4-Vinylaniline
Also known as: 4-Aminostyrene, p-Aminostyrene, 4-Ethenylaniline, 4-Vinylbenzenamine, p-Vinylaniline, Benzenamine, 4-ethenyl-
4-Vinylaniline (CAS 1520-21-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H9N and a molecular weight of 119.164 g/mol. Key properties include a melting point of 23 °C, a boiling point of 238.8±19.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 108.6±16.8 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1520-21-4
- Jingsj CID
- J-1377204-8
- Molecular Formula
- C8H9N
- Molecular Weight
- 119.164 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 23 °C |
|---|---|
| Boiling Point | 238.8±19.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 108.6±16.8 °C |
| Exact Mass | 119.073502 |
| PSA | 26.02000 |
| LogP | 1.42 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.622 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
- H351 — Suspected of causing cancer
- H373 — May cause damage to organs through prolonged exposure
Customs & Trade Information
| HS Code | 2921420090 |
|---|---|
| Summary | HS:2921420090 aniline derivatives and their salts 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-Vinylaniline?
The CAS number of 4-Vinylaniline is 1520-21-4.
What are the molecular formula and molecular weight of 4-Vinylaniline?
4-Vinylaniline has molecular formula C8H9N and molecular weight 119.164 g/mol.
Is 4-Vinylaniline hazardous?
4-Vinylaniline has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
What are the upstream and downstream products of 4-Vinylaniline?
For 4-Vinylaniline, Upstream Products: 4-Iodoaniline, Vinyltrimethylsilane, Tetravinylsilane; Downstream Products: 4-Aminobenzamide, 4-Aminobenzaldehyde, 4-Ethylaniline.
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-Vinylaniline (CAS 1520-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1377204-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.