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δ-Decalactone

Also known as: 5-Decanolide, 5-HYDROXYDECANOIC ACID DELTA-LACTONE, 6-Pentyltetrahydro-2H-pyran-2-one, 6-pentyloxan-2-one, AMYL-DELTA-VALEROLACTONE, δ-Caprinolactone, delta-Decanolactone, (+/-)-5-DECANOLIDE, (+/-)-6-PENTYLTETRAHYDRO-2H-PYRAN-2-ONE, 2H-Pyran-2-one, tetrahydro-6-pentyl-, 5-Hydroxydecanoic acid lactone, MFCD00006649, UNII:CNA0S5T234

δ-Decalactone (CAS 705-86-2) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C10H18O2 and a molecular weight of 170.249 g/mol. Key properties include a melting point of −27 °C(lit.), a boiling point of 267.2±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 106.1±15.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
705-86-2
Jingsj CID
J-8755-5
Molecular Formula
C10H18O2
Molecular Weight
170.249 g/mol
Category
Esters
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−27 °C(lit.)
Boiling Point267.2±8.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point106.1±15.9 °C
Exact Mass170.130676
PSA26.30000
LogP2.42
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.443

Activity & Biological Data

Additional Information[1]. Y Karagül-Yüceer, et al. Aroma-active components of nonfat dry milk. J Agric Food Chem. 2001 Jun;49(6):2948-53. [2]. Hirotoshi Tamura, et al. Authenticity assessment of gamma- and delta-decalactone from prunus fruits by gas chromatography combustion/pyrolysis isotope ratio mass spectrometry (GC-C/P-IRMS). J Agric Food Chem. 2005 Jun 29;53(13):5397-401.

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of δ-Decalactone?

The CAS number of δ-Decalactone is 705-86-2.

What are the molecular formula and molecular weight of δ-Decalactone?

δ-Decalactone has molecular formula C10H18O2 and molecular weight 170.249 g/mol.

What are the upstream and downstream products of δ-Decalactone?

For δ-Decalactone, Upstream Products: 4-nonanol, 4-Methyl-1-pentanol, 1-Nonen-4-ol; Downstream Products: 3-Nonen-2-one, 2,4-Nonanedione, Phenethyl alcohol.

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

Last updated:

How to cite: Jingsj. "δ-Decalactone (CAS 705-86-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8755-5 (accessed 2026-11-07).

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