Triethyl orthoformate
Also known as: Triethoxymethane, Ethyl orthoformate, Orthoformic acid triethyl ester, 1,1,1-Triethoxymethane
Triethyl orthoformate (CAS 122-51-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H16O3 and a molecular weight of 148.200 g/mol. Key properties include a melting point of −76 °C(lit.), a boiling point of 142.5±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 30.0±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 122-51-0
- Jingsj CID
- J-32813-2
- Molecular Formula
- C7H16O3
- Molecular Weight
- 148.200 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −76 °C(lit.) |
|---|---|
| Boiling Point | 142.5±0.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 30.0±0.0 °C |
| Exact Mass | 148.109940 |
| PSA | 27.69000 |
| LogP | 2.14 |
| Additional Property | 5.11 (vs air) |
| Vapor Pressure | 7.0±0.2 mmHg at 25°C |
| Refractive Index | 1.400 |
| Additional Property | 1.35 g/L |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 2909199090 |
|---|---|
| Summary | 2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Triethyl orthoformate?
The CAS number of Triethyl orthoformate is 122-51-0.
What are the molecular formula and molecular weight of Triethyl orthoformate?
Triethyl orthoformate has molecular formula C7H16O3 and molecular weight 148.200 g/mol.
Is Triethyl orthoformate hazardous?
Triethyl orthoformate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
What are the upstream and downstream products of Triethyl orthoformate?
For Triethyl orthoformate, Upstream Products: Ethanol, Trimethyl orthoformate, 1H-pyrazole-5-carbohydrazide; Downstream Products: 2-Butene, 1,1-diethoxy-, 2-phenyl-1,3,4-oxadiazole, Ethanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Triethyl orthoformate (CAS 122-51-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32813-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.