgs/drum or bag; 24t per 20’ container
	store in a cool,dry place away from moisture, light, oxygen

Details

shaanxi mingqi chemical co., ltd is committed to the development of import and export trade in the production, operation and plant extracts of pharmaceutical raw materials and intermediates. it has trade with other asian countries and europe, the americas and african countries. important exporters of pharmaceutical chemical raw materials and the world's latest importers of pharmaceutical raw materials.

shaanxi mingqi chemical has always been adhering to the company to market-oriented, customer-centric, with professional and enterprising team spirit and the company's strong financial strength, to provide customers with fast, high quality and efficient services, and always " to benefit customers "for the purpose.

in the pharmaceutical raw materials and intermediates export business, the company by virtue of years of accumulated experience and high quality and reasonable talent structure, accurate grasp of the market, not only with a number of well-known domestic production enterprises to establish a long-term stable strategic cooperative relations in the global pharmaceutical chemical raw materials and chemical intermediates on the market also won the loyal customer base and a very strong strategic partner, set up a professional image of the outsourcing of pharmaceutical procurement. on the basis of continuing to develop the existing export trade business, the company has formulated the idea of establishing independent research and development center and constructing the production base of pharmaceutical and chemical products according to the future development trend of the pharmaceutical and chemical industry, and strives to establish the combination of r & d, manufacturing and trade of the business development model.

while actively expanding their business and creating economic profits, enterprises do not forget their social responsibility, and actively participate in greening trees, poor students and other social activities, and become a tradition for many years, creating a good social benefits.