(E)-(5-Chloropent-1-en-1-yl)boronic acid

Also known as: (E)-5-Chloro-1-penteneboronic acid, [(1E)-5-chloropent-1-en-1-yl]boronic acid, Boronic acid, B-[(1E)-5-chloro-1-penten-1-yl]-, RARECHEM AH PB 0203

(E)-(5-Chloropent-1-en-1-yl)boronic acid (CAS 37490-32-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10BClO2 and a molecular weight of 148.39600 g/mol. Key properties include a boiling point of 279.1ºC at 760 mmHg, a density of 1.115g/cm3 and a flash point of 122.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 37490-32-7
Jingsj CID: J-1607381-7
Molecular Formula: C₅H₁₀BClO₂
Molecular Weight: 148.39600 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	279.1ºC at 760 mmHg
Density	1.115g/cm3
Flash Point	122.6ºC
Exact Mass	148.04600
PSA	40.46000
LogP	0.57360
Refractive Index	1.462

Customs & Trade Information

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (E)-(5-Chloropent-1-en-1-yl)boronic acid?

The CAS number of (E)-(5-Chloropent-1-en-1-yl)boronic acid is 37490-32-7.

What are the molecular formula and molecular weight of (E)-(5-Chloropent-1-en-1-yl)boronic acid?

(E)-(5-Chloropent-1-en-1-yl)boronic acid has molecular formula C5H10BClO2 and molecular weight 148.39600 g/mol.

What are the upstream and downstream products of (E)-(5-Chloropent-1-en-1-yl)boronic acid?

For (E)-(5-Chloropent-1-en-1-yl)boronic acid, Upstream Products: 5-Chloro-1-pentyne.

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. "(E)-(5-Chloropent-1-en-1-yl)boronic acid (CAS 37490-32-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1607381-7 (accessed 2026-11-09).

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