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Steroids and sterols

Plomestane

Also known as Plomestano, MDL 18,962, 10-(2-Propynyl)estr-4-ene-3,17-dione

CAS 77016-85-4Formula C21H26O2Molar mass 310.44 g/mol
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Plomestane chemical structure, C21H26O2, CAS 77016-85-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
77016-85-4
Formula
C21H26O2
Molar mass
310.44 g/mol
HS code
291429
Category
Steroids and sterols

What is Plomestane?

Plain description, key identifiers and synonyms

Plomestane is a chemical substance with the molecular formula C21H26O2 and a molar mass of 310.44 g/mol. Its CAS registry number is 77016-85-4. The IUPAC name is (8R,9S,10S,13S,14S)-13-methyl-10-prop-2-ynyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(8R,9S,10S,13S,14S)-13-methyl-10-prop-2-ynyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione
CAS number
77016-85-4
Molecular formula
C21H26O2
UNII
FL3VS913TW
InChIKey
JKPDEYAOCSQBSZ-OEUJLIAZSA-N
InChI
InChI=1S/C21H26O2/c1-3-10-21-12-8-15(22)13-14(21)4-5-16-17-6-7-19(23)20(17,2)11-9-18(16)21/h1,13,16-18H,4-12H2,2H3/t16-,17-,18-,20-,21-/m0/s1
Canonical SMILES
C#CCC12CCC(=O)C=C1CCC1C3CCC(=O)C3(C)CCC12
Isomeric SMILES
C[C@]12CC[C@H]3[C@H]([C@@H]1CCC2=O)CCC4=CC(=O)CC[C@]34CC#C

Synonyms

  • Plomestano
  • MDL 18,962
  • 10-(2-Propynyl)estr-4-ene-3,17-dione
  • 10-propargylestr-4-ene-3,17-dione
  • Estr-4-ene-3,17-dione, 10-(2-propynyl)-
  • plomestanum
  • 19-acetylenic androstenedione
  • MDL 18962
  • MDL-18,962
  • 10-propargylandrost-4-ene-3,17-dione
  • (8R,9S,10S,13S,14S)-13-methyl-10-prop-2-ynyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione
  • Plomestane (USAN/INN)
  • 10beta-propargyl-estra-4-ene-3,17-dione
  • 10-(2-propynyl)-estr-4-ene-3,17-dione
  • 10-(2-Propynl)-estr-4-ene-3,17-dione
  • (3aS,3bR,9aS,9bS,11aS)-11a-Methyl-9a-(prop-2-yn-1-yl)-2,3,3a,4,5,8,9,9a,9b,10,11,11a-dodecahydro-1H-cyclopenta[a]phenanthrene-1,7(3bH)-dione

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
310.44 g/molcalc.
Exact mass
310.1933 Dacalc.
LogP (octanol/water)
4.09calc.
Topological polar surface area
34.14 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
1calc.
Heavy atoms
23calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.71calc.
Formal charge
0calc.
Stereocentres
5calc.
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, O=C1C=C2CCC3C4CCC(=O)C4CCC3C2CC1

O=C1C=C2CCC3C4CCC(=O)C4CCC3C2CC1

4 rings, 19 atoms.

92 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Plomestane suppliers

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Where suppliers are based

1 supplier in 1 country

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Plomestane price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Antineoplastic Agents
  • Aromatase Inhibitors

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 Plomestane is traded under.

HS 2914.29Indicative HS code

Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function, other

World exports in 2024
$1B
+6.6% vs 2023, imports $980M
2019 to 2024
Top exporters
  1. China32.5%
  2. India * partner reported12.9%
  3. Germany12.3%
Top importers
  1. United States15.7%
  2. Japan8.7%
  3. Germany8.7%

* Partner reported figures, a lower bound.

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

The HS code shown for Plomestane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Plomestane?

Plomestane is a chemical substance with the molecular formula C21H26O2 and a molar mass of 310.44 g/mol. Its CAS registry number is 77016-85-4. The IUPAC name is (8R,9S,10S,13S,14S)-13-methyl-10-prop-2-ynyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione.

What is the CAS number of Plomestane?

The CAS registry number of Plomestane is 77016-85-4.

What is the molecular formula and weight of Plomestane?

The molecular formula of Plomestane is C21H26O2 and its molar mass is 310.44 g/mol.

What is Plomestane used for?

Known uses and roles of Plomestane include antineoplastic agents and aromatase inhibitors.

Is Plomestane hazardous?

No GHS hazard classification for Plomestane is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Plomestane?

Plomestane is usually classified under HS code 291429 (Cyclanic, cyclenic or cycloterpenic ketones without other oxygen function, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Plomestane?

CompoundList lists 1 supplier of Plomestane in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Plomestane?

Suppliers quote Plomestane 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

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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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