C20H28O
284.4 g/mol
APIDanger
Linestrenol
CAS52-76-6EC200-151-4
Category
API
Compound Class
Steroid
Primary Use
Pharmaceutical Raw Material
Linestrenol is a progestin active pharmaceutical ingredient used in the manufacturing of hormonal contraceptive products and other pharmaceutical preparations. It is a synthetic steroid compound with a single alcohol functional group and no aromatic rings.
raw material for birth control pill manufacturingpharmaceutical component for gynecological therapy formulations
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 52-76-6
Related Compounds
ReferenceSame Category
Haloperidol
CAS52-86-8
pharmaceutical raw material
ReferenceSame Category
Diosmin
CAS520-27-4
pharmaceutical raw material
ReferenceSame Category
Apigenin
CAS520-36-5
pharmaceutical raw material
ReferenceSame Category
Echimidine
CAS520-68-3
pharmaceutical raw material
Referencesame scaffold
Allylestrenol
CAS432-60-0
pharmaceutical raw material
Referencesame scaffold
Ethynodiol diacetate
CAS297-76-7
pharmaceutical raw material
Safety Reference
Danger
H302Harmful if swallowed
H340May cause genetic defects
H351Suspected of causing cancer
H372Causes damage to organs through prolonged or repeated exposure
Regulatory Compliance1
- California Proposition 65USRegulation
Customs Tariff Classification
The international HS code for Linestrenol (CAS 52-76-6) is 2937.23.
HS code (international, 6-digit)
2937.23
EU CN code (8-digit)
2937 23 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol
InChIKey
YNVGQYHLRCDXFQ-XGXHKTLJSA-N
SMILES
C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=CCCC[C@H]34
Synonyms (54)
- Linestrenol [INN-Spanish]
- Lynestrenol (JAN/USAN)
- Lynestrenolum [INN-Latin]
- 17-Ethynylestr-4-en-17-ol
- 17-alpha-Ethynyloestrenol
- 17alpha-Ethynylestrenol
- 3-Desoxynorlutin
- Endometril
- Ethinyl oestrenol
- Ethinylestrenol
- Ethinyloestranol
- Ethynloestrenol
- Ethynylestrenol
- Exluten
- Exlution
- Exluton
- Exlutona
- LYNESTRENOL [MART.]
- Linesterol
- Linestrenol
- Linestrenolo
- Lynenol
- Lynestrenol CRS
- Lynestrenolum
- Lynoestrenol
- Lynoestrenol [Progestins]
- Lynstranol
- Org 485-50
- Orgametil
- Orgametril
- Orgametrol