1,1,1-Trimethoxyethane
Also known as: Trimethyl orthoacetate, Methyl orthoacetate, Orthoacetic acid trimethyl ester, TMOA, CH3C(OCH3)3
1,1,1-Trimethoxyethane (CAS 1445-45-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H12O3 and a molecular weight of 120.147 g/mol. Key properties include a melting point of -58ºC, a boiling point of 108.0±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 16.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1445-45-0
- Jingsj CID
- J-19052-3
- Molecular Formula
- C5H12O3
- Molecular Weight
- 120.147 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -58ºC |
|---|---|
| Boiling Point | 108.0±0.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 16.7±0.0 °C |
| Exact Mass | 120.078644 |
| PSA | 27.69000 |
| LogP | 0.90 |
| Vapor Pressure | 30.9±0.1 mmHg at 25°C |
| Refractive Index | 1.384 |
| Additional Property | HYDROLYSIS |
GHS Safety & Compliance
- H225 — Highly 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 1,1,1-Trimethoxyethane?
The CAS number of 1,1,1-Trimethoxyethane is 1445-45-0.
What are the molecular formula and molecular weight of 1,1,1-Trimethoxyethane?
1,1,1-Trimethoxyethane has molecular formula C5H12O3 and molecular weight 120.147 g/mol.
Is 1,1,1-Trimethoxyethane hazardous?
1,1,1-Trimethoxyethane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour.
What are the upstream and downstream products of 1,1,1-Trimethoxyethane?
For 1,1,1-Trimethoxyethane, Upstream Products: Methyl acetate, Trimethyl orthoformate, Methanol; Downstream Products: Methyl 1-methyl-1,2,3-triazole-5-carboxylate, Methyl 2-methyl-2H-1,2,3-triazole-4-carboxylate, 6-Fluoro-2-methylbenzoxazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,1,1-Trimethoxyethane (CAS 1445-45-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19052-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.