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N-Methyl-p-toluenesulfonamide

N-Methyl-p-toluenesulfonamide Structure
N-Methyl-p-toluenesulfonamide structure
CAS No.
640-61-9
Chemical Name:
N-Methyl-p-toluenesulfonamide
Synonyms
MTSA;Benzenesulfonamide, N,4-dimethyl-;-p-toL;NSC2223;NSC 2223;N-Methyl-p-toluenesu;Gliclazide Impurity 1;METHYL-TOLUENESULPHONAMIDE;N-METHYLTOLUENESULFONAMIDE;N-Methyl-p-toluolsulfonaMid
CBNumber:
CB1313402
Molecular Formula:
C8H11NO2S
Molecular Weight:
185.24
MDL Number:
MFCD00008285
MOL File:
640-61-9.mol
MSDS File:
SDS
Last updated:2026-06-24 16:42:25
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N-Methyl-p-toluenesulfonamide Properties

Melting point 76-79 °C (lit.)
Boiling point 296.5±33.0 °C(Predicted)
Density 1.3400
refractive index 1.5650 (estimate)
storage temp. Sealed in dry,Room Temperature
solubility Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Very Slightly)
pka 11.67±0.30(Predicted)
form Crystalline Solid
color White to light yellow
InChI InChI=1S/C8H11NO2S/c1-7-3-5-8(6-4-7)12(10,11)9-2/h3-6,9H,1-2H3
InChIKey GWLOGZRVYXAHRE-UHFFFAOYSA-N
SMILES C1(S(NC)(=O)=O)=CC=C(C)C=C1
CAS DataBase Reference 640-61-9(CAS DataBase Reference)
NIST Chemistry Reference Benzenesulfonamide, n,4-dimethyl-(640-61-9)
EPA Substance Registry System Benzenesulfonamide, N,4-dimethyl- (640-61-9)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P280-P302+P352-P362+P364
PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  37/39-26
WGK Germany  3
TSCA  TSCA listed
HS Code  29350090
Storage Class 11 - Combustible Solids

N-Methyl-p-toluenesulfonamide price More Price(52)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 148601 N-Methyl-p-toluenesulfonamide 98% 640-61-9 100g $176 2026-04-30 Buy
TCI Chemical M1717 N-Methyl-p-toluenesulfonamide >98.0%(HPLC)(N) 640-61-9 25g $50 2026-04-30 Buy
TCI Chemical M1717 N-Methyl-p-toluenesulfonamide >98.0%(HPLC)(N) 640-61-9 250g $138 2026-04-30 Buy
Usbiological 459462 N-Methyl-p-toluenesulfonamide 640-61-9 5g $312 2026-06-03 Buy
Usbiological 459462 N-Methyl-p-toluenesulfonamide 640-61-9 25g $396 2026-06-03 Buy
Product number Packaging Price Buy
148601 100g $176 Buy
M1717 25g $50 Buy
M1717 250g $138 Buy
459462 5g $312 Buy
459462 25g $396 Buy

N-Methyl-p-toluenesulfonamide Chemical Properties,Uses,Production

Chemical Properties

white to light yellow crystalline solid

Uses

N-Methyl-p-toluenesulfonamide was used in the synthesis of vicinal haloamino ketone derivative.

Uses

N-Methyl-p-toluenesulfonamide is an intermediate used in the synthesis of vicinal haloamino ketone derivative.

Reactions

N-Methyl-p-toluenesulfonamide (p-TsNHCH₃), acting as a nitrogen source, forms a catalyst-free amine bromination system with N-bromosuccinimide (NBS), which is used to directly convert various alkenes (including aromatic, aliphatic, and cyclic alkenes) into o-bromoamines[1].
Catalyst-free aminohalogenation with TsNHMe as nitrogen resource.

References

[1] Guangqian Zhang . (2010). Catalyst-free aminobromination of alkenes with N-methyl-p-toluenesulfonamide as nitrogen resource. Tetrahedron Letters, 51 6, Pages 987-989. https://doi.org/10.1016/j.tetlet.2009.12.059

N-Methyl-p-toluenesulfonamide synthesis

98-59-9
74-89-5
640-61-9
Synthesis of N-Methyl-p-toluenesulfonamide from Tosyl chloride and Methylamine

N-Methyl-p-toluenesulfonamide Preparation Products And Raw materials

Raw materials

Preparation Products

N-Nitroso-di-iso-propylamine N-Ethynyl-N,4-dimethylbenzenesulfonamide N-Methyl-N-nitrosotoluene-4-sulphonamide

N-Methyl-p-toluenesulfonamide Suppliers

Global( 241)Suppliers
Supplier Tel Email Country ProdList Advantage
Shouguang Nuomeng Chemical Co Ltd. 0536-5399456 13869682027 holly@nuomengchem.com China 47 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Beijing dtftchem Technology Co., Ltd. 010-60275820 13031183356 elainezt@sina.com China 1386 62
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
Accela ChemBio Co.,Ltd. 021-50795510 4000665055 marketing@accelachem.com China 10972 64
Shanghai Longsheng chemical Co.,Ltd. 58099637 13585536065 sales@shlschem.com China 9880 59
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Supplier Advantage
Shouguang Nuomeng Chemical Co Ltd. 58
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
TCI (Shanghai) Development Co., Ltd. 81
Beijing dtftchem Technology Co., Ltd. 62
Energy Chemical 61
Beijing Ouhe Technology Co., Ltd 60
Accela ChemBio Co.,Ltd. 64
Shanghai Longsheng chemical Co.,Ltd. 59
Shanghai Hanhong Scientific Co.,Ltd. 64

View Lastest Price from N-Methyl-p-toluenesulfonamide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
N,4-Dimethylbenzenesulfonamide pictures 2026-09-02 N,4-Dimethylbenzenesulfonamide
640-61-9
 $1.00-122.00 1KG 99% Henan Fengda Chemical Co., Ltd
N-Methyl-p-Toluene Sulfonamide, MTSA, N-Methyl-p-toluenesulfonamide pictures 2026-08-25 N-Methyl-p-Toluene Sulfonamide, MTSA, N-Methyl-p-toluenesulfonamide
640-61-9
 $5800.00 1KG 99% 200 tons per month Shouguang Nuomeng Chemical Co Ltd.
N-Methyl-p-toluenesulfonamide pictures 2026-05-28 N-Methyl-p-toluenesulfonamide
640-61-9
 $5.60 1KG 99.5% 5000kg Hebei Chuanghai Biotechnology Co,.LTD

N-Methyl-p-toluenesulfonamide Spectrum

N-Methyl-p-toluenesulfonamide(640-61-9)MSN-Methyl-p-toluenesulfonamide(640-61-9)1HNMRN-Methyl-p-toluenesulfonamide(640-61-9)13CNMRN-Methyl-p-toluenesulfonamide(640-61-9)IR1N-Methyl-p-toluenesulfonamide(640-61-9)IR2N-Methyl-p-toluenesulfonamide(640-61-9)Raman

640-61-9(N-Methyl-p-toluenesulfonamide)Related Search:

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Methylparaben Toluenesulfonamide 2-Methylbenzotrifluoride Dimethyl fumarate Tosyl azide
Benzenesulfonamide Dimethyl carbonate Dimethyl sulfoxide Sulfanilamide N,N-Dimethylformamide
Methyl cellulose Metsulfuron methyl Bensulfuron methyl

1of4

n,4-dimethyl-benzenesulfonamide N-METHYL-P-TOLUENESULFONAMIDE (p-Tolylsulfonyl)methylamine n,4-dimethyl-benzenesulfonamid N-Methyl-para-toluenesulfonamide N-Methyl-p-toluolsulfonamide p-Toluene-N-methylsulfonamide p-Toluenesulfonamide, N-methyl- 4,N-Dimethylbenzenesulfonamide N-Methyl-4-methylbenzenesulfonamide N-Methyl-p-toluenesulfonamide,98% N-methyltoluene-4-sulphonamide N-methyl-N-nitroso-P-Tolutenesulfonamide( Diazald) N-Methyl-N-nitroso-P-tolutenesulfonamide N-Methyltoluene-4-sulfonamide. N-METHYL-4-TOLUENESULFONAMIDE METHYL-TOLUENESULPHONAMIDE N-Methy-P-Toluene Sulfonamide N-Methyl-p-toluolsulfonaMid N-Methyl-p-toluenesulfonaMide, MTSA N-Methyl-p-toluenesulfonaMide, 97+% N-Methyl-p-toluenesu N-METHYLTOLUENESULFONAMIDE N-Methyl-p-toluenesulfonamide 98% NSC 2223 NSC2223 p-Toluenesulfonamide, N-methyl- (8CI) Gliclazide Impurity 1 N-Methyl-p-Toluene Sulfonamide, MTSA, N-Methyl-p-toluenesulfonamide N-Methyl-p-toluenesulfonamide> -p-toL N-Methyl-p-toluenesulfonamide ISO 9001：2015 REACH N-Methyl-p-toluenesulphonamide, ≥98% Benzenesulfonamide, N,4-dimethyl- N-Methyl-p-toluenesulfonamide N-Methyl-p-toluenesulfomide N-Methyltoluene sulfonamide (MTSA) MTSA 640-61-9 CH3C6H4SO2NHCH3 Organic Building Blocks Nitrogen Compounds Protected Amines Building Blocks Nitrogen Compounds Organic Building Blocks Protected Amines