p-Toluenesulfonic Acid (PTSA) (CAS 104-15-4)

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p-Toluenesulfonic Acid (PTSA)

Molekulýar formulaC7H8O3S CAS104-15-4 Molekulýar agram172.20 g/mol

SinonimlerPTSA, Tosic acid, 4-Methylbenzenesulfonic acid

Safety & Hazards (GHS) Warning

Irritant

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

p-Toluenesulfonic Acid (PTSA) is a strong organic acid supplied as white crystals. It is widely used as an acid catalyst.

- Catalyst: Acid catalyst for esterification and resin curing. - Resins: Curing catalyst for amino, furan and phenolic resins. - Pharmaceuticals: Intermediate and salt-forming agent. - Electroplating: Additive in plating baths.

Appearance	Monoclinic leaflets or prisms
Molecular Formula	C7H8O3S
Molecular Weight	172.20 g/mol
Melting Point	106–107 °C
Boiling Point	140 °C at 20 mmHg
Solubility	About 67 g/100 mL water; soluble in alcohol and ether
Flash Point	184 °C (closed cup)

IUPAC Name	4-methylbenzenesulfonic acid
Molekulýar formula	C7H8O3S
Molekulýar agram	172.20 g/mol
SMILES	CC1=CC=C(C=C1)S(=O)(=O)O
InChIKey	JOXIMZWYDAKGHI-UHFFFAOYSA-N

H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation

⚠️ For information only; not a substitute for the official SDS.

p-Toluenesulfonic Acid (PTSA)

p-Toluenesulfonic Acid (PTSA)

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