4-Cyanobenzoic acid
Also known as: 4-Carboxybenzonitrile, 4-Cyanobenzenecarboxylic acid, 4-Cyano-benzoic acid, Benzoic acid,4-cyano, Benzoic acid,p-cyano, NSC 6306, p-CNC6H4CO2H, p-Carboxybenzonitrile, p-cyanobenzoic acid, Terephthalic acid mononitrile
4-Cyanobenzoic acid (CAS 619-65-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5NO2 and a molecular weight of 147.131 g/mol. Key properties include a melting point of 219-221 °C (dec.)(lit.), a boiling point of 341.0±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 160.0±23.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 619-65-8
- Jingsj CID
- J-1990709-6
- Molecular Formula
- C8H5NO2
- Molecular Weight
- 147.131 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 219-221 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 341.0±25.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 160.0±23.2 °C |
| Exact Mass | 147.032028 |
| PSA | 61.09000 |
| LogP | 1.56 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.592 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2926909090 |
|---|---|
| Summary | HS:2926909090 other nitrile-function compounds 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-Cyanobenzoic acid?
The CAS number of 4-Cyanobenzoic acid is 619-65-8.
What are the molecular formula and molecular weight of 4-Cyanobenzoic acid?
4-Cyanobenzoic acid has molecular formula C8H5NO2 and molecular weight 147.131 g/mol.
Is 4-Cyanobenzoic acid hazardous?
4-Cyanobenzoic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of 4-Cyanobenzoic acid?
For 4-Cyanobenzoic acid, Upstream Products: 4-(Hydroxymethyl)benzonitrile, 4-Cyanophenylboronic acid neopentyl glycol ester, Carbon dioxide; Downstream Products: ethyl 3-(4-cyanophenyl)-3-oxopropanoate, 4-Cyanobenzohydrazide, 4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]benzoic acid.
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-Cyanobenzoic acid (CAS 619-65-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990709-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.