Di-tert-butyl oxalate
二叔丁基草酸酯
Also known as: Bis(1,1-dimethylethyl) oxalate, Di-t-butyl Oxalate, Oxalic acid di-tert-butyl ester, Ditert-butyl ethanedioate, Oxalic acid bis(1,1-dimethylethyl) ester, Ethanedioic acid, 1,2-bis(1,1-dimethylethyl) ester
Di-tert-butyl oxalate (CAS 691-64-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H18O4 and a molecular weight of 202.24800 g/mol. It is also known as Bis(1,1-dimethylethyl) oxalate, Di-t-butyl Oxalate and Oxalic acid di-tert-butyl ester. Key properties include a melting point of 69-72ºC(lit.), a boiling point of 229.3ºC at 760 mmHg, a density of 1.007g/cm3 and a flash point of 90ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 691-64-5
- Jingsj CID
- J-25579-8
- Molecular Formula
- C10H18O4
- Chinese Name
- 二叔丁基草酸酯
- Molecular Weight
- 202.24800 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 69-72ºC(lit.) |
|---|---|
| Boiling Point | 229.3ºC at 760 mmHg |
| Density | 1.007g/cm3 |
| Flash Point | 90ºC |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Di-tert-butyl oxalate?
The CAS number of Di-tert-butyl oxalate is 691-64-5.
What are the molecular formula and molecular weight of Di-tert-butyl oxalate?
Di-tert-butyl oxalate has molecular formula C10H18O4 and molecular weight 202.24800 g/mol.
Is Di-tert-butyl oxalate hazardous?
Di-tert-butyl oxalate has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Di-tert-butyl oxalate (CAS 691-64-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25579-8 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.