PYRIDINIUM P-TOLUENESULFONATE
Carbetapentane,Pentaquin

1. STRUCTURE
Pyridinium p-toluenesulfonate
2. PRODUCT NAME & DETAILS
Product Name Pyridinium p-toluenesulfonate
Product Code 005851
CAS No 24057-28-1
HS Code 2933.31.00
Molecular Formula C12H13NO3S
Molecular Wt. 251.31
3. SPECIFICATION
Physical Appearance
Off-white Crystalline Powder
Melting Point
116.0 to 120°c
Moisture Content (KF)
NMT 1.00%
Solubility (2.5% In Methanol)
Clear Solution
Identify By FTIR
Sould Comply With Standard
Assay By Titration On Anhydrous Basis
99.0% to 100.5%
4. APPLICATION - Used as general industrial fine chemical.  
- Used as organic soluble source of Pyridium ion.
- It is intermediate of Tacrolimus and Orlistat Immunosuppressant, anti-obesity/pancreatic lipase inhibitor.
In organic synthesis, PPTS is used as a weakly acidic catalyst, providing an organic soluble source of pyridinium  (C5H5NH+) ions. For example, PPTS is used to deprotect silyl ethers or tetrahydropyranyl ethers when a substrate  is unstable to stronger acid catalysts.
- It is also a commonly used catalyst for the preparation of acetals and ketals from aldehydes and ketones.
- As a co-catalyst with L-proline improved both yield and enantioselectivity of an asymmetric aldol condensation between  dioxanones and aldehydes.
5. HAZARD CLASSIFICATION
Non-hazardous substance.

Irritant

6. CAPACITY 25 MT per year.
7. STORAGE CONDITION
Store in closed container at ambient temperature.
Avoid direct sun light. Avoid exposure to moist atmosphere.
8. PACKING DETAILS
25 Kg in HDPE container with PE liners.
9. SHELF LIFE
1 year.
Disclaimer
Typical properties should not be considered as specification.
Product covered by valid patents are not offered or supplied for commercial use. The Patent position should be verified by the customer.
Products will not be supplied to countries where they could be in conflict with existing patents.
Products currently covered by valid US patents are offered for R&D use in accordance with 35 USC 271 (e) (I) Above information is given in good faith and without warrenty.

The above information is given in good faith and is without warranty

Cas No: 24057-28-1 | Molecular Formula: C12H13NO3S