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2-Cyanophenylboronic acid

Also known as: 2-Cyanobenzeneboronic acid, o-Cyanophenylboronic acid, (2-Cyanophenyl)boronic acid, ortho-cyanophenylboronic acid, Boronic acid, B-(2-cyanophenyl)-

2-Cyanophenylboronic acid (CAS 138642-62-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6BNO2 and a molecular weight of 146.94 g/mol. Key properties include a melting point of 240 °C (dec.)(lit.), a boiling point of 376.4±44.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 181.4±28.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
138642-62-3
Jingsj CID
J-27703-2
Molecular Formula
C7H6BNO2
Molecular Weight
146.94 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point240 °C (dec.)(lit.)
Boiling Point376.4±44.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point181.4±28.4 °C
Exact Mass147.049164
PSA64.25000
LogP1.03
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.560

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 2-Cyanophenylboronic acid?

The CAS number of 2-Cyanophenylboronic acid is 138642-62-3.

What are the molecular formula and molecular weight of 2-Cyanophenylboronic acid?

2-Cyanophenylboronic acid has molecular formula C7H6BNO2 and molecular weight 146.94 g/mol.

Is 2-Cyanophenylboronic acid hazardous?

2-Cyanophenylboronic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2-Cyanophenylboronic acid?

For 2-Cyanophenylboronic acid, Upstream Products: Tripropyl borate, 2-Bromobenzonitrile, 2,2,6,6-Tetramethylpiperidine; Downstream Products: 2-fluoro-9H-fluoren-9-one, 2,3-Diphenyl-1-indenone, 2-Cyanophenol.

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

Last updated:

How to cite: Jingsj. "2-Cyanophenylboronic acid (CAS 138642-62-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27703-2 (accessed 2026-11-09).

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