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N-Chlorophthalimide

CAS No.
3481-09-2
Chemical Name:
N-Chlorophthalimide
Synonyms
ncp;2-Chloroisoindoline-1,3-dione;Chlorophtalimide;N-Chlorphthalimid;N-CHLOROPHTHALIMIDE;phthalimide chloride;Phthalimidoyl chloride;N-Chlorophthalimide,95%;N-Chlorophthalimide 96%;N-Chlorophthalimide
CBNumber:
CB6265755
Molecular Formula:
C8H4ClNO2
Molecular Weight:
181.58
MDL Number:
MFCD00023027
MOL File:
3481-09-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-24 14:58:18
Product description Number Pack Size Price
N-Chlorophthalimide 96% 528218 25g $113
N-Chlorophthalimide >95.0%(T) C0802 25g $48
N-Chlorophthalimide >95.0%(T) C0802 500g $285
N-Chlorophthalimide ≥95%(HPLC) 37232 25G $36.65
N-Chlorophthalimide ≥95%(HPLC) 37232 100G $105.36

N-Chlorophthalimide Properties

Melting point 188-198 °C (lit.)
Boiling point 315.1±25.0 °C(Predicted)
Density 1.56±0.1 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
pka -3.53±0.20(Predicted)
form powder to crystal
color White to Almost white
InChI InChI=1S/C8H4ClNO2/c9-10-7(11)5-3-1-2-4-6(5)8(10)12/h1-4H
InChIKey WDRFYIPWHMGQPN-UHFFFAOYSA-N
SMILES C1(=O)C2=C(C=CC=C2)C(=O)N1Cl
CAS DataBase Reference 3481-09-2(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
RIDADR  1759
WGK Germany  1
HazardClass  8
PackingGroup  II
HS Code  29349990
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
0
3 1

N-Chlorophthalimide price More Price(31)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 528218 N-Chlorophthalimide 96% 3481-09-2 25g $113 2026-04-30 Buy
TCI Chemical C0802 N-Chlorophthalimide >95.0%(T) 3481-09-2 25g $48 2026-04-30 Buy
TCI Chemical C0802 N-Chlorophthalimide >95.0%(T) 3481-09-2 500g $285 2026-04-30 Buy
Chem-Impex 37232 N-Chlorophthalimide ≥95%(HPLC) 3481-09-2 25G $36.65 2026-05-19 Buy
Chem-Impex 37232 N-Chlorophthalimide ≥95%(HPLC) 3481-09-2 100G $105.36 2026-05-19 Buy
Product number Packaging Price Buy
528218 25g $113 Buy
C0802 25g $48 Buy
C0802 500g $285 Buy
37232 25G $36.65 Buy
37232 100G $105.36 Buy

N-Chlorophthalimide Chemical Properties,Uses,Production

Chemical Properties

White to pale yellow powder

Uses

N-Chlorophthalimide may be employed in the synthesis of:

  • α-amino acetal
  • α-amino nitro compounds
  • vicinal diamine
  • α,β-unsaturated vicinal haloamino nitro compound
It may also be used as a chlorination reagent for the synthesis of 3-(methylthio)oxindoles.

General Description

N-Chlorophthalimide in anhydrous acetic acid serves as a useful oxidizing reagent for use in various direct titrimetric analyses. N-Chlorophthalimide can be synthesized by reacting phthalimide, t-butyl hypochlorite, water and t-butyl alcohol. It participates in the synthesis of 2-amino-3-benzoyl-α-(methylthio)phenylacetamide.

Synthesis

1H-Isoindol-1-one, 3-hydroxy-

136918-14-4

N-Chlorophthalimide

3481-09-2

General procedure for the synthesis of N-chlorophthalimide from 3-hydroxy-1H-isoindol-1-one: Anhydrous aluminum trichloride (AlCl3, 1 eq., 10 mmol, 1.36 g) was added to an anhydrous acetonitrile (CH3CN, 100 mL) solution of lead tetraacetate (Pb(OAc)4, 1 eq., 10 mmol, 4.52 g). The mixture was stirred at room temperature for 5 minutes before phthalimide (1 eq., 10 mmol, 1.5 g) was added. The resulting mixture was gently refluxed under nitrogen protection for 20 h and subsequently cooled to room temperature. The solvent was removed by rotary evaporation and the crude product was purified by column chromatography using pure dichloromethane (DCM) as eluent. Yield: 1.32 g, 71% yield.1H NMR (300 MHz, CDCl3): δ 7.94-7.91 (m, 2H), 7.82-7.79 (m, 2H) ppm.

References

[1] Synthesis, 2009, # 16, p. 2797 - 2801
[2] Synlett, 2006, # 2, p. 194 - 200
[3] Catalysis Today, 2018, vol. 308, p. 94 - 101
[4] Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 6, p. 1302
[5] Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 8, p. 163

1074-82-4
3481-09-2
Synthesis of N-Chlorophthalimide from Potassium phthalimide

N-Chlorophthalimide Preparation Products And Raw materials

N-Chlorophthalimide Suppliers

Global( 220)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Dideu Medichem Co. Ltd
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View Lastest Price from N-Chlorophthalimide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
N-Chlorophthalimide pictures 2025-05-26 N-Chlorophthalimide
3481-09-2
US $30.00-10.00 / kg 10kg 99% 100000kg Hebei Chuanghai Biotechnology Co,.LTD
N-Chlorophthalimide pictures 2024-07-11 N-Chlorophthalimide
3481-09-2
US $1.00 / KG 1KG 98% 20T Shaanxi Dideu Medichem Co. Ltd
N-CHLOROPHTHALIMIDE ncp Phthalimidoyl chloride phthalimide chloride 2-chloro-1h-isoindole-1,3(2h)-dione Chlorophtalimide N-Chlorphthalimid 2-Chloro-2H-isoindole-1,3-dione N-Chlorophthalimide,95% N-Chlorophthalimide 2-Chloroisoindoline-1,3-dione 1H-Isoindole-1,3(2H)-dione,2-chloro- N - chlorinated phthalates forMyl iMine N-Chlorophthalimide 96% 3481-09-2 3481-09-02 3481-9-2 3841-09-2 Cyclic Imides Organic Building Blocks N-Substituted Maleimides, Succinimides & Phthalimides Chlorination N-Substituted Phthalimides Halogenation Building Blocks Carbonyl Compounds Chlorination Halogenation N-Substituted Maleimides, Succinimides & Phthalimides N-Substituted Phthalimides Synthetic Organic Chemistry Carbonyl Compounds Cyclic Imides Organic Building Blocks Heterocycles 3481-09-2