ChemicalBook > CAS DataBase List > (Chloromethylene)dimethyliminium chloride

(Chloromethylene)dimethyliminium chloride

Product Name
(Chloromethylene)dimethyliminium chloride
CAS No.
3724-43-4
Chemical Name
(Chloromethylene)dimethyliminium chloride
Synonyms
Vilsmeier;VILSMEIER REAGENT;N-(chloroMethylene)-N-MethylMethanaMiniuM chloride;VILSMEIER SALT;(CHLOROMETHYLENE)DIMETHYLAMMONIUM CHLORIDE;Arnold's;arnold's reagent;Reagents, Arnold's;Chlorodimethylformiminium chloride;Dimethylchloroformiminium chloride
CBNumber
CB1446799
Molecular Formula
C3H7ClN.Cl
Formula Weight
128
MOL File
3724-43-4.mol
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(Chloromethylene)dimethyliminium chloride Property

Melting point:
132 °C (dec.) (lit.)
Boiling point:
204.27°C (rough estimate)
Density 
1.3578 (rough estimate)
refractive index 
1.4525 (estimate)
storage temp. 
2-8°C
form 
Crystalline Powder
color 
Pale brown to yellow-brown
Water Solubility 
reacts
Sensitive 
Moisture Sensitive
BRN 
3566322
InChI
InChI=1S/C3H7ClN.ClH/c1-5(2)3-4;/h3H,1-2H3;1H/q+1;/p-1
InChIKey
QQVDYSUDFZZPSU-UHFFFAOYSA-M
SMILES
[N+](/C)(\C)=C\Cl.[Cl-]
CAS DataBase Reference
3724-43-4(CAS DataBase Reference)
EPA Substance Registry System
Methanaminium, N-(chloromethylene)-N-methyl-, chloride (3724-43-4)
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Safety

Hazard Codes 
T
Risk Statements 
61-20/21/22-34-22-14-35
Safety Statements 
53-26-36/37/39-45
RIDADR 
UN 3261
WGK Germany 
1
F 
8-10
TSCA 
Yes
HazardClass 
8
PackingGroup 
II
HS Code 
29252000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
280909
Product name
(Chloromethylene)dimethyliminium chloride
Purity
95%
Packaging
5g
Price
$59.6
Updated
2025/07/31
Sigma-Aldrich
Product number
280909
Product name
(Chloromethylene)dimethyliminium chloride
Purity
95%
Packaging
25g
Price
$158
Updated
2025/07/31
TCI Chemical
Product number
C1545
Product name
(Chloromethylene)dimethyliminium Chloride
Purity
>95.0%(T)
Packaging
25g
Price
$136
Updated
2025/07/31
TCI Chemical
Product number
C1545
Product name
(Chloromethylene)dimethyliminium Chloride
Purity
>95.0%(T)
Packaging
250g
Price
$792
Updated
2025/07/31
TRC
Product number
C369035
Product name
(Chloromethylene)dimethylammoniumChloride
Packaging
50g
Price
$690
Updated
2021/12/16
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(Chloromethylene)dimethyliminium chloride Chemical Properties,Usage,Production

Chemical Properties

Pale brown to yellowish-brown crystalline powder

Uses

(Chloromethylene)dimethylammonium chloride is used in the synthesis of beta-lactams, n-vinyl substituted indoles and fused 2-pyridone rings and 2-azetidinones. It is used as a formylating agent and used in the preparation of anti-poxvirus agents. It is used in Staudinger reaction and Hundsdiecker-barton iododecarboxylation reaction. It is widely used for studying organic photosensitizers, which finds application in dye-sensitized solar cells.

Uses

Reagent or Reactant for the synthesis of:

  • β-Lactams vis the Staudinger reaction
  • N-vinyl substituted indoles via cross coupling of NH-indoles with vinyl bromides
  • Multi ring-fused 2-pyridone-based fluorescent scaffold
  • ester prodrugs as anti-poxvirus agents
  • Trimethine cyanine dyes for sensing G-quadruplex formation
  • Phospha-isosteres via Hundsdiecker-Barton iododecacarboxylation
  • 2-Azetidinones via [2+2]-cycloaddition

Used for studying organic photosensitizers for application in dye-sensitized solar cells

reaction suitability

reaction type: C-C Bond Formation

(Chloromethylene)dimethyliminium chloride Preparation Products And Raw materials

Raw materials

Thionyl chloride

Preparation Products

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View Lastest Price from (Chloromethylene)dimethyliminium chloride manufacturers

Shaanxi Dideu New Materials Co. Ltd
Product
(Chloromethylene)dimethyliminium chloride 3724-43-4
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10000KGS
Release date
2025-02-22
Shaanxi Dideu Medichem Co. Ltd
Product
(Chloromethylene)dimethyliminium chloride 3724-43-4
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20T
Release date
2024-07-12
Zhuozhou Wenxi import and Export Co., Ltd
Product
(Chloromethylene)dimethyliminium chloride 95% 3724-43-4
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-06-27

3724-43-4, (Chloromethylene)dimethyliminium chlorideRelated Search:

tert-Butyldimethylsilyl chloride Didecyl dimethyl ammonium chloride LITHIUM PERIODATE Calcium chloride Ammonium chloride Mepiquat chloride Dimethyl sulfoxide Chlorodimethylphenylsilane Polyvinyl chloride Benzyl chloride DIMETHYLTHEXYLSILYL CHLORIDE Sodium chloride Choline chloride Methylene Chloride 2-Chloro-1,3-dimethylimidazolidinium chloride (Dichloromethylene)dimethylammonium chloride (4S,5S)-2-CHLORO-1,3-DIMETHYL-4,5-DIPHENYL-1-IMIDAZOLINIUM CHLORIDE Chloromethane

  • N-CHLOROMETHYLEN-N,N-DIMETHYLAMMONIUM CHLORIDE
  • VILSMEIER REAGENT
  • (CHLOROMETHYLENE)DIMETHYLAMMONIUM CHLORIDE
  • CHLOROMETHYLENEDIMETHYLIMINIUM CHLORIDE
  • n-(chloromethylene)-n-methyl-methanaminiuchloride
  • Vilsmeier
  • N-Chloromethylene-N,N-Dimethyl Ammonium Chloride
  • (Chloromethylene)dimethylammoniumchlorlde
  • Methanaminium, N-(chloromethylene)-N-methyl-, chloride
  • (chlormethylene)dimethylammonium chloride
  • Methanaminium, N-(chloromethylene)-N-methyl-, chloride (1:1)
  • arnold's reagent
  • n,n-dimethylchloroformimidinium chloride
  • VILSMEIER SALT
  • (Chlormethylene)dimethylammonium chloride, Vilsmeier reagent
  • N-Chloromethylen-N,N-dimethyl ammonium chloride for synthesis
  • Chloro(dimethylamino)methylium chloride
  • Chlorodimethylformiminium chloride
  • Dimethyl(chloromethylene)ammonium chloride
  • Dimethylchloroformiminium chloride
  • N,N-Dimethylchloroformiminium chloride
  • (Chloromethylene)dimethylammonium chloride96%
  • Dimethyl(chloromethylene)iminium·chloride
  • N-Methyl-N-(chloromethylene)methaneaminium·chloride
  • Arnold's
  • (Chloromethylene)dimethylammonium chloride ammonium chloride
  • (ChloroMethylene)diMethylaMMoniuM chloride, 96% 5GR
  • N-(chloroMethylene)-N-MethylMethanaMiniuM chloride
  • N-CHLOROMETHYLEN-N,N-DIMETHYL AMMONIUM C
  • (ChloroMethylene)diMethylaMMoniuM chloride (6CI,7CI)
  • AMMoniuM, (chloroMethylene)diMethyl-, chloride (8CI)
  • Reagents, Arnold's
  • (ChloroMethylene)diMethyliMiniuM chloride 95%
  • (ChloroMethylene)diMethyliMiniuM Chloride, 95.0%(T)
  • (Chloromethylene)dimethyliminiumChloride&gt
  • chloromethylidene(dimethyl)azanium
  • N-(Chloromethylidene)-N-methylmethanaminium chloride
  • Chloro-N,N-dimethylformiminium chloride
  • Vilsmeier reagent OR (Chloromethylene)dimethyliminium chloride
  • 3724-43-4
  • ClCHNCH32Cl
  • C3H7Cl2N
  • C3H7ClNCl
  • C-C Bond Formation
  • Others
  • Synthetic Reagents