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trans-1,2-Cyclopentanediol

Also known as: (1R,2R)-rel-trans-1,2-Cyclopentanediol, rac-trans-1,2-cyclopentanediol, rac-trans-cyclopentane-1,2-diol, trans-1,2-Dihydroxycyclopentane, trans-Cyclopentanediol-1,2, 1,2-trans-cyclopentanediol, 1,2-Cyclopentanediol, EINECS 225-757-6, MFCD00082582

trans-1,2-Cyclopentanediol (CAS 5057-99-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C5H10O2 and a molecular weight of 102.13200 g/mol. Key properties include a melting point of 54-56ºC(lit.), a boiling point of 136ºC21.5 mm Hg(lit.), a density of 1.235 g/cm3 and a flash point of >110.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
5057-99-8
Jingsj CID
J-22781-6
Molecular Formula
C5H10O2
Molecular Weight
102.13200 g/mol
Category
Alcohols
Last updated
11/3/2026
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Physicochemical Properties

Melting Point54-56ºC(lit.)
Boiling Point136ºC21.5 mm Hg(lit.)
Density1.235 g/cm3
Flash Point>110.0 °C
Exact Mass102.06800
PSA40.46000
Refractive Index1.547

Frequently Asked Questions

What is the CAS number of trans-1,2-Cyclopentanediol?

The CAS number of trans-1,2-Cyclopentanediol is 5057-99-8.

What are the molecular formula and molecular weight of trans-1,2-Cyclopentanediol?

trans-1,2-Cyclopentanediol has molecular formula C5H10O2 and molecular weight 102.13200 g/mol.

What are the upstream and downstream products of trans-1,2-Cyclopentanediol?

For trans-1,2-Cyclopentanediol, Upstream Products: Cyclopentene, Cyclopentene oxide, glutaraldehyde; Downstream Products: Glutaric acid, (1R,2R)-(-)-trans-1,2-Cyclopentanediol, (1S,2S)-cyclopentane-1,2-diol.

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

Last updated:

How to cite: Jingsj. "trans-1,2-Cyclopentanediol (CAS 5057-99-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22781-6 (accessed 2026-11-09).

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