Mestranol
Also known as: 17α-Ethynylestradiol 3-methyl ether, 17α-Ethynyl-3-methoxy-1,3,5(10)-estratrien-17β-ol, 3-Methoxy-17α-ethynylestradiol, Ethynylestradiol 3-methyl ether, Devocin, Norquen, Ovastol, SC 4725, RS 1044, d-MVE, EE3ME, (8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-ol, (17α)-3-Methoxy-19-norpregna-1,3,5(10)-trien-20-yn-17-ol
Mestranol (CAS 72-33-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C21H26O2 and a molecular weight of 310.430 g/mol. Key properties include a melting point of 153-155 °C(lit.), a boiling point of 442.3±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 190.8±23.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H351 — Suspected of causing cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 72-33-3
- Jingsj CID
- J-47484-7
- Molecular Formula
- C21H26O2
- Molecular Weight
- 310.430 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 153-155 °C(lit.) |
|---|---|
| Boiling Point | 442.3±45.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 190.8±23.0 °C |
| Exact Mass | 310.193268 |
| PSA | 29.46000 |
| LogP | 5.17 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.591 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H351 — Suspected of causing cancer
Activity & Biological Data
| Additional Information | [1]. Goldzieher, J.W., T.S. Dozier, and A. de la Pena, Plasma levels and pharmacokinetics of ethynyl estrogens in various populations: II. Mestranol. Contraception, 1980. 21(1): p. 17-27. |
|---|
Frequently Asked Questions
What is the CAS number of Mestranol?
The CAS number of Mestranol is 72-33-3.
What are the molecular formula and molecular weight of Mestranol?
Mestranol has molecular formula C21H26O2 and molecular weight 310.430 g/mol.
Is Mestranol hazardous?
Mestranol has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H351 — Suspected of causing cancer.
What are the upstream and downstream products of Mestranol?
For Mestranol, Upstream Products: Estrone 3-methyl ether, Trimethylsilylacetylene, Ethinyl estradiol; Downstream Products: Ethinyl estradiol, Estrone 3-methyl ether.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Mestranol (CAS 72-33-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47484-7 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.