Sulfonyl halides

Organic compounds that contain a carbon bonded to a sulfonyl functional group (a sulfur atom bonded with two oxygen atoms via double bonds) that is bonded to a halogen atom; halogen atoms include bromine, chlorine, fluorine, and iodine.

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Sigma Aldrich Tetrabutylammonium Fluoride Solution

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

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Linear Formula	[CH3(CH2)3]4NF
CAS	429-41-4
Molecular Weight (g/mol)	261.46 g/mol
MDL Number	MFCD00011747
Health Hazard 1	UN 2924 8(3) / PGII
Synonym	TBAF solution
Recommended Storage	2°C to 8°C
Molecular Formula	C16H36FN
Density	0.903 g/mL at 25°C

Methanesulfonyl chloride, 98%

CAS: 124-63-0 Molecular Formula: CH3ClO2S Molecular Weight (g/mol): 114.54 MDL Number: MFCD00007454 InChI Key: QARBMVPHQWIHKH-UHFFFAOYSA-N Synonym: mesyl chloride,methylsulfonyl chloride,methyl sulfochloride,methanesulphonyl chloride,chloro methyl sulfone,methanesulfuryl chloride,methanesulfonic acid chloride,methyl sulfonyl chloride,chloromethyl sulfone,mesylchloride PubChem CID: 31297 IUPAC Name: methanesulfonyl chloride SMILES: CS(Cl)(=O)=O

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PubChem CID	31297
CAS	124-63-0
Molecular Weight (g/mol)	114.54
MDL Number	MFCD00007454
SMILES	CS(Cl)(=O)=O
Synonym	mesyl chloride,methylsulfonyl chloride,methyl sulfochloride,methanesulphonyl chloride,chloro methyl sulfone,methanesulfuryl chloride,methanesulfonic acid chloride,methyl sulfonyl chloride,chloromethyl sulfone,mesylchloride
IUPAC Name	methanesulfonyl chloride
InChI Key	QARBMVPHQWIHKH-UHFFFAOYSA-N
Molecular Formula	CH3ClO2S

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2-Bromobenzenesulfonyl chloride, 97%

CAS: 2905-25-1 Molecular Formula: C6H4BrClO2S Molecular Weight (g/mol): 255.51 MDL Number: MFCD00051971 InChI Key: VFPWGZNNRSQPBT-UHFFFAOYSA-N Synonym: 2-bromobenzene-1-sulfonyl chloride,2-bromobenzenesulphonyl chloride,2-bromosulfonyl chloride,o-bromobenzenesulfonyl chloride,2-bromophenylsulfonyl chloride,2-bromobenzenesulfonylchloride,2-bromobenzenesulphonylchloride,2-bromophenyl chlorosulfone,2-bromo-benzenesulfonyl chloride,2-bromobenzene sulfonyl chloride PubChem CID: 520403 IUPAC Name: 2-bromobenzenesulfonyl chloride SMILES: ClS(=O)(=O)C1=CC=CC=C1Br

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PubChem CID	520403
CAS	2905-25-1
Molecular Weight (g/mol)	255.51
MDL Number	MFCD00051971
SMILES	ClS(=O)(=O)C1=CC=CC=C1Br
Synonym	2-bromobenzene-1-sulfonyl chloride,2-bromobenzenesulphonyl chloride,2-bromosulfonyl chloride,o-bromobenzenesulfonyl chloride,2-bromophenylsulfonyl chloride,2-bromobenzenesulfonylchloride,2-bromobenzenesulphonylchloride,2-bromophenyl chlorosulfone,2-bromo-benzenesulfonyl chloride,2-bromobenzene sulfonyl chloride
IUPAC Name	2-bromobenzenesulfonyl chloride
InChI Key	VFPWGZNNRSQPBT-UHFFFAOYSA-N
Molecular Formula	C6H4BrClO2S

PubChem CID	31297
CAS	124-63-0
Molecular Weight (g/mol)	114.54
MDL Number	MFCD00007454
SMILES	CS(Cl)(=O)=O
Synonym	mesyl chloride,methylsulfonyl chloride,methyl sulfochloride,methanesulphonyl chloride,chloro methyl sulfone,methanesulfuryl chloride,methanesulfonic acid chloride,methyl sulfonyl chloride,chloromethyl sulfone,mesylchloride
IUPAC Name	methanesulfonyl chloride
InChI Key	QARBMVPHQWIHKH-UHFFFAOYSA-N
Molecular Formula	CH3ClO2S

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8-Quinolinesulfonyl chloride, 98%

CAS: 18704-37-5 Molecular Formula: C₉H₆ClNO₂S Molecular Weight (g/mol): 227.67 InChI Key: JUYUYCIJACTHMK-UHFFFAOYSA-N Synonym: 8-quinolinesulfonyl chloride,8-chlorosulfonyl-1-benzazine,8-quinolylsulfonyl chloride,quinoline-8-sulfonic acid chloride,unii-5zik3tjs9m,8-quinolinesulfonylchloride,quinoline-8-sulphonyl chloride,5zik3tjs9m,pubchem5873,acmc-1busp PubChem CID: 29220 IUPAC Name: quinoline-8-sulfonyl chloride SMILES: C1=CC2=C(C(=C1)S(=O)(=O)Cl)N=CC=C2

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PubChem CID	29220
CAS	18704-37-5
Molecular Weight (g/mol)	227.67
SMILES	C1=CC2=C(C(=C1)S(=O)(=O)Cl)N=CC=C2
Synonym	8-quinolinesulfonyl chloride,8-chlorosulfonyl-1-benzazine,8-quinolylsulfonyl chloride,quinoline-8-sulfonic acid chloride,unii-5zik3tjs9m,8-quinolinesulfonylchloride,quinoline-8-sulphonyl chloride,5zik3tjs9m,pubchem5873,acmc-1busp
IUPAC Name	quinoline-8-sulfonyl chloride
InChI Key	JUYUYCIJACTHMK-UHFFFAOYSA-N
Molecular Formula	C₉H₆ClNO₂S

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Trifluoromethanesulfonyl chloride, 99%

CAS: 421-83-0 Molecular Formula: CClF3O2S Molecular Weight (g/mol): 168.51 MDL Number: MFCD00007451 InChI Key: GRGCWBWNLSTIEN-UHFFFAOYSA-N Synonym: trifluoromethanesulphonyl chloride,triflyl chloride,methanesulfonyl chloride, trifluoro,trifluoromethanesulfonylchloride,trifluoro-methanesulfonyl chloride,methanesulfonylchloride, trifluoro,trifluoromethylsulfonyl chloride,triflic chloride,pfc-msc,cf3so2cl PubChem CID: 79000 IUPAC Name: trifluoromethanesulfonyl chloride SMILES: FC(F)(F)S(Cl)(=O)=O

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PubChem CID	79000
CAS	421-83-0
Molecular Weight (g/mol)	168.51
MDL Number	MFCD00007451
SMILES	FC(F)(F)S(Cl)(=O)=O
Synonym	trifluoromethanesulphonyl chloride,triflyl chloride,methanesulfonyl chloride, trifluoro,trifluoromethanesulfonylchloride,trifluoro-methanesulfonyl chloride,methanesulfonylchloride, trifluoro,trifluoromethylsulfonyl chloride,triflic chloride,pfc-msc,cf3so2cl
IUPAC Name	trifluoromethanesulfonyl chloride
InChI Key	GRGCWBWNLSTIEN-UHFFFAOYSA-N
Molecular Formula	CClF3O2S

3-Cyanobenzylsulfonyl chloride, 97%, Thermo Scientific™

CAS: 56106-01-5 Molecular Formula: C8H6ClNO2S Molecular Weight (g/mol): 215.651 MDL Number: MFCD09046692 InChI Key: YNWYDZBBHOWDAE-UHFFFAOYSA-N Synonym: 3-cyanophenyl methanesulfonyl chloride,3-cyanobenzylsulfonyl chloride,3-cyanophenyl methanesulphonyl chloride,3-chlorosulphonyl methyl benzonitrile,3-cyano-phenyl-methanesulfonyl chloride,3-cyanobenzylsulphonyl chloride,3-cyano benzylsulfonyl chloride,benzenemethanesulfonylchloride, 3-cyano,3-cyano-phenyl methanesulfonyl chloride,3-chlorosulfonyl methyl benzenecarbonitrile PubChem CID: 16774314 IUPAC Name: (3-cyanophenyl)methanesulfonyl chloride SMILES: C1=CC(=CC(=C1)CS(=O)(=O)Cl)C#N

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PubChem CID	16774314
CAS	56106-01-5
Molecular Weight (g/mol)	215.651
MDL Number	MFCD09046692
SMILES	C1=CC(=CC(=C1)CS(=O)(=O)Cl)C#N
Synonym	3-cyanophenyl methanesulfonyl chloride,3-cyanobenzylsulfonyl chloride,3-cyanophenyl methanesulphonyl chloride,3-chlorosulphonyl methyl benzonitrile,3-cyano-phenyl-methanesulfonyl chloride,3-cyanobenzylsulphonyl chloride,3-cyano benzylsulfonyl chloride,benzenemethanesulfonylchloride, 3-cyano,3-cyano-phenyl methanesulfonyl chloride,3-chlorosulfonyl methyl benzenecarbonitrile
IUPAC Name	(3-cyanophenyl)methanesulfonyl chloride
InChI Key	YNWYDZBBHOWDAE-UHFFFAOYSA-N
Molecular Formula	C8H6ClNO2S

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alpha-Toluenesulfonyl chloride, 98%

CAS: 1939-99-7 Molecular Formula: C₇H₇ClO₂S Molecular Weight (g/mol): 190.64 MDL Number: MFCD00007455 InChI Key: OAHKWDDSKCRNFE-UHFFFAOYSA-N Synonym: alpha-toluenesulfonyl chloride,benzylsulfonyl chloride,benzenemethanesulfonyl chloride,benzylsulfochloride,.alpha.-toluenesulfonyl chloride,methanesulfonyl chloride, phenyl,alpha-toluenesulfonylchloride,phenylmethylsulfonyl chloride,phenylmethanesulphonyl chloride,phenyl-methanesulfonyl chloride PubChem CID: 74740 IUPAC Name: phenylmethanesulfonyl chloride SMILES: C1=CC=C(C=C1)CS(=O)(=O)Cl

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PubChem CID	74740
CAS	1939-99-7
Molecular Weight (g/mol)	190.64
MDL Number	MFCD00007455
SMILES	C1=CC=C(C=C1)CS(=O)(=O)Cl
Synonym	alpha-toluenesulfonyl chloride,benzylsulfonyl chloride,benzenemethanesulfonyl chloride,benzylsulfochloride,.alpha.-toluenesulfonyl chloride,methanesulfonyl chloride, phenyl,alpha-toluenesulfonylchloride,phenylmethylsulfonyl chloride,phenylmethanesulphonyl chloride,phenyl-methanesulfonyl chloride
IUPAC Name	phenylmethanesulfonyl chloride
InChI Key	OAHKWDDSKCRNFE-UHFFFAOYSA-N
Molecular Formula	C₇H₇ClO₂S

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4'-Methylbiphenyl-4-sulfonyl chloride, 97%, Thermo Scientific™

CAS: 101366-51-2 Molecular Formula: C₁₃H₁₁ClO₂S Molecular Weight (g/mol): 266.75 InChI Key: DBYXACYHGMSPMQ-UHFFFAOYSA-N Synonym: 4'-methylbiphenyl-4-sulfonyl chloride,4'-methyl 1,1'-biphenyl-4-sulfonyl chloride,4-4-methylphenyl benzenesulfonyl chloride,4-4-methylphenyl phenyl sulphonyl chloride,4'-methyl-1,1'-biphenyl-4-sulfonyl chloride,4-p-tolyl benzenesulfonyl chloride,acmc-20amef,4-4-chlorosulphonyl phenyl toluene,4-chlorosulphonyl-4'-methylbiphenyl PubChem CID: 2794758 IUPAC Name: 4-(4-methylphenyl)benzenesulfonyl chloride SMILES: CC1=CC=C(C=C1)C2=CC=C(C=C2)S(=O)(=O)Cl

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PubChem CID	2794758
CAS	101366-51-2
Molecular Weight (g/mol)	266.75
SMILES	CC1=CC=C(C=C1)C2=CC=C(C=C2)S(=O)(=O)Cl
Synonym	4'-methylbiphenyl-4-sulfonyl chloride,4'-methyl 1,1'-biphenyl-4-sulfonyl chloride,4-4-methylphenyl benzenesulfonyl chloride,4-4-methylphenyl phenyl sulphonyl chloride,4'-methyl-1,1'-biphenyl-4-sulfonyl chloride,4-p-tolyl benzenesulfonyl chloride,acmc-20amef,4-4-chlorosulphonyl phenyl toluene,4-chlorosulphonyl-4'-methylbiphenyl
IUPAC Name	4-(4-methylphenyl)benzenesulfonyl chloride
InChI Key	DBYXACYHGMSPMQ-UHFFFAOYSA-N
Molecular Formula	C₁₃H₁₁ClO₂S

4-[(6-Methylpyrazin-2-yl)oxy]benzenesulfonyl chloride, 97%, Thermo Scientific™

CAS: 926921-66-6 Molecular Formula: C11H9ClN2O3S Molecular Weight (g/mol): 284.71 MDL Number: MFCD09879936 InChI Key: GUJMBSPJUZJPEB-UHFFFAOYSA-N Synonym: 4-6-methylpyrazin-2-yl oxy benzenesulfonyl chloride,4-6-methylpyrazin-2-yl oxy benzene-1-sulfonyl chloride PubChem CID: 24229688 IUPAC Name: 4-(6-methylpyrazin-2-yl)oxybenzenesulfonyl chloride SMILES: CC1=CN=CC(OC2=CC=C(C=C2)S(Cl)(=O)=O)=N1

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PubChem CID	24229688
CAS	926921-66-6
Molecular Weight (g/mol)	284.71
MDL Number	MFCD09879936
SMILES	CC1=CN=CC(OC2=CC=C(C=C2)S(Cl)(=O)=O)=N1
Synonym	4-6-methylpyrazin-2-yl oxy benzenesulfonyl chloride,4-6-methylpyrazin-2-yl oxy benzene-1-sulfonyl chloride
IUPAC Name	4-(6-methylpyrazin-2-yl)oxybenzenesulfonyl chloride
InChI Key	GUJMBSPJUZJPEB-UHFFFAOYSA-N
Molecular Formula	C11H9ClN2O3S

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Benzenesulfonyl chloride, 99%

CAS: 98-09-9 Molecular Formula: C₆H₅ClO₂S Molecular Weight (g/mol): 176.62 MDL Number: MFCD00007426 InChI Key: CSKNSYBAZOQPLR-UHFFFAOYSA-N Synonym: phenylsulfonyl chloride,benzene sulfochloride,benzenesulfonic chloride,benzenosulfochloride,benzene sulfonechloride,benzenosulfochlorek,benzenesulfonic acid chloride,benzenesulphonyl chloride,benzolsulfochloride,benzenesulfochloride PubChem CID: 7369 IUPAC Name: benzenesulfonyl chloride SMILES: C1=CC=C(C=C1)S(=O)(=O)Cl

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PubChem CID	7369
CAS	98-09-9
Molecular Weight (g/mol)	176.62
MDL Number	MFCD00007426
SMILES	C1=CC=C(C=C1)S(=O)(=O)Cl
Synonym	phenylsulfonyl chloride,benzene sulfochloride,benzenesulfonic chloride,benzenosulfochloride,benzene sulfonechloride,benzenosulfochlorek,benzenesulfonic acid chloride,benzenesulphonyl chloride,benzolsulfochloride,benzenesulfochloride
IUPAC Name	benzenesulfonyl chloride
InChI Key	CSKNSYBAZOQPLR-UHFFFAOYSA-N
Molecular Formula	C₆H₅ClO₂S

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4-Chlorobenzenesulfonyl chloride, 97%

CAS: 98-60-2 Molecular Formula: C6H4Cl2O2S Molecular Weight (g/mol): 211.06 MDL Number: MFCD00007439 InChI Key: ZLYBFBAHAQEEQQ-UHFFFAOYSA-N Synonym: 4-chlorobenzene-1-sulfonyl chloride,benzenesulfonyl chloride, 4-chloro,p-chlorophenylsulfonyl chloride,p-chlorobenzenesulfonyl chloride,4-chlorobenzenesulfonylchloride,benzenesulfonyl chloride, p-chloro,p-chlorbenzensulfochlorid,4-chlorophenylsulfonyl chloride,4-chlorobenzenesulphonyl chloride,4-chloro-benzenesulfonyl chloride PubChem CID: 7398 IUPAC Name: 4-chlorobenzenesulfonyl chloride SMILES: ClC1=CC=C(C=C1)S(Cl)(=O)=O

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PubChem CID	7398
CAS	98-60-2
Molecular Weight (g/mol)	211.06
MDL Number	MFCD00007439
SMILES	ClC1=CC=C(C=C1)S(Cl)(=O)=O
Synonym	4-chlorobenzene-1-sulfonyl chloride,benzenesulfonyl chloride, 4-chloro,p-chlorophenylsulfonyl chloride,p-chlorobenzenesulfonyl chloride,4-chlorobenzenesulfonylchloride,benzenesulfonyl chloride, p-chloro,p-chlorbenzensulfochlorid,4-chlorophenylsulfonyl chloride,4-chlorobenzenesulphonyl chloride,4-chloro-benzenesulfonyl chloride
IUPAC Name	4-chlorobenzenesulfonyl chloride
InChI Key	ZLYBFBAHAQEEQQ-UHFFFAOYSA-N
Molecular Formula	C6H4Cl2O2S

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(3,5-Dichlorophenyl)methanesulfonyl chloride, 97%, Thermo Scientific Chemicals

CAS: 163295-70-3 Molecular Formula: C7H5Cl3O2S Molecular Weight (g/mol): 259.53 MDL Number: MFCD01631928 InChI Key: GZMJRPMBVICCFL-UHFFFAOYSA-N Synonym: 3,5-dichlorophenyl methanesulfonyl chloride,3,5-dichloro-phenyl-methanesulfonyl chloride,acmc-1c80o,3,5-dichloro-,a-toluenesufonyl chloride,3,5-dichlorophenyl methyl chlorosulfone,3,5-dichlorophenyl methanesulfonylchloride,3,5-dichloro-alpha-toluenesulfonyl chloride,3,5-dichlorophenyl methane-sulfonyl chloride,benzenemethanesulfonylchloride, 3,5-dichloro,3,5-dichlorophenyl methyl sulfonyl chloride PubChem CID: 4993270 IUPAC Name: (3,5-dichlorophenyl)methanesulfonyl chloride SMILES: ClC1=CC(CS(Cl)(=O)=O)=CC(Cl)=C1

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PubChem CID	4993270
CAS	163295-70-3
Molecular Weight (g/mol)	259.53
MDL Number	MFCD01631928
SMILES	ClC1=CC(CS(Cl)(=O)=O)=CC(Cl)=C1
Synonym	3,5-dichlorophenyl methanesulfonyl chloride,3,5-dichloro-phenyl-methanesulfonyl chloride,acmc-1c80o,3,5-dichloro-,a-toluenesufonyl chloride,3,5-dichlorophenyl methyl chlorosulfone,3,5-dichlorophenyl methanesulfonylchloride,3,5-dichloro-alpha-toluenesulfonyl chloride,3,5-dichlorophenyl methane-sulfonyl chloride,benzenemethanesulfonylchloride, 3,5-dichloro,3,5-dichlorophenyl methyl sulfonyl chloride
IUPAC Name	(3,5-dichlorophenyl)methanesulfonyl chloride
InChI Key	GZMJRPMBVICCFL-UHFFFAOYSA-N
Molecular Formula	C7H5Cl3O2S

2-Oxoindoline-5-sulfonyl chloride, 97%, Thermo Scientific™

CAS: 199328-31-9 Molecular Formula: C8H6ClNO3S Molecular Weight (g/mol): 231.65 MDL Number: MFCD06655924 InChI Key: FYBNVKMJOOYPGI-UHFFFAOYSA-N Synonym: 2-oxoindoline-5-sulfonyl chloride,2-oxo-2,3-dihydro-1h-indole-5-sulfonyl chloride,2-oxoindoline-5-sulfonylchloride,2-oxoindoline-5-sulphonyl chloride,2,3-dihydro-2-oxo-1h-indole-5-sulphonyl chloride,1h-indole-5-sulfonyl chloride, 2,3-dihydro-2-oxo,5-chlorosulfonyl indolin-2-one,5-chlorosulphonyloxindole,5-chlorosulfonyl oxindole,5-chlorosufonyl-2-oxindole PubChem CID: 4962506 SMILES: ClS(=O)(=O)C1=CC2=C(NC(=O)C2)C=C1

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PubChem CID	4962506
CAS	199328-31-9
Molecular Weight (g/mol)	231.65
MDL Number	MFCD06655924
SMILES	ClS(=O)(=O)C1=CC2=C(NC(=O)C2)C=C1
Synonym	2-oxoindoline-5-sulfonyl chloride,2-oxo-2,3-dihydro-1h-indole-5-sulfonyl chloride,2-oxoindoline-5-sulfonylchloride,2-oxoindoline-5-sulphonyl chloride,2,3-dihydro-2-oxo-1h-indole-5-sulphonyl chloride,1h-indole-5-sulfonyl chloride, 2,3-dihydro-2-oxo,5-chlorosulfonyl indolin-2-one,5-chlorosulphonyloxindole,5-chlorosulfonyl oxindole,5-chlorosufonyl-2-oxindole
InChI Key	FYBNVKMJOOYPGI-UHFFFAOYSA-N
Molecular Formula	C8H6ClNO3S

5-Bromopyridine-3-sulfonyl chloride, 97%, Thermo Scientific™

CAS: 65001-21-0 Molecular Formula: C5H3BrClNO2S Molecular Weight (g/mol): 256.498 MDL Number: MFCD08235263 InChI Key: AVILRJQPDYPXFQ-UHFFFAOYSA-N Synonym: 5-bromopyridine-3-sulphonyl chloride,5-bromo-3-pyridinesulfonyl chloride,5-bromopyridine-3-sulfonylchloride,5-bromo-pyridine-3-sulfonyl chloride,5-bromo 3-pyridyl chlorosulfone,5-bromopyridin-3-sulfonyl chloride,3-bromopyridine-5-sulfonyl chloride,5-bromopyridine-3-sulphonylchloride,5-bromo-3-chlorosulphonyl pyridine,3-pyridinesulfonylchloride, 5-bromo PubChem CID: 20324474 IUPAC Name: 5-bromopyridine-3-sulfonyl chloride SMILES: C1=C(C=NC=C1Br)S(=O)(=O)Cl

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PubChem CID	20324474
CAS	65001-21-0
Molecular Weight (g/mol)	256.498
MDL Number	MFCD08235263
SMILES	C1=C(C=NC=C1Br)S(=O)(=O)Cl
Synonym	5-bromopyridine-3-sulphonyl chloride,5-bromo-3-pyridinesulfonyl chloride,5-bromopyridine-3-sulfonylchloride,5-bromo-pyridine-3-sulfonyl chloride,5-bromo 3-pyridyl chlorosulfone,5-bromopyridin-3-sulfonyl chloride,3-bromopyridine-5-sulfonyl chloride,5-bromopyridine-3-sulphonylchloride,5-bromo-3-chlorosulphonyl pyridine,3-pyridinesulfonylchloride, 5-bromo
IUPAC Name	5-bromopyridine-3-sulfonyl chloride
InChI Key	AVILRJQPDYPXFQ-UHFFFAOYSA-N
Molecular Formula	C5H3BrClNO2S

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