2-Fluoroisonicotinic acid
Also known as: 2-Fluoropyridine-4-carboxylic acid, 2-Fluoro-4-pyridinecarboxylic acid, 2-Fluoro-4-pyridinecarboxlic acid, 2-Fluoro-4-carboxypyridine, 4-Carboxy-2-fluoropyridine, 4-Pyridinecarboxylic acid, 2-fluoro-, MFCD02181194
2-Fluoroisonicotinic acid (CAS 402-65-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4FNO2 and a molecular weight of 141.100 g/mol. Key properties include a melting point of 200 °C (dec.)(lit.), a boiling point of 396.6±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 193.6±22.3 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 402-65-3
- Jingsj CID
- J-16501-5
- Molecular Formula
- C6H4FNO2
- Molecular Weight
- 141.100 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 200 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 396.6±22.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 193.6±22.3 °C |
| Exact Mass | 141.022614 |
| PSA | 50.19000 |
| LogP | 0.87 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.542 |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. 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-Fluoroisonicotinic acid?
The CAS number of 2-Fluoroisonicotinic acid is 402-65-3.
What are the molecular formula and molecular weight of 2-Fluoroisonicotinic acid?
2-Fluoroisonicotinic acid has molecular formula C6H4FNO2 and molecular weight 141.100 g/mol.
Is 2-Fluoroisonicotinic acid hazardous?
2-Fluoroisonicotinic acid has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2-Fluoroisonicotinic acid?
For 2-Fluoroisonicotinic acid, Upstream Products: 2-Fluoro-4-methylpyridine, 4-Methylpyridin-2-amine; Downstream Products: Methyl 2-fluoroisonicotinate, 2-Fluoroisoniazide, 2-Fluoropyridine-4-carboxaldehyde.
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-Fluoroisonicotinic acid (CAS 402-65-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16501-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.