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Steroids and sterols

Lynestrenol

Also known as Linestrenol, Ethinylestrenol, Lynoestrenol

CAS 52-76-6Formula C20H28OMolar mass 284.44 g/molEC 200-151-4
GHS signal word: Danger. Pictograms: Harmful or irritant, Serious health hazard 29 suppliers listed
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Lynestrenol chemical structure, C20H28O, CAS 52-76-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
52-76-6
Formula
C20H28O
Appearance
Solid
Melting point
158 to 160
HS code
293723
Category
Steroids and sterols
Illustrative photo, closed blue fibre drums on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Lynestrenol?

Plain description, key identifiers and synonyms

Lynestrenol is a steroid. It derives from a hydride of an estrane.

Identifiers

Registry numbers, names and line notations, tap to copy

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
CAS number
52-76-6 CAS number cross-checked
EC number
200-151-4
Molecular formula
C20H28O
UNII
N2Z8ALG4U5
MDL number
MFCD00051135
InChIKey
YNVGQYHLRCDXFQ-XGXHKTLJSA-N
InChI
InChI=1S/C20H28O/c1-3-20(21)13-11-18-17-9-8-14-6-4-5-7-15(14)16(17)10-12-19(18,20)2/h1,6,15-18,21H,4-5,7-13H2,2H3/t15-,16+,17+,18-,19-,20-/m0/s1
Canonical SMILES
C#CC1(O)CCC2C3CCC4=CCCCC4C3CCC21C
Isomeric SMILES
C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=CCCC[C@H]34

Synonyms

  • Linestrenol
  • Ethinylestrenol
  • Lynoestrenol
  • Orgametril
  • Ethynylestrenol
  • Orgametil
  • 3-Desoxynorlutin
  • Linestrenolo
  • Lynestrenolum
  • 17alpha-Ethynylestrenol
  • 19-Nor-17alpha-pregn-4-en-20-yn-17-ol
  • 19-norpregn-4-en-20-yn-17alpha-ol
  • Linesterol
  • Orgametrol
  • Exluton
  • Exlutona
  • Endometril
  • Exlution
  • Org 485-50
  • IND 1006
  • (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
  • Exluten
  • 17alpha-Ethynyl-19-nor-4-androsten-17beta-ol
  • 19-Norpregn-4-en-20-yn-17-ol, (17alpha)-
  • Ethynloestrenol
Show all 33 synonyms
  • Estr-4-en-17beta-ol, 17-ethynyl-
  • Lynenol
  • Lynstranol
  • Ethinyloestranol
  • Ethinyl oestrenol
  • delta4-17alpha-Ethinylestren-17beta-ol
  • 17-alpha-Ethynylestrenol
  • 17-alpha-Ethynyloestrenol

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Solidexp.
Melting point
158 to 160exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
284.44 g/molcalc.
Exact mass
284.214 Dacalc.
LogP (octanol/water)
4.31calc.
Topological polar surface area
20.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
21calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.8calc.
Formal charge
0calc.
Stereocentres
6calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1=C2CCC3C4CCCC4CCC3C2CCC1

C1=C2CCC3C4CCCC4CCC3C2CCC1

4 rings, 17 atoms.

99 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H302Harmful if swallowed.
  • H340May cause genetic defects.
  • H351Suspected of causing cancer.
  • H360FdMay damage fertility. Suspected of damaging the unborn child.
  • H372Causes damage to organs through prolonged or repeated exposure.
Precautionary statements (11)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P330Rinse mouth.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Lynestrenol suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 29 suppliers
29 of 29 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

29 suppliers in 9 countries

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Lynestrenol price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Therapeutic category: Progestogen. In combination with estrogen as oral contraceptive.

Pharmacological actions

  • Contraceptives, Oral, Hormonal
  • Contraceptives, Oral, Synthetic

How it is made

By treatment of 19-nortestosterone with ethane-1,2-dithiol and boron trifluoride to give the 3-thioketal, treatment with sodium in liquid ammonia gives 17beta-hydroxyestr-4-ene, which by oxidation with chromic acid gives estr-4-en-17-one. This can be converted to lynestrenol by treatment with lithium acetylide or Grignard reagent. Whether this is the method used for commercial production is not known.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Lynestrenol is traded under.

HS 2937.23Indicative HS code

Oestrogens and progestogens

World exports in 2024
$762M
−2.3% vs 2023, imports $693M
2019 to 2024
Top exporters
  1. China42.9%
  2. Italy18.4%
  3. Netherlands8.9%
Top importers
  1. India * partner reported12.1%
  2. United States11.0%
  3. Belgium8.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Lynestrenol is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Lynestrenol, based on the data on this page

What is Lynestrenol?

Lynestrenol is a steroid. It derives from a hydride of an estrane.

What is the CAS number of Lynestrenol?

The CAS registry number of Lynestrenol is 52-76-6.

What is the molecular formula and weight of Lynestrenol?

The molecular formula of Lynestrenol is C20H28O and its molar mass is 284.44 g/mol.

What is Lynestrenol used for?

Therapeutic category: Progestogen. In combination with estrogen as oral contraceptive.

Is Lynestrenol hazardous?

Lynestrenol carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may cause genetic defects, suspected of causing cancer. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Lynestrenol?

Lynestrenol is usually classified under HS code 293723 (Oestrogens and progestogens). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Lynestrenol?

CompoundList lists 29 suppliers of Lynestrenol in China, United States, Czech Republic, Spain and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Lynestrenol in India?

1 supplier in India list Lynestrenol on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Lynestrenol?

Suppliers quote Lynestrenol on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Lynestrenol

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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