(4Z,4aR,7R,8aR)-4-Ethylidene-3,4,4a,7,8,8a-hexahydro-8-methylene-5-(1-methylethyl)-3-oxo-1H-2-benzopyran-7-yl (2E)-3-methyl-2-pentenoate

(4Z,4aR,7R,8aR)-4-亚乙基-3,4,4a,7,8,8a-六氢-8-亚甲基-5-(1-甲基乙基)-3-氧代-1H-2-苯并吡喃-7-基 (2E)-3-甲基-2-戊烯酸酯

(4Z,4aR,7R,8aR)-4-Ethylidene-3,4,4a,7,8,8a-hexahydro-8-methylene-5-(1-methylethyl)-3-oxo-1H-2-benzopyran-7-yl (2E)-3-methyl-2-pentenoate (CAS 189389-03-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C21H28O4 and a molecular weight of 344.4 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 189389-03-5
Jingsj CID: J-565503-4
Molecular Formula: C₂₁H₂₈O₄
Chinese Name: (4Z,4aR,7R,8aR)-4-亚乙基-3,4,4a,7,8,8a-六氢-8-亚甲基-5-(1-甲基乙基)-3-氧代-1H-2-苯并吡喃-7-基 (2E)-3-甲基-2-戊烯酸酯
Molecular Weight: 344.4 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of (4Z,4aR,7R,8aR)-4-Ethylidene-3,4,4a,7,8,8a-hexahydro-8-methylene-5-(1-methylethyl)-3-oxo-1H-2-benzopyran-7-yl (2E)-3-methyl-2-pentenoate?

The CAS number of (4Z,4aR,7R,8aR)-4-Ethylidene-3,4,4a,7,8,8a-hexahydro-8-methylene-5-(1-methylethyl)-3-oxo-1H-2-benzopyran-7-yl (2E)-3-methyl-2-pentenoate is 189389-03-5.

What are the molecular formula and molecular weight of (4Z,4aR,7R,8aR)-4-Ethylidene-3,4,4a,7,8,8a-hexahydro-8-methylene-5-(1-methylethyl)-3-oxo-1H-2-benzopyran-7-yl (2E)-3-methyl-2-pentenoate?

(4Z,4aR,7R,8aR)-4-Ethylidene-3,4,4a,7,8,8a-hexahydro-8-methylene-5-(1-methylethyl)-3-oxo-1H-2-benzopyran-7-yl (2E)-3-methyl-2-pentenoate has molecular formula C21H28O4 and molecular weight 344.4 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "(4Z,4aR,7R,8aR)-4-Ethylidene-3,4,4a,7,8,8a-hexahydro-8-methylene-5-(1-methylethyl)-3-oxo-1H-2-benzopyran-7-yl (2E)-3-methyl-2-pentenoate (CAS 189389-03-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-565503-4 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.