Octanoic anhydride
Also known as: Caprylic anhydride, N-CAPRYLIC ANHYDRIDE, N-OCTANOIC ANHYDRIDE, OCTANOIC ANHYDRIDE, Octanoic acid, anhydride, Octanoic acid, 1,1'-anhydride, Octanoyl anhydride, octanoyl octanoate, Bis(octanoic)anhydride, Biscaprylic anhydride, (Me(CH2)6CO)2O, caprylicanhydride(c8:0), Octansaeure-anhydrid, Octansureanhydrid, n-Caprylic Anhydride, n-Octanoic Anhydride, octanoic acid anhydride
Octanoic anhydride (CAS 623-66-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H30O3 and a molecular weight of 270.40800 g/mol. Key properties include a melting point of -1ºC, a boiling point of 282.5ºC at 760 mmHg, a density of 0.922 g/cm3 and a flash point of 142.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 623-66-5
- Jingsj CID
- J-1315582-3
- Molecular Formula
- C16H30O3
- Molecular Weight
- 270.40800 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -1ºC |
|---|---|
| Boiling Point | 282.5ºC at 760 mmHg |
| Density | 0.922 g/cm3 |
| Flash Point | 142.4ºC |
| Exact Mass | 270.21900 |
| PSA | 43.37000 |
| LogP | 4.77720 |
| Refractive Index | 1.444 |
Customs & Trade Information
| HS Code | 2915900090 |
|---|---|
| Summary | 2915900090 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 Octanoic anhydride?
The CAS number of Octanoic anhydride is 623-66-5.
What are the molecular formula and molecular weight of Octanoic anhydride?
Octanoic anhydride has molecular formula C16H30O3 and molecular weight 270.40800 g/mol.
What are the upstream and downstream products of Octanoic anhydride?
For Octanoic anhydride, Upstream Products: Octanoic acid, Octanal, Formic Acid; Downstream Products: Perfluorooctanoic Acid, monocaprylin, Octanal.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Octanoic anhydride (CAS 623-66-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1315582-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.