4-Chlorophenyl isocyanate
Also known as: 1-Chloro-4-isocyanato-benzene, 1-Chloro-4-isocyanatobenzene, 1-chloro-4-isocyanato-benzen, 4-Chloro-iso-cyanatobenzene, 4-Chlorophenyl Isocyanate, 4-Chlorphenylisocyanate, 4-chloroisocyanatobenzene, Benzene, 1-chloro-4-isocyanato-, EINECS 203-176-9, Isocyanic Acid 4-Chlorophenyl Ester, MFCD00002024, Phenylisocyanate,4-chloro-, benzene,1-chloro-4-isocyanato, p-Chlorophenyl isocyanate, 4-Isocyanato chlorobenzene
4-Chlorophenyl isocyanate (CAS 104-12-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNO and a molecular weight of 153.566 g/mol. Key properties include a melting point of 26-29 °C(lit.), a boiling point of 204.2±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 76.0±9.1 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 104-12-1
- Jingsj CID
- J-14420-7
- Molecular Formula
- C7H4ClNO
- Molecular Weight
- 153.566 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 26-29 °C(lit.) |
|---|---|
| Boiling Point | 204.2±13.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 76.0±9.1 °C |
| Exact Mass | 152.998138 |
| PSA | 29.43000 |
| LogP | 3.42 |
| Vapor Pressure | 0.3±0.4 mmHg at 25°C |
| Refractive Index | 1.551 |
| Additional Property | DECOMPOSES |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H330 — Fatal if inhaled
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2929109000 |
|---|---|
| Summary | 2929109000. other isocyanates. 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 4-Chlorophenyl isocyanate?
The CAS number of 4-Chlorophenyl isocyanate is 104-12-1.
What are the molecular formula and molecular weight of 4-Chlorophenyl isocyanate?
4-Chlorophenyl isocyanate has molecular formula C7H4ClNO and molecular weight 153.566 g/mol.
Is 4-Chlorophenyl isocyanate hazardous?
4-Chlorophenyl isocyanate has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.
What are the upstream and downstream products of 4-Chlorophenyl isocyanate?
For 4-Chlorophenyl isocyanate, Upstream Products: Bis(trichloromethyl) carbonate, 4-Chloroaniline, 2-[(4-Chlorophenyl)amino]-2-oxoacetic acid; Downstream Products: Sulofenur, 4-Chlorophenyl isocyanide, Diflubenzuron.
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-Chlorophenyl isocyanate (CAS 104-12-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14420-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.