Research Chemicals & Building Blocks
Levothyroxine For Peak Identification
| Product Code | Ax-IMP2325 |
| CAS Number | 55-03-8 |
| Molecular Formula | C15H11I4NO4 |
| Molecular Weight | 776.87 |
Acarbose Impurity A
| Product Code | Ax-IMP820 |
| CAS Number | 1013621-79-8 |
| Molecular Formula | C25H43NO18 |
| Molecular Weight | 645.6 |
Esomeprazole Sodium Reference Standard
| Product Code | Ax-IMP2326 |
| CAS Number | 161796-78-7 |
| Molecular Formula | C17H18N3NaO3S |
| Molecular Weight | 367.4 |
Pantoprazole Sodium Sesquihydarate Reference Standard
| Product Code | Ax-IMP2327 |
| CAS Number | 164579-32-2 |
| Molecular Formula | C16H14F2N3O4S.Na.xH2O |
| Molecular Weight | 405.35 |
Fexofenadine Process Impurity
| Product Code | Ax-IMP819 |
| CAS Number | 185066-40-4 |
| Molecular Formula | C31H37NO2 |
| Molecular Weight | 455.64 |
Sitagliptin Process Impurity 5
| Product Code | Ax-IMP2329 |
| CAS Number | 767352-30-7 |
| Molecular Formula | C17H14F3NO2 |
| Molecular Weight | 321.3 |
Fexofenadine EP Impurity A
| Product Code | Ax-IMP817 |
| CAS Number | 76811-98-8 |
| Molecular Formula | C32H37NO4 |
| Molecular Weight | 499.65 |
4-Desfluoro Sitagliptin
| Product Code | Ax-IMP2328 |
| CAS Number | 486460-31-5; 1345822-87-8 (salt) |
| Molecular Formula | C16H16F5N5O |
| Molecular Weight | 389.32 |
5-Desfluoro Sitagliptin
| Product Code | Ax-IMP2330 |
| CAS Number | 1345822-86-7 |
| Molecular Formula | C16H16F5N5O.H3O4P |
| Molecular Weight | 389.33.97.99 |
Fexofenadine EP Impurity C
| Product Code | Ax-IMP818 |
| CAS Number | 185066-37-9 |
| Molecular Formula | C31H39NO2 |
| Molecular Weight | 457.66 |
Doxepin Impurity A
| Product Code | Ax-IMP2331 |
| CAS Number | 4504-87-4 |
| Molecular Formula | C14H10O2 |
| Molecular Weight | 210.23 |
Levetiracetam Carboxylic Acid
| Product Code | Ax-IMP816 |
| CAS Number | 102849-49-0 |
| Molecular Formula | C18H13NO3 |
| Molecular Weight | 171.2 |
Doxepin Impurity B
| Product Code | Ax-IMP2332 |
| CAS Number | 4504-88-5 |
| Molecular Formula | C19H23NO2 |
| Molecular Weight | 297.39 |
Risperidone Process Impurity 1
| Product Code | Ax-IMP815 |
| CAS Number | 691007-05-3 |
| Molecular Formula | C12H14F2N2O |
| Molecular Weight | 240.25 |
Ezetimibe Polymorph Form B
| Product Code | Ax-IMP2333 |
| CAS Number | NA |
| Molecular Formula | C24H21F2NO3 |
| Molecular Weight | 409.43 |
Risperidone EP Impurity A
| Product Code | Ax-IMP811 |
| CAS Number | 691007-09-7 |
| Molecular Formula | C23H28F2N4O2 |
| Molecular Weight | 430.5 |
Flurbiprofen Impurity
| Product Code | Ax-IMP2334 |
| CAS Number | 42771-81-3 |
| Molecular Formula | C20H21FO4 |
| Molecular Weight | 344.38 |
Flurbiprofen Process Impurity 4
| Product Code | Ax-IMP2336 |
| CAS Number | 78543-08-5 |
| Molecular Formula | C14H18FNO4 |
| Molecular Weight | 283.3 |
Risperidone EP Impurity B
| Product Code | Ax-IMP812 |
| CAS Number | 132961-05-8 |
| Molecular Formula | C23H28F2N4O2 |
| Molecular Weight | 430.5 |
Flurbiprofen Process Impurity 3
| Product Code | Ax-IMP2335 |
| CAS Number | 78543-06-3 |
| Molecular Formula | C14H16FNO6 |
| Molecular Weight | 313.28 |
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