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3,4-dichlorobenzyl isocyanate

Also known as: 1,2-dichloro-4-(isocyanatomethyl)benzene, 1,2-dichloro-4-isocyanatomethyl-benzene, 3,4-DICHLOROBENZYL ISOCYANATE, 3,4-Dichlorobenzyl isocyanate, Benzene, 1,2-dichloro-4-(isocyanatomethyl)-, MFCD00673063, TIMTEC-BB SBB006646

3,4-dichlorobenzyl isocyanate (CAS 19752-09-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5Cl2NO and a molecular weight of 202.03700 g/mol. Key properties include a boiling point of 282 °C(lit.), a density of 1.375 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. 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 Nov 3, 2026.

CAS No.
19752-09-1
Jingsj CID
J-33973-1
Molecular Formula
C8H5Cl2NO
Molecular Weight
202.03700 g/mol
Category
Organic Acids
Last updated
11/3/2026
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Physicochemical Properties

Boiling Point282 °C(lit.)
Density1.375 g/mL at 25 °C(lit.)
Flash Point>110.0 °C
Exact Mass200.97500
PSA29.43000
LogP2.82920
Vapor Pressure0.0065mmHg at 25°C
Refractive Indexn20/D 1.568(lit.)

GHS Safety & Compliance

IrritantSignal word: Warning
  • 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 Code2929109000
Summary2929109000. 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-dichlorobenzyl isocyanate?

The CAS number of 3,4-dichlorobenzyl isocyanate is 19752-09-1.

What are the molecular formula and molecular weight of 3,4-dichlorobenzyl isocyanate?

3,4-dichlorobenzyl isocyanate has molecular formula C8H5Cl2NO and molecular weight 202.03700 g/mol.

Is 3,4-dichlorobenzyl isocyanate hazardous?

3,4-dichlorobenzyl isocyanate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 3,4-dichlorobenzyl isocyanate?

For 3,4-dichlorobenzyl isocyanate, Upstream Products: 3,4-Dichlorobenzylamine, 3,4-Dichlorophenylacetic acid, 3,4-Dichlorobenzyl alcohol.

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-dichlorobenzyl isocyanate (CAS 19752-09-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33973-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.