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6-Chloro-3-pyridinylboronic acid

Also known as: 2-Chloro-5-pyridineboronic acid, 2-Chloro-5-pyridylboronic acid, 2-Chloropyridine-5-boronic acid, (6-Chloropyridin-3-yl)boronic acid, 6-Chloro-3-pyridylboronic acid, 6-Chloropyridin-3-ylboronic acid, Boronic acid, B-(6-chloro-3-pyridinyl)-

6-Chloro-3-pyridinylboronic acid (CAS 444120-91-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5BClNO2 and a molecular weight of 157.36 g/mol. Key properties include a melting point of 165 °C(lit.), a boiling point of 336.9±52.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 157.5±30.7 °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.
444120-91-6
Jingsj CID
J-45229-9
Molecular Formula
C5H5BClNO2
Molecular Weight
157.36 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point165 °C(lit.)
Boiling Point336.9±52.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point157.5±30.7 °C
Exact Mass157.010193
PSA53.35000
LogP0.77
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.559

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 6-Chloro-3-pyridinylboronic acid?

The CAS number of 6-Chloro-3-pyridinylboronic acid is 444120-91-6.

What are the molecular formula and molecular weight of 6-Chloro-3-pyridinylboronic acid?

6-Chloro-3-pyridinylboronic acid has molecular formula C5H5BClNO2 and molecular weight 157.36 g/mol.

Is 6-Chloro-3-pyridinylboronic acid hazardous?

6-Chloro-3-pyridinylboronic 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 6-Chloro-3-pyridinylboronic acid?

For 6-Chloro-3-pyridinylboronic acid, Upstream Products: 5-Bromo-2-chloropyridine, 2-Chloro-5-iodopyridine, 2,5-Dichloropyridine; Downstream Products: 2-Chloro-5-hydroxypyridine, 2-Chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine, 2-Chloro-5-(trifluoromethyl)pyridine.

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

Last updated:

How to cite: Jingsj. "6-Chloro-3-pyridinylboronic acid (CAS 444120-91-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45229-9 (accessed 2026-11-09).

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