4-Azidobenzoic acid
Also known as: p-Azidobenzoic acid, Benzoic acid, 4-azido-, 4-Carboxyphenyl azide, MFCD00013987, EINECS 229-198-9
4-Azidobenzoic acid (CAS 6427-66-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5N3O2 and a molecular weight of 163.133 g/mol. Key properties include a boiling point of 73-75 °C0.35 mm Hg(lit.), a density of 1.352 g/mL at 25 °C(lit.) and a flash point of 90.6 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H315 — Causes skin irritation and H373 — May cause damage to organs through prolonged exposure. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 6427-66-3
- Jingsj CID
- J-1367794-6
- Molecular Formula
- C7H5N3O2
- Molecular Weight
- 163.133 g/mol
- Category
- Organic Acids
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 73-75 °C0.35 mm Hg(lit.) |
|---|---|
| Density | 1.352 g/mL at 25 °C(lit.) |
| Flash Point | 90.6 °C |
| Exact Mass | 163.038177 |
| PSA | 87.05000 |
| LogP | 2.54 |
| Refractive Index | n20/D 1.398(lit.) |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H315 — Causes skin irritation
- H373 — May cause damage to organs through prolonged exposure
Customs & Trade Information
| HS Code | 2929909090 |
|---|---|
| Summary | 2929909090 other compounds with other nitrogen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Azidobenzoic acid?
The CAS number of 4-Azidobenzoic acid is 6427-66-3.
What are the molecular formula and molecular weight of 4-Azidobenzoic acid?
4-Azidobenzoic acid has molecular formula C7H5N3O2 and molecular weight 163.133 g/mol.
Is 4-Azidobenzoic acid hazardous?
4-Azidobenzoic acid has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H315 — Causes skin irritation; H373 — May cause damage to organs through prolonged exposure.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Azidobenzoic acid (CAS 6427-66-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1367794-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.