p-Phenylenediamine
Also known as: 1,4-Benzenediamine, 1,4-Diaminobenzene, para-Phenylenediamine, 4-Aminoaniline, Benzene-1,4-diamine, C.I. 76060, p-Benzenediamine, p-diaminobenzene, Paraphenylenediamine
p-Phenylenediamine (CAS 106-50-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C6H8N2 and a molecular weight of 108.141 g/mol. Key properties include a melting point of 139 °C, a boiling point of 267.4±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 135.9±19.3 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 106-50-3
- Jingsj CID
- J-36080-7
- Molecular Formula
- C6H8N2
- Molecular Weight
- 108.141 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 139 °C |
|---|---|
| Boiling Point | 267.4±13.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 135.9±19.3 °C |
| Exact Mass | 108.068748 |
| PSA | 52.04000 |
| LogP | -0.68 |
| Additional Property | 3.7 (vs air) |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.661 |
| Additional Property | 47 g/L (25 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H370 — Causes damage to organs
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2921519090 |
|---|---|
| Summary | 2921519090. o-, m-, p-phenylenediamine, diaminotoluenes, and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:17.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of p-Phenylenediamine?
The CAS number of p-Phenylenediamine is 106-50-3.
What are the molecular formula and molecular weight of p-Phenylenediamine?
p-Phenylenediamine has molecular formula C6H8N2 and molecular weight 108.141 g/mol.
Is p-Phenylenediamine hazardous?
p-Phenylenediamine has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.
What are the upstream and downstream products of p-Phenylenediamine?
For p-Phenylenediamine, Upstream Products: 1,4-Dinitrobenzene, 4-Iodoaniline, 1-Bromo-4-iodobenzene; Downstream Products: 1,4-Dinitrosobenzene, 4-(1H-Pyrrol-1-yl)aniline, 1,1'-(1,4-Phenylene)bis(1H-pyrrole-2,5-dione).
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "p-Phenylenediamine (CAS 106-50-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36080-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.