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N-Chlorophthalimide

Also known as: 2-Chloroisoindoline-1,3-dione, 2-Chloro-1H-isoindole-1,3(2H)-dione, 2-Chloro-2H-isoindole-1,3-dione, Chlorophtalimide, N-Chlorphthalimid, N-chloroisoindole-1,3-dione, Phthalimidoyl chloride, phthalimide chloride, phthalimide cloride, ncp, N-chloro phthalimide, chloro phthalimide, 1H-Isoindole-1,3(2H)-dione, 2-chloro-, EINECS 222-459-8, MFCD00023027

N-Chlorophthalimide (CAS 3481-09-2) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H4ClNO2 and a molecular weight of 181.576 g/mol. Key properties include a melting point of 188-198 °C(lit.), a boiling point of 315.1±25.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 144.4±23.2 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3481-09-2
Jingsj CID
J-1135775-9
Molecular Formula
C8H4ClNO2
Molecular Weight
181.576 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point188-198 °C(lit.)
Boiling Point315.1±25.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point144.4±23.2 °C
Exact Mass180.993057
PSA37.38000
LogP1.56
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.661

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2925190090
Summary2925190090 other imides and their derivatives; salts thereof 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 N-Chlorophthalimide?

The CAS number of N-Chlorophthalimide is 3481-09-2.

What are the molecular formula and molecular weight of N-Chlorophthalimide?

N-Chlorophthalimide has molecular formula C8H4ClNO2 and molecular weight 181.576 g/mol.

Is N-Chlorophthalimide hazardous?

N-Chlorophthalimide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of N-Chlorophthalimide?

For N-Chlorophthalimide, Upstream Products: Potassium phthalimide, Sodium phthalimide, tert-Butyl hypochlorite; Downstream Products: 3-Chloro-6-nitro-1H-indazole, Phthalide, 2,3,5-Triphenyltetrazolium chloride.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N-Chlorophthalimide (CAS 3481-09-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1135775-9 (accessed 2026-11-06).

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