Ethynyl estradiol
4 Inquiries
57-63-6
99%
Bottle,barrel,cargo,container,etc.
2026-10-05
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
-
Product Description
-
Seller Information
-
Inquiry History
-
DescriptionKeywords
57-63-6
Ethynyl estradiol
C20H24O2
Quick DetailsProName:Ethynyl estradiol
CasNo:57-63-6
Molecular Formula:C20H24O2
Appearance:powder, or liquid
Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals
DeliveryTime:5-7 Days
PackAge:Bottle, barrel, cargo, container, etc.
Port:Shanghai
Purity:99
Storage:Stored in room temperature, ventilated place
Transportation:By air, ship, express, etc.
LimitNum:0
Grade:Industrial Grade
SuperiorityBest Seller, High Quality, Competitive Price, Fast Delivery, Quick Response
DetailsLEAPChem supplies high quality Pharmaceuticals, intermediates, APIs, custom synthesis, fine chemicals and other industrial chemicalsECHEMI Editorial ReferenceEthynyl estradiol is an orally bio-active estrogen used in almost all modern formulations of combined oral contraceptive pills.Target: Estrogen ReceptorEthinyl estradiol (EE), also sometimes written as ethinylestradiol, ethynyl estradiol, or ethinyl estradiol, is a derivative of 17β-estradiol (E2), the major endogenous estrogen in humans. EE is an orally bioactive estrogen used in many formulations of combined oral contraceptive pills. It is one of the most commonly used medications for
Ethynyl estradiol (EE) is a synthetic form of estrogen that is majorly employed in numerous hormonal contraceptives in combination with progestins. Occasionally, it is also used as a constituent of menopausal hormone therapy with combination with progestins for treating menopausal symptoms. Previously, the drug was used solely for numerous indications such as treatment of prostate cancer and gynecological disorders.Ethynyl estradiol is a semisynthetic alkylated estradiol with a 17-alpha-ethinyl substitution. It is normally administred orally and is marketed mostly as a combination oral contraceptive under various brand names such as Alesse, Tri-cyclen, Yasmin, and Triphasil. A black box warning is normally labelled on the packaging that states that the drug should not be used in smoking women who are over 35 years old as it can lead to increased risk of serious cardiovascular side effects.
Off-White to Light-Yellow Crystalline Powder
Ethinylestradiol is a white to creamy-white powder. Odorless.
ChEBI: A 3-hydroxy steroid that is estradiol substituted by a ethynyl group at position 17. It is a xenoestrogen synthesized from estradiol and has been shown to exhibit high estrogenic potency on oral administration.Basic Info-
Product Name:
Ethinyl Estradiol
Other Name:ETHINYL ESTRADIOL;LYNORAL;19-NORPREGNA-1,3,5(10)-TRIEN-20-YNE-3,17ALPHA-DIOL;19-NOR-1,3,5[10],17ALPHA-PREGNATRIEN-20-YNE-3,17-DIOL;1,3,5(10)-ESTRATRIEN-17-ALPHA-ETHYNYL-3,17-BETA-DIOL;ACETENYL ESTRADIOL;17ALPHA-ETHYNYL-DELTA1,3,5(10)-ESTRA-TRIENE-3,17BETA-DIOL;17ALPHA-ETHYNYLESTRADIOL
CAS No.:57-63-6
Molecular Formula:C20H24O2
InChIKeys:BFPYWIDHMRZLRN-SLHNCBLASA-N
Molecular Weight:296.41
Exact Mass:296.40
BRN:2419975
EC Number:200-342-2
TSCA:TSCA listed
Color/Form:White to Light yellow to Light orange
HScode:29372390
Categories:
Characteristics-
PSA:
40.46000
XLogP3:3.7
Appearance:Ethinylestradiol is a fine white to creamy white powder. A synthetic steroid. Used in combination with progestogen as an oral contraceptive.
Density:1.0944 (rough estimate)
Melting Point:182-183 °C(lit.)
Boiling Point:378°C (rough estimate)
Flash Point:211.2ºC
Refractive Index:-30 ° (C=0.4, Pyridine)
Water Solubility:0.0113 mg/mL at 27 °C
Storage Conditions:Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition so
Vapor Pressure:1.95X10-9 mm Hg at 25 deg C (est)
Toxicity:LD50 oral in rat: 960mg/kg
Specific rotation:Specific optical rotation: 3.5 deg at 24 °C/D (c = 2 in dioxane); -29.5 deg at 24 °C/D (c = 2 in pyridine)
Odor:Odorless
PKA:pKa 10.32 (Uncertain)
Henrys Law Constant:1.2×106mol/(m3Pa) at 25℃, HSDB (2015)
Air and Water Reactions:Air and light sensitive . Insoluble in water.
Reactivity Profile:Ethynyl estradiol may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to generate gaseous hydrogen.
Critical Temperature & Pressure:room temp
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 4, Oral
Carcinogenicity, Category 1B
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H302 Harmful if swallowed
H350 May cause cancer
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P203 Obtain, read and follow all safety instructions before use.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P318 IF exposed or concerned, get medical advice.
Storage P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
-
-
Seller Information
-
Business Type:
Trader
-
Main Products:
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
-
Location:
Room A, 23rd Floor, No. 609 Yan'an Road, Gongshu District, Hangzhou, Zhejiang
-
Payment Terms:
TT against copy of documents,D/P,L/C
-
Average lead Time:
5
-
Total Annual Revenue:
Above $100 million
-
Year of Establishment:
2020
-
Certifications:
ISO
">Company ProfileLEAPChem is a specialized fine chemical supplier for research, development and production.
LEAPChem provides nearly 200,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities.
As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner.
Our client list includes many major pharmaceutical and science companies, universities, research institutions and chemical catalogue companies.
Methodology: Sound & Stable; Active & Innovative.
Attitude: Conscientious; Ingenious.
Goals: Customer's Satisfaction
We regard client's success as our success.
At LEAPChem, we strive to be the preferred supplier for efficiency increasing and cost lowering in your Research & Production.
To achieve this strategic vision, we always push ourselves to exceed our customer's requirement. By focusing on the aim of 'Beyond Your Expectation', we continually expand our product lines, and enhance our systematic management and human resources.
Welcome to contact us and we look forward to becoming your reliable and preferred partner.
-
-
Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
Pakistan
Ethinyl estradiol
150 G Jan 24, 2026 
Bangladesh
Ethinyl Estradiol
100 KG Aug 19, 2026
Bangladesh
Ethinyl Estradiol
100 KG Aug 19, 2026 
Jordan
Ethinyl Estradiol
1 KG Aug 29, 2024 Post an enquiry for this product
