Improsulfan tosilate

Application 1,4-Dimethylpyridinium p-toluenesulfonate is a dimethyl PPTS derivative that has been used as a catalyst in the esterification process for the preparation of side chains of nonlinear optical polymer.

CH₃C&equivCCH₂OSO₂C₆H₄CH₃ CAS#: 56563-37-2 F.W.: 224.28 Requires refrigeration.

Analysis Note Assay (HPLC, area%): &#8805 98.0 % (a/a) Melting range (lower value): &#8805 136 &#176C Melting range (upper value): &#8804 140 &#176C Identity (IR): passes test

Analysis Note Assay (HPLC, area%): &#8805 98.0 % (a/a) Melting range (lower value): &#8805 136 &#176C Melting range (upper value): &#8804 140 &#176C Identity (IR): passes test

Analysis Note Assay (HPLC, area%): &#8805 98.0 % (a/a) Melting range (lower value): &#8805 136 &#176C Melting range (upper value): &#8804 140 &#176C Identity (IR): passes test

Analysis Note Assay (GC, area%): &#8805 98.0 % (a/a) Melting range (lower value): &#8805 66 &#176C Melting range (upper value): &#8804 70 &#176C Identity (IR): passes test

Analysis Note Assay (GC, area%): &#8805 98.0 % (a/a) Melting range (lower value): &#8805 66 &#176C Melting range (upper value): &#8804 70 &#176C Identity (IR): passes test

Analysis Note Assay (GC, area%): &#8805 98.0 % (a/a) Melting range (lower value): &#8805 66 &#176C Melting range (upper value): &#8804 70 &#176C Identity (IR): passes test

Analysis Note Assay (GC, area%): &#8805 98.0 % (a/a) Melting range (lower value): &#8805 66 &#176C Melting range (upper value): &#8804 70 &#176C Identity (IR): passes test

Other Notes Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of unique chemicals. Sigma-Aldrich does not collect analytical data for this product.

Agarose 3:1 Hi-Res Blend, 100g

Application Diethylene glycol di( p -toluenesulfonate) was used in the synthesis of bis (dibenzosulfoxo)-27,30,35,38-tetramethyl-24-crown-6, bis (dibenzosulfoxo)-21,24,29,32-tetramethyl-18-crown-4, dibenzosulfoxo-15,18-dimethyl-12-crown-3 and