Estriol
Synonyms:Estriol
CAS No.: 50-27-1
Formula: C18H24O3
Molecular Weight: 288.39
EINECS: 200-022-2
Density: 1.255 g/cm3
Melting Point: 280-282 ° C(lit. )
Boiling Point: 469 ° C at 760 mmHg
Flash Point: 220.8 ° C
Purity: 99%
Appearance: White crystalline powder
PackAge: 1kg/foilbag
Min. order quantity: 10g
Payment: Western Union, Moneygram
Shipment: EMS, DHL, FedEx, TNT
Delivery: safe & timely, around 7days after payment.

Estradiol, or more precisely, 17β-estradiol, is a human sex and steroid, and the primary female sex hormone. It is named for and is important in the regulation of the estrous and menstrual female reproductive cycles. Estradiol is essential for the development and maintenance of female reproductive tissues but it also has important effects in many other tissues including bone. While estrogen levels in men are lower compared to women, estrogens have essential functions in men as well. Estradiol is found in most vertebrates as well as many crustaceans, insects, fish, and other animal species.

Hormonal contraception:
A chemical derivative of estradiol, ethinyl estradiol with maximum dosage 200 μg, is a major component of hormonal contraceptive devices. Combined forms of hormonal contraception contain ethinyl estradiol and a progestin, which both contribute to the inhibition of GnRH, , and FSH, which accounts for the ability of these birth control methods to prevent ovulation and thus prevent pregnancy. Other types of hormonal birth control contain only progestins and no ethinyl estradiol.

99.9% Purity CAS 1094-61-7 Nicotinamide Mononucleotide Powder Nmn

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.
Fast and safe delivery.
1. Parcel can be sent out in 24 hours after payment tracking number available.
2. Secure and discreet  shipment verious 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.

Q1: Can i get some samples?
A: Yes, we can supply the sample, but the shipping cost be paid by our customers.

Q2: How to start orders or make payments?
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union or Paypal or Escrow(Alibaba).

Q3: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.