| Catalogue Number: | L-4420 | 
| Compound Name: | Linagliptin Impurity 7 | 
| Synonyms: | (R)-N-(2-acetylphenyl)-2-(8-(3-aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)acetamide | 
| CAS#: | 2416949-69-2 | 
| Alternate CAS#: | |
| Molecular Formula: | C25H29N7O4 | 
| Molecular Weight: | 491.55 | 
Linagliptin Impurity 97 Trifluoroacetate (Mixture of Isomers)
C33H39F3N8O9. C2HF3O2
M.W. 634.70 114.02