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Tetradecanedioic acid

Also known as: 1,12-Dodecanedicarboxylic acid, 1,14-tetradecanedioic acid, Dodecanedicarboxylic acid, Tetradecane diacid, Tetradecandioic acid, DICARBOXYLIC ACID C14

Tetradecanedioic acid (CAS 821-38-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H26O4 and a molecular weight of 258.354 g/mol. Key properties include a melting point of 124-127 °C(lit.), a boiling point of 434.1±18.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 230.5±17.7 °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.
821-38-5
Jingsj CID
J-19404-7
Molecular Formula
C14H26O4
Molecular Weight
258.354 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point124-127 °C(lit.)
Boiling Point434.1±18.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point230.5±17.7 °C
Exact Mass258.183105
PSA74.60000
LogP3.99
Vapor Pressure0.0±2.2 mmHg at 25°C
Refractive Index1.475
Additional PropertySLIGHTLY SOLUBLE

GHS Safety & Compliance

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

Activity & Biological Data

Additional Information[1]. Santockyte R, et al. LC-MS/MS bioanalysis of plasma 1, 14-tetradecanedioic acid and 1, 16-hexadecanedioic acid as candidate biomarkers for organic anion-transporting polypeptide mediated drug-drug interactions. Bioanalysis. 2018 Sep 1;10(18):1473-1485.

Customs & Trade Information

HS Code2917190090
Summary2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Tetradecanedioic acid?

The CAS number of Tetradecanedioic acid is 821-38-5.

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

Tetradecanedioic acid has molecular formula C14H26O4 and molecular weight 258.354 g/mol.

Is Tetradecanedioic acid hazardous?

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

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

Last updated:

How to cite: Jingsj. "Tetradecanedioic acid (CAS 821-38-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19404-7 (accessed 2026-11-09).

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