5-chloro-2-methoxyphenyl isocyanate
5-氯-2-甲氧基苯基异氰酸酯
Also known as: 4-chloro-2-isocyanato-1-methoxybenzene, Benzene, 4-chloro-2-isocyanato-1-methoxy-, 2-methoxy-5-chlorophenyl isocyanate
5-chloro-2-methoxyphenyl isocyanate (CAS 55440-54-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6ClNO2 and a molecular weight of 183.59200 g/mol. It is also known as 4-chloro-2-isocyanato-1-methoxybenzene, Benzene, 4-chloro-2-isocyanato-1-methoxy- and 2-methoxy-5-chlorophenyl isocyanate. Key properties include a melting point of 58-61 °C(lit.), a boiling point of 271.7ºC at 760 mmHg, a density of 1.22 g/cm3 and a flash point of 118.1ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 55440-54-5
- Jingsj CID
- J-12788-6
- Molecular Formula
- C8H6ClNO2
- Chinese Name
- 5-氯-2-甲氧基苯基异氰酸酯
- Molecular Weight
- 183.59200 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 58-61 °C(lit.) |
|---|---|
| Boiling Point | 271.7ºC at 760 mmHg |
| Density | 1.22 g/cm3 |
| Flash Point | 118.1ºC |
| Exact Mass | 183.00900 |
| PSA | 38.66000 |
| LogP | 2.31590 |
| Refractive Index | 1.534 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H332 — Harmful 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 5-chloro-2-methoxyphenyl isocyanate?
The CAS number of 5-chloro-2-methoxyphenyl isocyanate is 55440-54-5.
What are the molecular formula and molecular weight of 5-chloro-2-methoxyphenyl isocyanate?
5-chloro-2-methoxyphenyl isocyanate has molecular formula C8H6ClNO2 and molecular weight 183.59200 g/mol.
Is 5-chloro-2-methoxyphenyl isocyanate hazardous?
5-chloro-2-methoxyphenyl isocyanate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-chloro-2-methoxyphenyl isocyanate (CAS 55440-54-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12788-6 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.