P-Toluenesulfonic AcidCH₃C₆H₄SO₃H

Formula: CH₃C₆H₄SO₃HCAS: 104-15-4Mol. Wt: 172.20 g/mol

Product Name	P-Toluenesulfonic Acid
SKU	VCP-IND-0003
Category	Speciality Chemicals
Subcategory	Organic Acids
Origin	India
Manufacturer	Vasudev Chemo Pharma

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Export: 1 MT minimum order · Domestic: 220 kg minimum order

About P-Toluenesulfonic Acid

P-Toluenesulfonic Acid (PTSA) is a strong organic acid widely used as a catalyst in esterification, polymerization, and dehydration reactions. It is preferred over mineral acids due to its milder and more selective reactivity. Vasudev Chemo Pharma supplies PTSA in both monohydrate and anhydrous forms, manufactured under strict quality controls at our Gujarat facility. The product is a versatile acid catalyst for resin synthesis, alkyd coatings, and biodiesel transesterification. PTSA is valued for its non-oxidising nature, ease of handling, and clean reaction profiles compared to sulphuric acid or hydrochloric acid.

Technical Specifications

Parameter	Value
Purity	≥ 95.0%
Melting Point	103 – 106°C (monohydrate)
Moisture	≤ 5.0% (monohydrate)
Colour (Hazen)	≤ 50
Sulphated Ash	≤ 0.1%
Iron (Fe)	≤ 10 ppm
pH (10% solution)	1.0 – 2.0
Solubility in Water	Freely soluble

Appearance

White crystalline solid

Molecular Weight

172.20 g/mol

HSN Code

29042090

Applications & Industries

Applications

Esterification catalystPolymerisation catalystAlkyd resin manufacturingBiodiesel productionPharmaceutical synthesisDehydration reactionsCrosslinking catalyst for coatings

Target Industries

Paints & CoatingsResins & PolymersPharmaceuticalsBiofuelsAgrochemicalsFine Chemicals

Safety & Compliance

GHS Classification

Safety Class: Corrosive / Irritant

Signal Word: Danger

GHS05GHS07

Hazard Statements

⚠H314 – Causes severe skin burns and eye damage
⚠H335 – May cause respiratory irritation

Packaging Options & Available Grades

Available Grades

Industrial Grade
Technical Grade
Pharmaceutical Grade

Packaging

25 kg HDPE bags
50 kg fibre drums
500 kg jumbo bags
Custom packaging on request

Minimum Order Quantity

500 kg

Certifications & Quality Assurance

ISO 9001:2015

Documents & Downloads

Content to add

Downloadable documents — Safety Data Sheet (SDS/MSDS), Certificate of Analysis (COA), Technical Data Sheet (TDS), Product Specification Sheet. Each with file type, access level (public / on-request).

Shipping & Export Information

Content to add

Shipping & export details — Export-ready packaging, nearest ports (Kandla, Mundra, Hazira), shipping lead time, Incoterms offered (FOB, CIF, CFR), countries exported to, customs documentation support, HS code for this product.

Frequently Asked Questions

What is p-Toluenesulfonic Acid (PTSA) crystalline catalyst?+

p-Toluenesulfonic Acid (PTSA, CAS 104-15-4) is a strong organic sulfonic acid catalyst supplied as a crystalline monohydrate. It is widely used for polymer curing (thermosetting resins like amino, furan, and phenolic systems), organic synthesis, pharmaceutical APIs, and plasticizer preparation.

What certifications do you provide for PTSA exports?+

We supply PTSA monohydrate from our ISO 9001:2015 certified facility in Gujarat, India. Every export batch is accompanied by a Certificate of Analysis (COA), Safety Data Sheet (SDS), and Technical Data Sheet (TDS). We also offer Halal and Kosher certification on request.

What is the packing and shipping standard for PTSA?+

PTSA is packed in export-grade 25 kg woven HDPE bags with inner LDPE liners, 500 kg big bags, or 1,000 kg jumbo bags to ensure moisture protection. We export globally under HS Code 29041090 with typical sea transits of 7 to 30 days depending on destination port.

Catalyst Chemicals — p-Toluenesulfonic Acid (PTSA)

Applications, Supply & Global Distribution

p-Toluenesulfonic Acid (PTSA, CAS 104-15-4) is a strong organic acid catalyst manufactured by Vasudev Chemo Pharma. It is widely used in organic synthesis, polymer curing (for amino, furan, and phenolic resins), pharmaceutical API manufacturing, and as an acid catalyst in the coatings and plastics industries. Supplied as high-purity crystalline monohydrate with strict moisture controls.