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Decanoic acid

Also known as: Capric acid, n-Decanoic acid, n-Decylic acid, C10:0, 1-Carboxynonane

Decanoic acid (CAS 334-48-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H20O2 and a molecular weight of 172.265 g/mol. Key properties include a melting point of 27-32 °C(lit.), a boiling point of 269.6±3.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 121.8±11.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
334-48-5
Jingsj CID
J-33636-1
Molecular Formula
C10H20O2
Molecular Weight
172.265 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point27-32 °C(lit.)
Boiling Point269.6±3.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point121.8±11.9 °C
Exact Mass172.146332
PSA37.30000
LogP3.96
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.443
Additional Property0.15 g/L (20 º C)

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. Chang P, et al. Seizure control by decanoic acid through direct AMPA receptor inhibition. Brain. 2016 Feb;139(Pt 2):431-43.

Customs & Trade Information

HS Code2915900090
Summary2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Decanoic acid?

The CAS number of Decanoic acid is 334-48-5.

What are the molecular formula and molecular weight of Decanoic acid?

Decanoic acid has molecular formula C10H20O2 and molecular weight 172.265 g/mol.

Is Decanoic acid hazardous?

Decanoic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Decanoic acid?

For Decanoic acid, Upstream Products: Decan-1-ol, 1-Nonen-4-ol, Decanal.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Decanoic acid (CAS 334-48-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33636-1 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.