p-Toluenesulphonamide, 98%

About p-Toluenesulphonamide, 98%

p-Toluenesulphonamide is an organosulfur compound (Synthesis grade) carrying the CAS registry number 70-55-3 at a purity of 98%. Its molecular formula is C7H9NO2S and its molecular weight is 171.22 g/mol. The IUPAC name is 4-methylbenzenesulfonamide. Common synonyms include p-Toluenesulfonamide and 4-Toluenesulfonamide.

In its supplied form it is white powder or crystals. Key physical data: a melting point of 134-137 °C. Keep the container tightly sealed and store it in a cool, dry area. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 500 g, 5 kg and 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	p-Toluenesulphonamide, 98%
Catalogue No.	VQ-010933
CAS Number	70-55-3
IUPAC name	4-methylbenzenesulfonamide
Molecular formula	C₇H₉NO₂S
Molecular weight	171.22 g/mol
Exact mass	171.0354
Grade	Synthesis
Purity / assay	98%
HSN code	29359090
InChIKey	LMYRWZFENFIFIT-UHFFFAOYSA-N
SMILES	CC1=CC=C(C=C1)S(=O)(=O)N
PubChem CID	6269

Physical properties
Physical form	Crystalline
Appearance	White powder or crystals
Melting point	134-137 °C
LogP (XLogP3)	0.8
H-bond donors / acceptors	1 / 3
TPSA	68.5 Å²
Synonyms	p-Toluenesulfonamide, 4-Toluenesulfonamide, Tosylamide, p-Tosylamide, Toluene-4-sulfonamide, Benzenesulfonamide, 4-methyl-, para-Toluenesulfonamide, p-Toluenesulfonylamide, p-Tolylsulfonamide, p-Methylbenzenesulfonamide, Tolylsulfonamide, Toluene-4-sulphonamide

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H319Causes serious eye irritation

Precautionary statements: P264 + P265, P280, P305 + P351 + P338, P337 + P317

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of p-Toluenesulphonamide, 98%?

The CAS Registry Number of p-Toluenesulphonamide, 98% is 70-55-3. It is also known as p-Toluenesulfonamide, 4-Toluenesulfonamide, Tosylamide.

What is the molecular formula and molecular weight of p-Toluenesulphonamide, 98%?

p-Toluenesulphonamide, 98% has the molecular formula C7H9NO2S and a molecular weight of 171.22 g/mol. Its IUPAC name is 4-methylbenzenesulfonamide.

Which grade and pack sizes of p-Toluenesulphonamide, 98% can I order?

We supply p-Toluenesulphonamide, 98% in Synthesis (98%) grade, in 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with p-Toluenesulphonamide, 98%?

Yes. Every lot of p-Toluenesulphonamide, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can p-Toluenesulphonamide, 98% be shipped internationally?

Yes. p-Toluenesulphonamide, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.