3,4-Diaminobenzonitrile
Also known as: 1,2-Diamino-4-cyanobenzene, 2-Amino-4-cyanoaniline, 4-Cyano-1,2-phenylenediamine, 4-Cyano-o-phenylenediamine, 4-Cyanobenzene-1,2-diamine, Benzonitrile, 3,4-diamino-
3,4-Diaminobenzonitrile (CAS 17626-40-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H7N3 and a molecular weight of 133.151 g/mol. Key properties include a melting point of 144-148 °C, a boiling point of 368.7±27.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 176.8±23.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17626-40-3
- Jingsj CID
- J-6932-9
- Molecular Formula
- C7H7N3
- Molecular Weight
- 133.151 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 144-148 °C |
|---|---|
| Boiling Point | 368.7±27.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 176.8±23.7 °C |
| Exact Mass | 133.063995 |
| PSA | 75.83000 |
| LogP | 0.89 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.640 |
| Storage Conditions | Amber Vial, -20?C Freezer |
| Stability | Store in freezer at -20°C |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- 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 3,4-Diaminobenzonitrile?
The CAS number of 3,4-Diaminobenzonitrile is 17626-40-3.
What are the molecular formula and molecular weight of 3,4-Diaminobenzonitrile?
3,4-Diaminobenzonitrile has molecular formula C7H7N3 and molecular weight 133.151 g/mol.
Is 3,4-Diaminobenzonitrile hazardous?
3,4-Diaminobenzonitrile has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 3,4-Diaminobenzonitrile?
For 3,4-Diaminobenzonitrile, Upstream Products: 3-Amino-4-nitrobenzonitrile, 4-Amino-3-nitrobenzonitrile, Water; Downstream Products: 2-Chloro-1H-benzimidazole-5-carbonitrile, 1H-Benzo[d][1,2,3]triazole-5-carbonitrile, 2-(2-Aminoethyl)-1H-benzimidazole-5-carbonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Diaminobenzonitrile (CAS 17626-40-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6932-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.