p-Toluenesulphonic anhydride, 97%

Name: p-Toluenesulphonic anhydride, 97%
Brand: Vaqora Chemicals
SKU: VQ-010935

About p-Toluenesulphonic anhydride, 97%

p-Toluenesulphonic anhydride (CAS 4124-41-8) is an organosulfur compound offered by Vaqora Chemicals, specified at 97% purity. With the molecular formula C14H14O5S2, it has a molar mass of 326.4 g/mol. Its systematic (IUPAC) name is (4-methylphenyl)sulfonyl 4-methylbenzenesulfonate. Alternative names: p-Toluenesulfonic anhydride and Toluene-p-sulphonic anhydride.

In its supplied form it is white to off-white powder or crystals. Key physical data: a melting point of 121-127 °C. Keep the container tightly sealed and store it in a cool, dry area. It carries the GHS signal word “Danger” with 1 hazard statement. Review the Safety Data Sheet before use.

It is commonly used for catalysis and organic synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies p-Toluenesulphonic anhydride in 5 g, 25 g and 100 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Catalysis
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	p-Toluenesulphonic anhydride, 97%
Catalogue No.	VQ-010935
CAS Number	4124-41-8
IUPAC name	(4-methylphenyl)sulfonyl 4-methylbenzenesulfonate
Molecular formula	C₁₄H₁₄O₅S₂
Molecular weight	326.4 g/mol
Exact mass	326.0283
Purity / assay	97%
HSN code	29399900
InChIKey	PDVFSPNIEOYOQL-UHFFFAOYSA-N
SMILES	CC1=CC=C(C=C1)S(=O)(=O)OS(=O)(=O)C2=CC=C(C=C2)C
PubChem CID	77773

Physical properties
Physical form	Crystalline
Appearance	White to off-white powder or crystals
Melting point	121-127 °C
LogP (XLogP3)	3.1
H-bond donors / acceptors	0 / 5
TPSA	94.3 Å²
Synonyms	p-Toluenesulfonic anhydride, Toluene-p-sulphonic anhydride, 4-Methylbenzenesulfonic anhydride, 4-Toluenesulfonic anhydride, Benzenesulfonic acid, 4-methyl-, anhydride, P-Toluenesulfonicanhydride, p-toluene sulfonic anhydride, Toluene-4-sulfonic anhydride, 4-methylbenzenesulfonyl 4-methylbenzene-1-sulfonate, 4-toluenesulfonic acid anhydride, 4-Methylbenzenesulfonicanhydride, Ts2O

Safety & hazard information (GHS)

Corrosive

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements: P260, P264, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P321, P363, P405, P501

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-Toluenesulphonic anhydride, 97%?

The CAS Registry Number of p-Toluenesulphonic anhydride, 97% is 4124-41-8. It is also known as p-Toluenesulfonic anhydride, Toluene-p-sulphonic anhydride, 4-Methylbenzenesulfonic anhydride.

What is the molecular formula and molecular weight of p-Toluenesulphonic anhydride, 97%?

p-Toluenesulphonic anhydride, 97% has the molecular formula C14H14O5S2 and a molecular weight of 326.4 g/mol. Its IUPAC name is (4-methylphenyl)sulfonyl 4-methylbenzenesulfonate.

Which grade and pack sizes of p-Toluenesulphonic anhydride, 97% can I order?

We supply p-Toluenesulphonic anhydride, 97% in (97%) grade, in 5 g, 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with p-Toluenesulphonic anhydride, 97%?

Yes. Every lot of p-Toluenesulphonic anhydride, 97% 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-Toluenesulphonic anhydride, 97% be shipped internationally?

Yes. p-Toluenesulphonic anhydride, 97% 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.