3,3',4,4'-tetraaminobiphenyl
Also known as: 3,3'-Diaminobenzidine, [1,1'-Biphenyl]-3,3',4,4'-tetramine, Biphenyl-3,3',4,4'-tetramine, 4-(3,4-diaminophenyl)benzene-1,2-diamine, EINECS 202-110-6, MFCD00007725
3,3',4,4'-tetraaminobiphenyl (CAS 91-95-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H14N4 and a molecular weight of 214.266 g/mol. Key properties include a melting point of 175-177 °C(lit.), a boiling point of 481.7±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 282.7±25.6 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H319 — Causes serious eye irritation and H341 — Suspected of causing genetic defects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 91-95-2
- Jingsj CID
- J-27106-6
- Molecular Formula
- C12H14N4
- Molecular Weight
- 214.266 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 175-177 °C(lit.) |
|---|---|
| Boiling Point | 481.7±45.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 282.7±25.6 °C |
| Exact Mass | 214.121841 |
| PSA | 104.08000 |
| LogP | -0.76 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.766 |
| Stability | Stability Moisture and light sensitive. Incompatible with strong oxidizing agents. |
| Additional Property | 0.55 g/L (20 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye irritation
- H341 — Suspected of causing genetic defects
- H350 — May cause cancer
Customs & Trade Information
| HS Code | 2921590090 |
|---|---|
| Summary | 2921590090. other aromatic polyamines and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3,3',4,4'-tetraaminobiphenyl?
The CAS number of 3,3',4,4'-tetraaminobiphenyl is 91-95-2.
What are the molecular formula and molecular weight of 3,3',4,4'-tetraaminobiphenyl?
3,3',4,4'-tetraaminobiphenyl has molecular formula C12H14N4 and molecular weight 214.266 g/mol.
Is 3,3',4,4'-tetraaminobiphenyl hazardous?
3,3',4,4'-tetraaminobiphenyl has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation; H341 — Suspected of causing genetic defects.
What are the upstream and downstream products of 3,3',4,4'-tetraaminobiphenyl?
For 3,3',4,4'-tetraaminobiphenyl, Upstream Products: 3,3'-Dinitrobenzidine, N,N'-Diacetylbenzidine, Acetanilide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,3',4,4'-tetraaminobiphenyl (CAS 91-95-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27106-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.