(3R,4S)-4,5-isopropylidene-pent-2-yn-3-ol

(3R,4S)-4,5-异亚丙基-2-戊炔-3-醇

Also known as: (3R,4S)-4,5-ISOPROPYLIDENE-PENT-2-YN-3-OL, D-erythro-Pent-1-ynitol, 1,2-dideoxy-4,5-O-(1-methylethylidene)-, (3r,4s)-4,5-isopropylidene-pent-2-yn-3-ol

(3R,4S)-4,5-isopropylidene-pent-2-yn-3-ol (CAS 4688-38-4) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H12O3 and a molecular weight of 156.17900 g/mol. It is also known as (3R,4S)-4,5-ISOPROPYLIDENE-PENT-2-YN-3-OL, D-erythro-Pent-1-ynitol, 1,2-dideoxy-4,5-O-(1-methylethylidene)- and (3r,4s)-4,5-isopropylidene-pent-2-yn-3-ol. Key properties include a boiling point of 218.181ºC at 760 mmHg, a density of 1.095g/cm3 and a flash point of 85.753ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4688-38-4
Jingsj CID
J-1338652-8
Molecular Formula
C8H12O3
Chinese Name
(3R,4S)-4,5-异亚丙基-2-戊炔-3-醇
Molecular Weight
156.17900 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point218.181ºC at 760 mmHg
Density1.095g/cm3
Flash Point85.753ºC

Frequently Asked Questions

What is the CAS number of (3R,4S)-4,5-isopropylidene-pent-2-yn-3-ol?

The CAS number of (3R,4S)-4,5-isopropylidene-pent-2-yn-3-ol is 4688-38-4.

What are the molecular formula and molecular weight of (3R,4S)-4,5-isopropylidene-pent-2-yn-3-ol?

(3R,4S)-4,5-isopropylidene-pent-2-yn-3-ol has molecular formula C8H12O3 and molecular weight 156.17900 g/mol.

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

Last updated:

How to cite: Jingsj. "(3R,4S)-4,5-isopropylidene-pent-2-yn-3-ol (CAS 4688-38-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1338652-8 (accessed 2026-10-24).

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