3-cyanophenylacetic acid
Also known as: 2-(3-Cyanophenyl)acetic acid, 3-Cyanobenzeneacetic acid, Benzeneacetic acid, 3-cyano-, m-Cyanophenylacetic acid, 3-Cyanophenylacetic acid 95%
3-cyanophenylacetic acid (CAS 1878-71-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2 and a molecular weight of 161.15700 g/mol. Key properties include a melting point of 113-117ºC(lit.), a boiling point of 342.1ºC at 760mmHg, a density of 1.26g/cm3 and a flash point of 160.7ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1878-71-3
- Jingsj CID
- J-1493970-9
- Molecular Formula
- C9H7NO2
- Molecular Weight
- 161.15700 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 113-117ºC(lit.) |
|---|---|
| Boiling Point | 342.1ºC at 760mmHg |
| Density | 1.26g/cm3 |
| Flash Point | 160.7ºC |
| Exact Mass | 161.04800 |
| PSA | 61.09000 |
| LogP | 1.18538 |
| Appearance | Powder or Crystalline Powder | White to brown |
| Vapor Pressure | 2.97E-05mmHg at 25°C |
| Refractive Index | 1.576 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H317 — May cause an allergic skin reaction
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 3-cyanophenylacetic acid?
The CAS number of 3-cyanophenylacetic acid is 1878-71-3.
What are the molecular formula and molecular weight of 3-cyanophenylacetic acid?
3-cyanophenylacetic acid has molecular formula C9H7NO2 and molecular weight 161.15700 g/mol.
Is 3-cyanophenylacetic acid hazardous?
3-cyanophenylacetic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of 3-cyanophenylacetic acid?
For 3-cyanophenylacetic acid, Upstream Products: Carbon dioxide, 3-Aminophenylacetic acid; Downstream Products: methyl 2-(3-cyanophenyl)acetate, 3-(2-Hydroxyethyl)benzonitrile, 2-(3-Cyanophenyl)acetophenone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-cyanophenylacetic acid (CAS 1878-71-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1493970-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.