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Chemical structure of 4,4'-(Ethyne-1,2-diyl)diphthalic anhydride

GB55602

4,4'-(Ethyne-1,2-diyl)diphthalic anhydride

Also known as 5-[2-(1,3-dioxo-2-benzofuran-5-yl)ethynyl]-2-benzofuran-1,3-dione

4,4'-(Ethyne-1,2-diyl)diphthalic anhydride (catalogue number GB55602) is a research-grade chemical available from LABO Scientific in Israel, CAS registry number 129808-00-0. Molecular formula C18H6O6, molecular weight 318.24. IUPAC name: 5-[2-(1,3-dioxo-2-benzofuran-5-yl)ethynyl]-2-benzofuran-1,3-dione. Supplied as 25g at ₪2,157.75; the final price is confirmed on your quote, and the lot certificate of analysis and safety data sheet are emailed with your order confirmation.

ChemicalCAS129808-00-0MW318.24FormulaC18H6O6
CAS number
129808-00-0
Molecular weight
318.24
Formula
C18H6O6
InChIKey
XGZRRDYHYZLYIJ-UHFFFAOYSA-N
Catalogue number
GB55602
Brand
GLPBIO
Computed properties PubChem CID 58986478 · XLogP 2.7 · TPSA 86.7 Ų · H-bond donors 0
XLogP
2.7
TPSA
86.7 Ų
H-bond donors
0
H-bond acceptors
6
Rotatable bonds
2
Heavy atoms
24

SMILES C1=CC2=C(C=C1C#CC3=CC4=C(C=C3)C(=O)OC4=O)C(=O)OC2=O

Computed descriptors from PubChem (CID 58986478), public domain. Identity cross-checked against the supplier's molecular formula and weight — verify before use.

Ordering in Israel

Lead time
Ships from the manufacturer to your lab in 8–14 business days; customs and cold chain handled by LABO Scientific.
Pricing
Quoted in ILS, excl. VAT. Add the item to your quote and we confirm the final price, usually the same business day.
Documents
Lot certificate of analysis and manufacturer SDS are emailed with your order confirmation.
Who we serve
Universities, hospitals and biotech companies across Israel. Research use only — not for diagnostic or therapeutic use.