Trimethyl orthobutyrate
Also known as: 1,1,1-Trimethoxybutane, Trimethyl orthobutylate, Orthobutyric acid trimethyl ester, Ortho-n-butyric acid trimethyl ester, Butane, 1,1,1-trimethoxy-
Trimethyl orthobutyrate (CAS 43083-12-1) 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 boiling point of 146.0±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 35.0±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 43083-12-1
- Jingsj CID
- J-3423-1
- 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
| Boiling Point | 146.0±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 35.0±0.0 °C |
| Exact Mass | 148.109940 |
| PSA | 27.69000 |
| LogP | 1.96 |
| Vapor Pressure | 6.0±0.2 mmHg at 25°C |
| Refractive Index | 1.401 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 Trimethyl orthobutyrate?
The CAS number of Trimethyl orthobutyrate is 43083-12-1.
What are the molecular formula and molecular weight of Trimethyl orthobutyrate?
Trimethyl orthobutyrate has molecular formula C7H16O3 and molecular weight 148.200 g/mol.
Is Trimethyl orthobutyrate hazardous?
Trimethyl orthobutyrate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Trimethyl orthobutyrate?
For Trimethyl orthobutyrate, Downstream Products: 2-Propyl-1H-imidazole-4,5-dicarboxylic acid, 2-Propyl-1H-imidazole-4,5-dicarbonitrile, 2-Butyl-1H-imidazole-4,5-dicarbonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethyl orthobutyrate (CAS 43083-12-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3423-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.