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Propylboronic acid

Also known as: 1-PROPYLBORONIC ACID, 1-Propaneboronic acid, n-Propylboronic acid, Propylboronic Acid (contains varying amounts of Anhydride), BUB, Boronic acid, B-propyl-, MFCD01074564, N-PBA, N-PROPYLBORONIC ACID, Propaneboronic acid, Propylboronic, dihydroxy-propyl-borane

Propylboronic acid (CAS 17745-45-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H9BO2 and a molecular weight of 87.91 g/mol. Key properties include a melting point of 105-108°C, a boiling point of 170.8±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 57.1±22.6 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17745-45-8
Jingsj CID
J-24772-3
Molecular Formula
C3H9BO2
Molecular Weight
87.91 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point105-108°C
Boiling Point170.8±23.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point57.1±22.6 °C
Exact Mass88.069557
PSA40.46000
LogP0.90
Vapor Pressure0.5±0.7 mmHg at 25°C
Refractive Index1.388

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Customs & Trade Information

HS Code2931900090
Summary2931900090. 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 Propylboronic acid?

The CAS number of Propylboronic acid is 17745-45-8.

What are the molecular formula and molecular weight of Propylboronic acid?

Propylboronic acid has molecular formula C3H9BO2 and molecular weight 87.91 g/mol.

Is Propylboronic acid hazardous?

Propylboronic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of Propylboronic acid?

For Propylboronic acid, Upstream Products: Trimethyl borate, Propylmagnesium bromide, Diisopropyl ether; Downstream Products: 5-Methyl-2-propylpyridine, Trimethyl borate, 1-Chloropropane.

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

Last updated:

How to cite: Jingsj. "Propylboronic acid (CAS 17745-45-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24772-3 (accessed 2026-11-09).

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