17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether
- Product Name
- 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether
- CAS No.
- 72-33-3
- Chemical Name
- 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether
- Synonyms
- 33355;EE3ME;d-MVE;sc4725;RS 1044;Devocin;Norquen;Ovastol;SC 4725;MESTRANOL
- CBNumber
- CB7426942
- Molecular Formula
- C21H26O2
- Formula Weight
- 310.43
- MOL File
- 72-33-3.mol
17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether Property
- Melting point:
- 153-155 °C(lit.)
- Boiling point:
- 390.58°C (rough estimate)
- alpha
- +2～+8°(D/20℃)(c=1, 1,4-dioxane)
- Density
- 1.0865 (rough estimate)
- refractive index
- 1.4900 (estimate)
- storage temp.
- Sealed in dry,2-8°C
- solubility
- Acetonitrile: 1 mg/ml; Ethanol: 1 mg/ml; Methanol: 1 mg/ml
- form
- Solid
- pka
- 13.10±0.40(Predicted)
- color
- White to off-white
- optical activity
- [α]15/D +3°, c = 2 in dioxane
- Merck
- 5917
- BRN
- 2625905
- CAS DataBase Reference
- 72-33-3(CAS DataBase Reference)
- NIST Chemistry Reference
- Mestranol(72-33-3)
- EPA Substance Registry System
- Mestranol (72-33-3)
Safety
- Hazard Codes
- Xn
- Risk Statements
- 36/37/38-40-48-68
- Safety Statements
- 22-26-36/37/39-45-36/37
- WGK Germany
- 3
- RTECS
- RC8960000
- HS Code
- 29372900
- Hazardous Substances Data
- 72-33-3(Hazardous Substances Data)
- Toxicity
- LD50 oral in rat: > 10gm/kg
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H351Suspected of causing cancer
- Precautionary statements
-
P201Obtain special instructions before use.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313IF exposed or concerned: Get medical advice/attention.
N-Bromosuccinimide Price
- Product number
- 855871
- Product name
- Mestranol
- Purity
- 99%
- Packaging
- 500mg
- Price
- $79
- Updated
- 2024/03/01
- Product number
- 1394008
- Product name
- Mestranol
- Purity
- United States Pharmacopeia (USP) Reference Standard
- Packaging
- 200mg
- Price
- $164.8
- Updated
- 2024/03/01
- Product number
- 23822
- Product name
- Mestranol
- Purity
- ≥98%
- Packaging
- 10mg
- Price
- $26
- Updated
- 2024/03/01
- Product number
- 23822
- Product name
- Mestranol
- Purity
- ≥98%
- Packaging
- 50mg
- Price
- $98
- Updated
- 2024/03/01
- Product number
- M0600000
- Product name
- Mestranol
- Purity
- European Pharmacopoeia (EP) Reference Standard
- Packaging
- m0600000
- Price
- $60
- Updated
- 2024/03/01
17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether Chemical Properties,Usage,Production
Chemical Properties
Crystalline Solid
Originator
Enovid ,Searle ,US ,1957
Uses
Pharmacological estrogen molecule
Uses
Mestranol is an orally active estrogenic steroid. It was the estrogen used in many of the first oral contraceptives
Uses
antiemetic
Definition
ChEBI: A terminal acetylenic compound that is (17alpha)-17-ethynylestra-1(10),2,4-triene substituted by a methoxy group at position 3 and a hydroxy group at position 17.
Manufacturing Process
A stirred solution of 120 parts of 3-methoxy-δ1,3,5-estratrien-17-one in 2,600 parts of anhydrous toluene and 4,300 parts of anhydrous ether is saturated with a slow stream of acetylene. In the course of 30 minutes there is added a solution of 120 parts of potassium tert-amylate in 2,800 parts of anhydrous tert-pentanol. The passage of acetylene and stirring are continued for an additional 5 hours after which the reaction mixture is washed 5 times with 3,000-part portions of saturated ammonium chloride solution and then with water. It is then dried over anhydrous sodium sulfate and concentrated to dryness under vacuum. The residue is recrystallized from methanol. The 3- methoxy-17-ethynyl-δ1,3,5 estratrien-17-ol thus obtained melts at about 143° to 146°C. A further recrystallization from acetone yields crystals melting at about 150° to 151°C.
Therapeutic Function
Estrogen
Safety Profile
Confirmed carcinogen with experimental. neoplastigenic, tumorigenic, and teratogenic data. Moderately toxic by subcutaneous route. Human reproductive effects by ingestion: changes in ovaries and fallopian tubes, ferthty effects. Experimental reproductive effects. Mutation data reported. An FDA proprietary drug. A steroid used in oral contraceptives. When heated to decomposition it emits acrid smoke and irritating fumes.
17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether Preparation Products And Raw materials
Raw materials
Preparation Products
17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether Suppliers
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View Lastest Price from 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether manufacturers
- Product
- mestranol 72-33-3
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50TONS
- Release date
- 2023-04-19
- Product
- mestranol 72-33-3
- Price
- US $1.00/g
- Min. Order
- 10g
- Purity
- 99.5%
- Supply Ability
- 1000kg
- Release date
- 2022-01-12
- Product
- mestranol 72-33-3
- Price
- US $9.90-7.70/g
- Min. Order
- 10g
- Purity
- 99.99%HPLC.USP42
- Supply Ability
- 1000kgs
- Release date
- 2022-02-22