Date published: 2026-4-5

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Di-tert-butyl acetylenedicarboxylate (CAS 66086-33-7)

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Alternate Names:
2-Butynedioic acid di-tert-butyl ester; Di-tert-butyl 2-butynedioate
CAS Number:
66086-33-7
Molecular Weight:
226.27
Molecular Formula:
(CH3)3COCOC CCOOC(CH3)3
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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A versatile synthetic intermediate. The tert-butyl groups can easily be cleaved.(1),(2)


Di-tert-butyl acetylenedicarboxylate (CAS 66086-33-7) References

1. W. Sucrow, F. Lübbe Angew. Chem. 91, 157, (1979) 2. G. Weber et al. Chem. Ber. 113, 531, (1980)

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Di-tert-butyl acetylenedicarboxylate, 1 g

sc-252673
1 g
$54.00