Di-tert-butyl acetylenedicarboxylate
乙炔二羧酸二叔丁酯
Also known as: Di-tert-butyl 2-butynedioate, 2-Butynedioic acid di-tert-butyl ester, acetylenedicarboxylic acid di-tert-butyl ester, ditert-butyl but-2-ynedioate, Di-tert-butyl acetylenedicarboxylate
Di-tert-butyl acetylenedicarboxylate (CAS 66086-33-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H18O4 and a molecular weight of 226.26900 g/mol. It is also known as Di-tert-butyl 2-butynedioate, 2-Butynedioic acid di-tert-butyl ester and acetylenedicarboxylic acid di-tert-butyl ester. Key properties include a melting point of 33-37ºC(lit.), a boiling point of 80-82ºC0.05 mm Hg(lit.), a density of 1.042g/cm3 and a flash point of >230 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 66086-33-7
- Jingsj CID
- J-1067199-3
- Molecular Formula
- C12H18O4
- Chinese Name
- 乙炔二羧酸二叔丁酯
- Molecular Weight
- 226.26900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 33-37ºC(lit.) |
|---|---|
| Boiling Point | 80-82ºC0.05 mm Hg(lit.) |
| Density | 1.042g/cm3 |
| Flash Point | >230 °F |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Di-tert-butyl acetylenedicarboxylate?
The CAS number of Di-tert-butyl acetylenedicarboxylate is 66086-33-7.
What are the molecular formula and molecular weight of Di-tert-butyl acetylenedicarboxylate?
Di-tert-butyl acetylenedicarboxylate has molecular formula C12H18O4 and molecular weight 226.26900 g/mol.
Is Di-tert-butyl acetylenedicarboxylate hazardous?
Di-tert-butyl acetylenedicarboxylate has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Di-tert-butyl acetylenedicarboxylate (CAS 66086-33-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1067199-3 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.