PYRIDINIUM P-TOLUENESULFONATE
Carbetapentane,Pentaquin

1. STRUCTURE

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.

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.

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