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Aliphatic and alicyclic building blocks

Malvalic acid

Also known as Malvic acid, Halphen acid, 7-(2-octylcyclopropen-1-yl)heptanoic acid

CAS 503-05-9Formula C18H32O2Molar mass 280.45 g/mol
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Malvalic acid chemical structure, C18H32O2, CAS 503-05-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
503-05-9
Formula
C18H32O2
Molar mass
280.45 g/mol
HS code
291620
Category
Aliphatic and alicyclic building blocks

What is Malvalic acid?

Plain description, key identifiers and synonyms

Malvalic acid is a long-chain cyclopropenyl fatty acid comprising 8-heptadecenoic acid having a cyclopropene ring arising from the linking of C-8 and C-9 by a methylene substituent. It is a long-chain fatty acid, a cyclopropenyl fatty acid and a monounsaturated fatty acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
7-(2-octylcyclopropen-1-yl)heptanoic acid
CAS number
503-05-9 CAS number cross-checked
Molecular formula
C18H32O2
UNII
02AJQ7VS2H
InChIKey
HPSSZFFAYWBIPY-UHFFFAOYSA-N
InChI
InChI=1S/C18H32O2/c1-2-3-4-5-6-9-12-16-15-17(16)13-10-7-8-11-14-18(19)20/h2-15H2,1H3,(H,19,20)
SMILES (canonical and isomeric)
CCCCCCCCC1=C(C1)CCCCCCC(=O)O

Synonyms

  • Malvic acid
  • Halphen acid
  • 7-(2-octylcyclopropen-1-yl)heptanoic acid
  • 8,9-methylene-8Z-heptadecenoic acid
  • 2-Octyl-1-cyclopropene-1-heptanoic acid
  • 1-Cyclopropene-1-heptanoic acid, 2-octyl-
  • 7-(2-octylcycloprop-1-en-1-yl)heptanoic acid
  • 1-Cyclopropene-1-heptanoicacid, 2-octyl-
  • Malvalsaeure
  • 8,9-Methylen-8-heptadecensaeure
  • Malvic acid, Halphenic acid, Malvalinic acid, Halphen acid

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
280.45 g/molcalc.
Exact mass
280.2402 Dacalc.
LogP (octanol/water)
5.86calc.
Topological polar surface area
37.3 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
14calc.
Heavy atoms
20calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.83calc.
Formal charge
0calc.
Stereocentres
0calc.
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=CC1

C1=CC1

1 ring, 3 atoms, the Cyclopropene ring system.

194 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.

Malvalic acid suppliers

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Malvalic acid 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

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 Malvalic acid is traded under.

HS 2916.20Indicative HS code

Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides…

World exports in 2024
$489M
−6.1% vs 2023, imports $608M
2019 to 2024
Top exporters
  1. China45.5%
  2. India * partner reported18.6%
  3. Japan11.2%
Top importers
  1. Brazil20.3%
  2. United States15.7%
  3. India * partner reported12.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Malvalic acid, based on the data on this page

What is Malvalic acid?

Malvalic acid is a long-chain cyclopropenyl fatty acid comprising 8-heptadecenoic acid having a cyclopropene ring arising from the linking of C-8 and C-9 by a methylene substituent. It is a long-chain fatty acid, a cyclopropenyl fatty acid and a monounsaturated fatty acid.

What is the CAS number of Malvalic acid?

The CAS registry number of Malvalic acid is 503-05-9.

What is the molecular formula and weight of Malvalic acid?

The molecular formula of Malvalic acid is C18H32O2 and its molar mass is 280.45 g/mol.

What is Malvalic acid used for?

Known uses and roles of Malvalic acid include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Malvalic acid hazardous?

No GHS hazard classification for Malvalic acid 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 Malvalic acid?

Malvalic acid is usually classified under HS code 291620 (Cyclanic, cyclenic or cycloterpenic monocarboxylic acids, their anhydrides, halides…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Malvalic acid?

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

What is the price of Malvalic acid?

Suppliers quote Malvalic acid 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 Malvalic acid

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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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