p-Toluenesulfonic acid , Null
CAS NO.：
Empirical Formula: C7H8O3S
Molecular Weight: 172.2
MDL number: MFCD00064387
EINECS: 203-180-0
| Pack Size | Price | Stock | Quantity |
| 5g | RMB763.20 | In Stock |
|
| 25g | RMB2383.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 106~107℃ |
| Boiling point: | 116 °C |
| Density | 1.07 |
| vapor pressure | 69.8Pa at 20℃ |
| refractive index | 1.3825-1.3845 |
| Flash point: | 41 °C |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Solution |
| pka | -0.43±0.50(Predicted) |
| color | Clear colorless to light yellow |
| Odor | pungent odor |
| Water Solubility | soluble |
| LogP | 0.41 at 25℃ |
Description and Uses
p-Toluene sulfonic acid (PTSA) or tosylic acid (TsOH) is an organic compound with the formula CH3C6H4SO3H. It is a white solid that is soluble in water, alcohols, and other polar organic solvents. The 4-CH3C6H4SO2- group is known as tosyl group and is often abbreviated as Ts or Tos. Most often, TsOH refers to the monohydrate, TsOH.H2O.
TsOH is a strong organic acid, about a million times stronger than benzoic acid. It is one of the few strong acids that is solid and, hence, conveniently weighed. Also, unlike some strong mineral acids (especially nitric acid, sulfuric acid, and per chloric acid), TsOH is non - oxidizing.
p-Toluenesulfonic Acid Hydrate (Lisinopril EP Impurity B) is used in the synthesis of resveratrol. Also used in the synthesis of oxane derivatives as antimalarial agents.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P |
| Hazard Codes | C |
| Risk Statements | 34-10 |
| Safety Statements | 45-26-23 |
| RIDADR | 2585 |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 29163990 |
