tert-Butyl methyl malonate
Also known as: Methyl tert-butyl malonate, Malonic acid 1-methyl 3-tert-butyl ester, Malonic acid 1-tert-butyl 3-methyl ester, Propanedioic acid 1-(1,1-dimethylethyl) 3-methyl ester, Propanedioic acid 1,1-dimethylethyl methyl ester, tert-Butyl methylmalonate, TERT-BUTYL METHYL MALONATE, T-BUTYL METHYL MALONATE, 3-O-tert-butyl 1-O-methyl propanedioate, MFCD00042856
tert-Butyl methyl malonate (CAS 42726-73-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H14O4 and a molecular weight of 174.194 g/mol. Key properties include a melting point of -10ºC, a boiling point of 197.7±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 79.4±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 42726-73-8
- Jingsj CID
- J-44472-4
- Molecular Formula
- C8H14O4
- Molecular Weight
- 174.194 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -10ºC |
|---|---|
| Boiling Point | 197.7±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 79.4±0.0 °C |
| Exact Mass | 174.089203 |
| PSA | 52.60000 |
| LogP | 0.87 |
| Appearance | Liquid | Clear colorless to slightly yellow |
| Vapor Pressure | 0.4±0.3 mmHg at 25°C |
| Refractive Index | 1.422 |
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of tert-Butyl methyl malonate?
The CAS number of tert-Butyl methyl malonate is 42726-73-8.
What are the molecular formula and molecular weight of tert-Butyl methyl malonate?
tert-Butyl methyl malonate has molecular formula C8H14O4 and molecular weight 174.194 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "tert-Butyl methyl malonate (CAS 42726-73-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44472-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.