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2-Bromoisonicotinic acid

Also known as: 2-Bromopyridine-4-carboxylic acid, 2-Bromo-4-pyridinecarboxylic acid, 2-Bromo-4-picolinic acid, 4-Pyridinecarboxylic acid, 2-bromo-, 2-Bromoisonicotinic acid

2-Bromoisonicotinic acid (CAS 66572-56-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4BrNO2 and a molecular weight of 202.01 g/mol. Key properties include a melting point of 229-231°C, a boiling point of 447.2±30.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 224.3±24.6 °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.
66572-56-3
Jingsj CID
J-48906-5
Molecular Formula
C6H4BrNO2
Molecular Weight
202.01 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point229-231°C
Boiling Point447.2±30.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point224.3±24.6 °C
Exact Mass200.942535
PSA50.19000
LogP1.39
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.617

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 2-Bromoisonicotinic acid?

The CAS number of 2-Bromoisonicotinic acid is 66572-56-3.

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

2-Bromoisonicotinic acid has molecular formula C6H4BrNO2 and molecular weight 202.01 g/mol.

Is 2-Bromoisonicotinic acid hazardous?

2-Bromoisonicotinic 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-Bromoisonicotinic acid?

For 2-Bromoisonicotinic acid, Upstream Products: 2-Bromo-4-methylpyridine, chromium trioxide, 4-Methylpyridin-2-amine; Downstream Products: 2-bromo-N-methylisonicotinamide, 2-(Piperidin-1-yl)isonicotinic acid, Ethyl 2-bromoisonicotinate.

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-Bromoisonicotinic acid (CAS 66572-56-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48906-5 (accessed 2026-11-09).

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