Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Chlorobenzenesulfonyl chloride
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
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2905-23-9

2905-23-9 structure

Name: 2-Chlorobenzenesulfonyl chloride
Chemical Name: 2-Chlorobenzenesulfonyl chloride
CAS Number: 2905-23-9
Molecular Formula: C₆H₄Cl₂O₂S
Molecular Weight: 211.066
Catalog: Chemical reagent Organic reagent Acid halide
Create Date: 2018-08-17 16:33:27
Modify Date: 2025-08-26 19:55:38

Name	2-Chlorobenzenesulfonyl chloride
Synonyms	EINECS 220-807-3 Benzenesulfonyl chloride, 2-chloro- Benzenesulfonyl chloride, o-chloro- (6CI,7CI,8CI) 2-chlorobenzene-1-sulfonyl chloride o-Chlorobenzenesulfochloride MFCD00051520 2-chloro-benzenesulfonyl chloride 2-Chlorobenzenesulphonyl chloride WSGR BG 2-Chlorobenzenesulfonyl chloride o-chlorobenzene sulfonic acid chloride Benzenesulfonyl chloride,2-chloro 2-chlorophenylsulfonyl chloride ortho-chlorobenzenesulfonyl chloride o-Chlorobenzenesulfonyl chloride

Density	1.5±0.1 g/cm3
Boiling Point	290.8±23.0 °C at 760 mmHg
Melting Point	28ºC
Molecular Formula	C₆H₄Cl₂O₂S
Molecular Weight	211.066
Flash Point	129.7±22.6 °C
Exact Mass	209.930908
PSA	42.52000
LogP	2.34
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.569

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DB8925500

CHEMICAL NAME :: Benzenesulfonyl chloride, 2-chloro-

CAS REGISTRY NUMBER :: 2905-23-9

BEILSTEIN REFERENCE NO. :: 0974321

LAST UPDATED :: 199612

DATA ITEMS CITED :: 5

MOLECULAR FORMULA :: C6-H4-Cl2-O2-S

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7500 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - other changes

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 54(4),72,1989

TYPE OF TEST :: LC - Lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >2 gm/m3/4H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 54(4),72,1989

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7732 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - other changes

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 54(4),72,1989

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2750 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - other changes

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 54(4),72,1989

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 7320 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - other changes

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 54(4),72,1989

Symbol	GHS02, GHS05
Signal Word	Danger
Hazard Statements	H226-H314
Precautionary Statements	P280-P305 + P351 + P338-P310
Personal Protective Equipment	Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	C:Corrosive;
Risk Phrases	R34
Safety Phrases	S26-S36/37/39-S45
RIDADR	UN 2920 8/PG 2
WGK Germany	2
RTECS	DB8925500
Packaging Group	II
Hazard Class	8
HS Code	2904909090

3900-89-8

2905-23-9

Literature: Debergh, J. Robb; Niljianskul, Nootaree; Buchwald, Stephen L. Journal of the American Chemical Society, 2013 , vol. 135, # 29 p. 10638 - 10641

95-51-2

2905-23-9

Literature: Sokolova, G. D.; Khokhlov, P. S. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 5 p. 547 - 550 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , # 5 p. 654 - 656

17333-83-4

2905-23-9

Literature: Meerwein et al. Chemische Berichte, 1957 , vol. 90, p. 841,843

Precursor 3
3900-89-8 95-51-2 17333-83-4
DownStream 10
111711-69-4 31121-19-4 3320-83-0 27886-58-4
6961-82-6 15946-36-8 100-61-8 6320-03-2
17260-67-2 64900-69-2

HS Code	2904909090
Summary	HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

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