Norethisterone acetate
Also known as: Norethindrone acetate, 19-Norethindrone acetate, 17α-Ethynyl-19-nortestosterone acetate, 17β-Acetoxy-19-nor-17α-pregn-4-en-20-yn-3-one, 17-Acetoxy-19-nor-17α-pregn-4-en-20-yn-3-one, 17α-Ethinyl-19-nortestosterone acetate, 19-nor-17α-Pregn-4-en-20-yn-3-one, 17-acetoxy-, 4-ESTREN-17-ALPHA-ETHYNYL-17-BETA-OL-3-ONE ACETATE, ACETIC ACID 17-ETHYNYL-13-METHYL-3-OXO-2,3,6,7,8,9,10,11,12,13,14,15,16,17-TETRADECAHYDRO-1H-CYCLOPE, Aygestin, Norlutate, Norlutin A, Norlutin acetate, Primolut-Nor, SH-420C, 19-NORETHISTERONE 17-ACETATE, Norethisteron acetate, Norethisterone 17-acetate, 17α-Ethynyl-17β-acetoxy-19-norandrost-4-en-3-one, 17α-Ethynyl-17-hydroxyestr-4-en-3-one acetate
Norethisterone acetate (CAS 51-98-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H28O3 and a molecular weight of 340.456 g/mol. Key properties include a boiling point of 454.7±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 197.1±28.8 °C. It is classified under GHS with signal word Warning and hazard statements H351 — Suspected of causing cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51-98-9
- Jingsj CID
- J-49109-8
- Molecular Formula
- C22H28O3
- Molecular Weight
- 340.456 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 454.7±45.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 197.1±28.8 °C |
| Exact Mass | 340.203857 |
| PSA | 43.37000 |
| LogP | 3.99 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.556 |
GHS Safety & Compliance
- H351 — Suspected of causing cancer
Activity & Biological Data
| Target | Progesterone Receptor[1] |
|---|---|
| Additional Information | [1]. Muneyyirci-Delale O, et al. Effect of norethindrone acetate in the treatment of symptomatic endometriosis. Int J Fertil Womens Med. 1998 Jan-Feb;43(1):24-7. [2]. Kaser DJ, et al. Use of norethindrone acetate alone for postoperative suppression of endometriosis symptoms. J Pediatr Adolesc Gynecol. 2012 Apr;25(2):105-8. [3]. Maier WE, et al. Pharmacology and toxicology of ethinyl estradiol and norethindrone acetate in experimental animals. Regul Toxicol Pharmacol. 2001 Aug;34(1):53-61. [4]. Cheng DC, et al. Norethindrone acetate inhibition of triglyceride synthesis and release by rat hepatocytes. Atherosclerosis. 1983 Jan;46(1):41-8. |
Customs & Trade Information
| HS Code | 2915299090 |
|---|---|
| Summary | 2915299090 salts of acetic acid。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:5.5%。general tariff:50.0% |
Frequently Asked Questions
What is the CAS number of Norethisterone acetate?
The CAS number of Norethisterone acetate is 51-98-9.
What are the molecular formula and molecular weight of Norethisterone acetate?
Norethisterone acetate has molecular formula C22H28O3 and molecular weight 340.456 g/mol.
Is Norethisterone acetate hazardous?
Norethisterone acetate has GHS signal word Warning and hazard statements H351 — Suspected of causing cancer.
What are the upstream and downstream products of Norethisterone acetate?
For Norethisterone acetate, Upstream Products: Norethindrone, acetic acid; Downstream Products: 19-Norprogesterone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Norethisterone acetate (CAS 51-98-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49109-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.