3,4-Dichlorophenyl isocyanate
Also known as: Isocyanic acid 3,4-dichlorophenyl ester, 1,2-Dichloro-4-isocyanatobenzene, Benzene, 1,2-dichloro-4-isocyanato-, 3,4-DCPI, Dichloroisocyanatobenzene, Isocyanic Acid 3,4-Dichlorophenyl Ester, 3,4-Dichlorophenylcarbimide, 3,4-DichloroPhenylIsocyanate, 3,4-Dichlorfenylisokyanat, 3,4-Dichlorphenylisocyanat
3,4-Dichlorophenyl isocyanate (CAS 102-36-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H3Cl2NO and a molecular weight of 188.011 g/mol. Key properties include a melting point of 41-43 °C(lit.), a boiling point of 233.6±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 106.1±12.4 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 102-36-3
- Jingsj CID
- J-14425-2
- Molecular Formula
- C7H3Cl2NO
- Molecular Weight
- 188.011 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 41-43 °C(lit.) |
|---|---|
| Boiling Point | 233.6±0.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 106.1±12.4 °C |
| Exact Mass | 186.959167 |
| PSA | 29.43000 |
| LogP | 4.01 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.575 |
| Additional Property | decomposes |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
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 3,4-Dichlorophenyl isocyanate?
The CAS number of 3,4-Dichlorophenyl isocyanate is 102-36-3.
What are the molecular formula and molecular weight of 3,4-Dichlorophenyl isocyanate?
3,4-Dichlorophenyl isocyanate has molecular formula C7H3Cl2NO and molecular weight 188.011 g/mol.
Is 3,4-Dichlorophenyl isocyanate hazardous?
3,4-Dichlorophenyl isocyanate has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of 3,4-Dichlorophenyl isocyanate?
For 3,4-Dichlorophenyl isocyanate, Upstream Products: Bis(trichloromethyl) carbonate, 3,4-Dichloroaniline, Ethyl (3,4-dichlorophenyl)carbamate; Downstream Products: 1-(3,4-Dichlorophenyl)-3-methylurea, Diuron, Linuron.
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-Dichlorophenyl isocyanate (CAS 102-36-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14425-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.