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5-Hydroxypentanal

Also known as: 5-Hydroxyvaleraldehyde, Pentanal, 5-hydroxy-, 5-Hydroxypental, 5-Hydroxy pentanal

5-Hydroxypentanal (CAS 4221-03-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H10O2 and a molecular weight of 102.132 g/mol. Key properties include a boiling point of 187.7±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 72.0±15.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4221-03-8
Jingsj CID
J-1507136-0
Molecular Formula
C5H10O2
Molecular Weight
102.132 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point187.7±23.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point72.0±15.2 °C
Exact Mass102.068077
PSA37.30000
LogP-0.60
Vapor Pressure0.2±0.8 mmHg at 25°C
Refractive Index1.422
Storage Conditions2-8°C

Customs & Trade Information

HS Code2912491000
Summary2912491000. other aldehyde-alcohols. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5-Hydroxypentanal?

The CAS number of 5-Hydroxypentanal is 4221-03-8.

What are the molecular formula and molecular weight of 5-Hydroxypentanal?

5-Hydroxypentanal has molecular formula C5H10O2 and molecular weight 102.132 g/mol.

What are the upstream and downstream products of 5-Hydroxypentanal?

For 5-Hydroxypentanal, Upstream Products: 3,4-Dihydro-2H-pyran, 1,5-Pentanediol, delta-Valerolactone; Downstream Products: 3-Indolepropanol, delta-Valerolactone, Glutaric acid.

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

Last updated:

How to cite: Jingsj. "5-Hydroxypentanal (CAS 4221-03-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1507136-0 (accessed 2026-11-09).

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