o-Toluenesulfonic Acid

Name: o-Toluenesulfonic Acid
Brand: Vaqora Chemicals
SKU: VQ-032623

About o-Toluenesulfonic Acid

Listed under CAS 88-20-0, o-Toluenesulfonic Acid is an impurity of Edoxaban available from Vaqora Chemicals. Its molecular formula is C7H8O3S and its molecular weight is 172.2 g/mol. Its systematic (IUPAC) name is 2-methylbenzenesulfonic acid. Common synonyms include Toluene-2-sulfonic acid and Benzenesulfonic acid, 2-methyl-.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Pharmaceutical QC and development laboratories use this impurity standard of Edoxaban to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer o-Toluenesulfonic Acid in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Edoxaban

View every impurity, metabolite and intermediate we list for Edoxaban.

Edoxaban impurities

Specifications & identifiers

Chemical identifiers
Product name	o-Toluenesulfonic Acid
Catalogue No.	VQ-032623
CAS Number	88-20-0
IUPAC name	2-methylbenzenesulfonic acid
Molecular formula	C₇H₈O₃S
Molecular weight	172.2 g/mol
Exact mass	172.0194
Grade	Reference Standard
HSN code	38229090
InChIKey	LBLYYCQCTBFVLH-UHFFFAOYSA-N
SMILES	CC1=CC=CC=C1S(=O)(=O)O
PubChem CID	6925

Physical properties
Physical form	Solid
LogP (XLogP3)	1
H-bond donors / acceptors	1 / 3
TPSA	62.8 Å²
Synonyms	Toluene-2-sulfonic acid, Benzenesulfonic acid, 2-methyl-, 2-Toluenesulfonic acid, Toluene-2-sulphonic acid, 2-methylbenzene-1-sulfonic acid, 2-Methyl Benzenesulfonic acid, toluensulfonic acid, toluene-sulfonic acid, toluene sulphonic acid, 2-toluene-sulfonic acid, 2-methylbenzenesulfonicacid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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 o-Toluenesulfonic Acid?

The CAS Registry Number of o-Toluenesulfonic Acid is 88-20-0. It is also known as Toluene-2-sulfonic acid, Benzenesulfonic acid, 2-methyl-, 2-Toluenesulfonic acid.

What is the molecular formula and molecular weight of o-Toluenesulfonic Acid?

o-Toluenesulfonic Acid has the molecular formula C7H8O3S and a molecular weight of 172.2 g/mol. Its IUPAC name is 2-methylbenzenesulfonic acid.

What is o-Toluenesulfonic Acid used for?

o-Toluenesulfonic Acid is supplied as a characterised reference material related to Edoxaban. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of o-Toluenesulfonic Acid can I order?

We supply o-Toluenesulfonic Acid in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with o-Toluenesulfonic Acid?

Yes. Every lot of o-Toluenesulfonic Acid 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 o-Toluenesulfonic Acid be shipped internationally?

Yes. o-Toluenesulfonic Acid 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.