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Steroids and sterols

Ponasterone C

Also known as Ponasteron, (2beta,3beta,5beta,22R,24S)-2,3,5,14,20,22,24-Heptahydroxycholest-7-en-6-one, 5beta-Cholest-7-en-6-one, 2beta,3beta,5,14,20,22,24-heptahydroxy-, (22R)-

CAS 26191-89-9Formula C27H44O8Molar mass 496.64 g/mol
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Ponasterone C chemical structure, C27H44O8, CAS 26191-89-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
26191-89-9
Formula
C27H44O8
Molar mass
496.64 g/mol
HS code
291440
Category
Steroids and sterols

What is Ponasterone C?

Plain description, key identifiers and synonyms

Ponasterone C has been reported in Blandfordia punicea, Lepidothamnus intermedius, and Rhaponticum carthamoides.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S,3R,5S,9R,10R,13R,14S,17S)-2,3,5,14-tetrahydroxy-10,13-dimethyl-17-[(2R,3R,5S)-2,3,5-trihydroxy-6-methylheptan-2-yl]-1,2,3,4,9,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-6-one
CAS number
26191-89-9
Molecular formula
C27H44O8
UNII
VMC65WQM7J
InChIKey
PXCOYCUFJMMDCP-CEPQAZHYSA-N
InChI
InChI=1S/C27H44O8/c1-14(2)17(28)11-21(31)25(5,33)20-7-9-26(34)16-10-22(32)27(35)13-19(30)18(29)12-24(27,4)15(16)6-8-23(20,26)3/h10,14-15,17-21,28-31,33-35H,6-9,11-13H2,1-5H3/t15-,17-,18-,19+,20-,21+,23+,24+,25+,26+,27+/m0/s1
Canonical SMILES
CC(C)C(O)CC(O)C(C)(O)C1CCC2(O)C3=CC(=O)C4(O)CC(O)C(O)CC4(C)C3CCC12C
Isomeric SMILES
CC(C)[C@H](C[C@H]([C@@](C)([C@H]1CC[C@@]2([C@@]1(CC[C@H]3C2=CC(=O)[C@]4([C@@]3(C[C@@H]([C@@H](C4)O)O)C)O)C)O)O)O)O

Synonyms

  • Ponasteron
  • (2beta,3beta,5beta,22R,24S)-2,3,5,14,20,22,24-Heptahydroxycholest-7-en-6-one
  • 5beta-Cholest-7-en-6-one, 2beta,3beta,5,14,20,22,24-heptahydroxy-, (22R)-
  • Cholest-7-en-6-one, 2,3,5,14,20,22,24-heptahydroxy-, (2beta,3beta,5beta,22R,24S)-

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
496.64 g/molcalc.
Exact mass
496.3036 Dacalc.
LogP (octanol/water)
0.82calc.
Topological polar surface area
158.7 Ųcalc.
Hydrogen bond donors
7calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
5calc.
Heavy atoms
35calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.89calc.
Formal charge
0calc.
Stereocentres
11calc.
Lipinski rule of five
Passes (1 violation)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=C2C3CCCC3CCC2C2CCCCC12

O=C1C=C2C3CCCC3CCC2C2CCCCC12

4 rings, 18 atoms.

113 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.

Ponasterone C suppliers

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Ponasterone C price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Ponasterone C is traded under.

HS 2914.40Indicative HS code

Ketone-alcohols and ketone-aldehydes

World exports in 2024
$199M
+2.5% vs 2023, imports $247M
2019 to 2024
Top exporters
  1. China29.5%
  2. Germany14.4%
  3. Netherlands12.7%
Top importers
  1. United States37.2%
  2. Netherlands8.5%
  3. Germany6.4%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Ponasterone C, based on the data on this page

What is Ponasterone C?

Ponasterone C has been reported in Blandfordia punicea, Lepidothamnus intermedius, and Rhaponticum carthamoides.

What is the CAS number of Ponasterone C?

The CAS registry number of Ponasterone C is 26191-89-9.

What is the molecular formula and weight of Ponasterone C?

The molecular formula of Ponasterone C is C27H44O8 and its molar mass is 496.64 g/mol.

Is Ponasterone C hazardous?

No GHS hazard classification for Ponasterone C 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 Ponasterone C?

Ponasterone C is usually classified under HS code 291440 (Ketone-alcohols and ketone-aldehydes). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ponasterone C?

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What is the price of Ponasterone C?

Suppliers quote Ponasterone C 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 Ponasterone C

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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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