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Home/Compounds/Pharmaceutical Intermediate/(3aR,4R,5R,6aS)-4-[3-(Ethyleneketal)decanyl]hexahydro-5-hydroxy-2H-cyclopenta[b]furan-2-one
C19H32O5
340.5 g/mol
Pharmaceutical Intermediate

(3aR,4R,5R,6aS)-4-[3-(Ethyleneketal)decanyl]hexahydro-5-hydroxy-2H-cyclopenta[b]furan-2-one

CAS118696-65-4
Category
Pharmaceutical Intermediate
Compound Class
Ester
Primary Use
Pharmaceutical Intermediate

This compound is a stereochemically defined intermediate containing a fused cyclopenta[b]furan-2-one core with a dioxolane side chain. It is primarily used as a reference standard for alprostadil impurity testing in pharmaceutical quality control.

Alprostadil impurity reference standardPharmaceutical intermediate for analytical research

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Customs Tariff Classification

The international HS code for (3aR,4R,5R,6aS)-4-[3-(Ethyleneketal)decanyl]hexahydro-5-hydroxy-2H-cyclopenta[b]furan-2-one (CAS 118696-65-4) is 2932.20.

HS code (international, 6-digit)

2932.20

EU CN code (8-digit)

2932 20 90

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

(3aR,4R,5R,6aS)-4-[2-(2-heptyl-1,3-dioxolan-2-yl)ethyl]-5-hydroxy-3,3a,4,5,6,6a-hexahydrocyclopenta[b]furan-2-one

InChIKey

ATVQZEZXTPHWTH-VQHPVUNQSA-N

SMILES

CCCCCCCC1(OCCO1)CC[C@H]2[C@@H](C[C@H]3[C@@H]2CC(=O)O3)O

Synonyms (4)

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