p-Toluenesulfonic acid CAS No.104-15-4
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Category：Pharmaceutical Materials Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
CAS No.104-15-4
Name
p-Toluenesulfonic Acid
Synonyms
TL65
TL65LS
PTSA 70
PTS ACID
Tosic acid
toluene-4-sulphonic
Toluene-p-sulfonate
p-tolylsulfonicacid
Toluenesulfonic acid
p-Toluenesulfonic Acid
P-Toluene Sulfonic Acid
ParaTolune Sulfonic Acid
P-Toluene Sulphonic Acid
para toluene sulfonic acid
PARATOLUENE SULPHONIC ACID
Methylbenzenesulfonic acid
para toluene sulphonic acid
4-methylbenzenesulfonic acid
| Property | Details |
|---|---|
| Name | p-Toluenesulfonic acid |
| Synonyms | Methylbenzenesulfonic acid; Tosic acid; P-Toluene Sulfonic Acid; 4-methylbenzenesulfonic acid; p-Toluenesulfonic acid (Anhydrous); etc. |
| CAS Number | 104-15-4 |
| EINECS Number | 203-180-0 |
| Molecular Formula | C7H8O3S |
| Molecular Weight | 172.202 g/mol |
| Physical State | White crystalline solid |
| Density | 1.3±0.1 g/cm³ |
| Melting Point | 106~107°C |
| Boiling Point | 116°C or 140°C (varied sources) |
| Flash Point | 41°C |
| Refractive Index | 1.563 |
| Solubility | Soluble in ethanol and ether, slightly soluble in water and hot benzene |
| Toxicity | Moderately toxic; irritates skin, eyes, and mucous membranes |
| LD50 | 2480 mg/kg (oral, rat); 400 mg/kg (oral, mouse) |
| Applications | Used in pharmaceuticals, pesticides, dyes, detergents, plastics, and printing inks; as an acid catalyst in organic synthesis |
| Synthesis Route | Mainly obtained by sulfonation of toluene with concentrated sulfuric acid |
| Storage Conditions | Store in a cool, dry place, away from fire and incompatible chemicals |
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