(5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one

Also known as: (5aS,7S)-3-methyl-7-prop-1-en-2-yl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one, (5aS,7S)-7-isopropenyl-3-methyl-1H,7H-5a,6,8,9-tetrahydro-1-oxopyrano[4,3-b][1]benzopyran, 1H,7H-Pyrano[4,3-b][1]benzopyran-1-one, 5a,6,8,9-tetrahydro-3-methyl-7-(1-methylethenyl)-, (5aS,7S)-

(5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one (CAS 194937-75-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C16H18O3 and a molecular weight of 258.31200 g/mol. Key properties include a boiling point of 429.2ºC at 760mmHg, a density of 1.16g/cm3 and a flash point of 182.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 194937-75-2
Jingsj CID: J-1313755-8
Molecular Formula: C₁₆H₁₈O₃
Molecular Weight: 258.31200 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	429.2ºC at 760mmHg
Density	1.16g/cm3
Flash Point	182.9ºC
Exact Mass	258.12600
PSA	39.44000
LogP	3.46880
Vapor Pressure	0mmHg at 25°C
Refractive Index	1.564

Frequently Asked Questions

What is the CAS number of (5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one?

The CAS number of (5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one is 194937-75-2.

What are the molecular formula and molecular weight of (5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one?

(5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one has molecular formula C16H18O3 and molecular weight 258.31200 g/mol.

What are the upstream and downstream products of (5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one?

For (5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one, Upstream Products: 4-Hydroxy-6-methyl-2-pyrone, (-)-Perillaldehyde.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(5aS,7S)-7-isopropenyl-3-methyl-6,7,8,9-tetrahydro-5aH-pyrano[4,3-b]chromen-1-one (CAS 194937-75-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1313755-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.