ChemicalBook >> CAS DataBase List >>(Chloromethylene)dimethyliminium chloride

(Chloromethylene)dimethyliminium chloride

(Chloromethylene)dimethyliminium chloride structure

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

Molecular Weight:: 128

MDL Number:: MFCD00011868

MOL File:: 3724-43-4.mol

Last updated:2026-01-13 11:12:30

Product description	Number	Pack Size	Price
(Chloromethylene)dimethyliminium chloride 95%	280909	5g	$59.6
(Chloromethylene)dimethyliminium chloride 95%	280909	25g	$158
(Chloromethylene)dimethyliminium Chloride >95.0%(T)	C1545	25g	$136
(Chloromethylene)dimethyliminium Chloride >95.0%(T)	C1545	250g	$792
(Chloromethylene)dimethylammoniumChloride	C369035	50g	$690
More product size

Request For Quotation

(Chloromethylene)dimethyliminium chloride Properties

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)
FDA UNII	Q39V7G8776
EPA Substance Registry System	Methanaminium, N-(chloromethylene)-N-methyl-, chloride (3724-43-4)
UNSPSC Code	12352101
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS05,GHS07,GHS08

Signal word

Danger

Hazard statements

H302-H314-H360D

Precautionary statements

P260-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338

PPE

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Hazard Codes

Risk Statements

61-20/21/22-34-22-14-35

Safety Statements

53-26-36/37/39-45

RIDADR

UN 3261

WGK Germany

8-10

TSCA

TSCA listed

HazardClass

PackingGroup

HS Code

29252000

Storage Class

6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects

Hazard Classifications

Acute Tox. 4 Oral
Eye Dam. 1
Repr. 1B
Skin Corr. 1A

Limited Quantities

1.0 L (0.3 gallons) (liquid) or 1 Kg (2.2 lbs) (solid)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

NFPA 704

	1
3		0
	W

(Chloromethylene)dimethyliminium chloride price More Price(22)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	280909	(Chloromethylene)dimethyliminium chloride 95%	3724-43-4	5g	$59.6	2025-07-31	Buy
Sigma-Aldrich	280909	(Chloromethylene)dimethyliminium chloride 95%	3724-43-4	25g	$158	2025-07-31	Buy
TCI Chemical	C1545	(Chloromethylene)dimethyliminium Chloride >95.0%(T)	3724-43-4	25g	$136	2025-07-31	Buy
TCI Chemical	C1545	(Chloromethylene)dimethyliminium Chloride >95.0%(T)	3724-43-4	250g	$792	2025-07-31	Buy
TRC	C369035	(Chloromethylene)dimethylammoniumChloride	3724-43-4	50g	$690	2021-12-16	Buy

Product number	Packaging	Price	Buy
280909	5g	$59.6	Buy
280909	25g	$158	Buy
C1545	25g	$136	Buy
C1545	250g	$792	Buy
C369035	50g	$690	Buy

(Chloromethylene)dimethyliminium chloride Chemical Properties,Uses,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

(Chloromethylene)dimethyliminium chloride Suppliers

Global( 186)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shaanxi Dideu Medichem Co. Ltd	+86-029-81138252 +86-173 9270 1263	1057@dideu.com	China	3998	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13800	58
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29831	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	7521	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Alfa Chemistry		info@alfa-chemistry.com	United States	2344	58
Aston Chemical	13000000000	sales@astonchem.com	United States	1634	58
Finetech Industry Limited	+86-27-8746-5837 +8619945049750	info@finetechnology-ind.com	China	9629	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52846	58

Supplier	Advantage
Shaanxi Dideu Medichem Co. Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
career henan chemical co	58
CONIER CHEM AND PHARMA LIMITED	58
Zhengzhou Alfa Chemical Co.,Ltd	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Alfa Chemistry	58
Aston Chemical	58
Finetech Industry Limited	58
Dayang Chem (Hangzhou) Co.,Ltd.	58

View Lastest Price from (Chloromethylene)dimethyliminium chloride manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-12-01	(Chloromethylene)dimethyliminium chloride 3724-43-4	US $0.00 / kg	1kg	99%	10000KGS	Shaanxi Dideu New Materials Co. Ltd
2024-07-12	(Chloromethylene)dimethyliminium chloride 3724-43-4	US $1.00 / KG	1KG	99%	20T	Shaanxi Dideu Medichem Co. Ltd
2021-07-02	(Chloromethylene)dimethyliminium chloride 95% 3724-43-4	US $15.00-10.00 / KG	1KG	99%+ HPLC	Monthly supply of 1 ton	Zhuozhou Wenxi import and Export Co., Ltd

(Chloromethylene)dimethyliminium chloride
3724-43-4
US $0.00 / kg
99%
Shaanxi Dideu New Materials Co. Ltd

(Chloromethylene)dimethyliminium chloride
3724-43-4
US $1.00 / KG
99%
Shaanxi Dideu Medichem Co. Ltd

(Chloromethylene)dimethyliminium chloride 95%
3724-43-4
US $15.00-10.00 / KG
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

(Chloromethylene)dimethyliminium chloride Spectrum

(Chloromethylene)dimethyliminium chloride(3724-43-4)Raman (Chloromethylene)dimethyliminium chloride(3724-43-4)IR

3724-43-4((Chloromethylene)dimethyliminium chloride)Related Search:

tert-Butyldimethylsilyl chloride Ammonium chloride Calcium chloride Didecyl dimethyl ammonium chloride LITHIUM PERIODATE

Mepiquat chloride Chlorodimethylphenylsilane Benzyl chloride DIMETHYLTHEXYLSILYL CHLORIDE Sodium chloride

Choline chloride Dimethyl sulfoxide Polyvinyl 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

1of4

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> 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