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Impurities and reference standards

4-Methylcholesterol

Also known as Cholesterol Impurity 43, (3S,8S,9S,10R,13R,14S,17R)-4,10,13-trimethyl-17-((R)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

CAS 71075-32-6Formula C28H48OMolar mass 400.69 g/mol
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4-Methylcholesterol chemical structure, C28H48O, CAS 71075-32-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
71075-32-6
Formula
C28H48O
Molar mass
400.69 g/mol
HS code
290613
Category
Impurities and reference standards

What is 4-Methylcholesterol?

Plain description, key identifiers and synonyms

4-Methylcholesterol is a chemical substance with the molecular formula C28H48O and a molar mass of 400.69 g/mol. Its CAS registry number is 71075-32-6. The IUPAC name is (3S,8S,9S,10R,13R,14S,17R)-4,10,13-trimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3S,8S,9S,10R,13R,14S,17R)-4,10,13-trimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol
CAS number
71075-32-6
Molecular formula
C28H48O
InChIKey
PZELUKPNJYWGOY-SGVIZOHCSA-N
InChI
InChI=1S/C28H48O/c1-18(2)8-7-9-19(3)22-12-13-24-21-10-11-23-20(4)26(29)15-17-28(23,6)25(21)14-16-27(22,24)5/h11,18-22,24-26,29H,7-10,12-17H2,1-6H3/t19-,20?,21+,22-,24+,25+,26+,27-,28+/m1/s1
Canonical SMILES
CC(C)CCCC(C)C1CCC2C3CC=C4C(C)C(O)CCC4(C)C3CCC12C
Isomeric SMILES
CC1[C@H](CC[C@]2(C1=CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@@H]4[C@H](C)CCCC(C)C)C)C)O

Synonyms

  • Cholesterol Impurity 43
  • (3S,8S,9S,10R,13R,14S,17R)-4,10,13-trimethyl-17-((R)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

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
400.69 g/molcalc.
Exact mass
400.3705 Dacalc.
LogP (octanol/water)
7.63calc.
Topological polar surface area
20.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
5calc.
Heavy atoms
29calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.93calc.
Formal charge
0calc.
Stereocentres
9calc.
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, C1=C2CCCCC2C2CCC3CCCC3C2C1

C1=C2CCCCC2C2CCC3CCCC3C2C1

4 rings, 17 atoms.

1,163 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.

4-Methylcholesterol suppliers

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4-Methylcholesterol 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 4-Methylcholesterol is traded under.

HS 2906.13Indicative HS code

Sterols and inositols

World exports in 2024
$316M
−12.1% vs 2023, imports $291M
2019 to 2024
Top exporters
  1. China42.0%
  2. United States16.4%
  3. Netherlands9.6%
Top importers
  1. Ecuador * partner reported13.0%
  2. China13.0%
  3. United States9.4%

* Partner reported figures, a lower bound.

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

The HS code shown for 4-Methylcholesterol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 4-Methylcholesterol, based on the data on this page

What is 4-Methylcholesterol?

4-Methylcholesterol is a chemical substance with the molecular formula C28H48O and a molar mass of 400.69 g/mol. Its CAS registry number is 71075-32-6. The IUPAC name is (3S,8S,9S,10R,13R,14S,17R)-4,10,13-trimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol.

What is the CAS number of 4-Methylcholesterol?

The CAS registry number of 4-Methylcholesterol is 71075-32-6.

What is the molecular formula and weight of 4-Methylcholesterol?

The molecular formula of 4-Methylcholesterol is C28H48O and its molar mass is 400.69 g/mol.

Is 4-Methylcholesterol hazardous?

No GHS hazard classification for 4-Methylcholesterol 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 4-Methylcholesterol?

4-Methylcholesterol is usually classified under HS code 290613 (Sterols and inositols). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 4-Methylcholesterol?

Post a free request on CompoundList and suppliers of 4-Methylcholesterol will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 4-Methylcholesterol?

Suppliers quote 4-Methylcholesterol 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 4-Methylcholesterol

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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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