Stock list of newly added impurity of this week (updated in 20230623).
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| CAT No. | CAS No. | Product Name | Molecular Formula | Molecular Weight | Purity |
| REF-R31012 | N/A | Rifampicin Impurity 12 | C40H54N4O11 | 766.89 | 97.38% |
| REF-R30009 | 1210022-90-4 | Rifaximin EP Impurity H | C43H51N3O12 | 801.89 | 97.89% |
| REF-E01016 | 124782-63-4 | Epalrestat (Z,Z)-Isomer | C15H13NO3S2 | 319.39 | 99.04% |
| REF-C51027 | N/A | Cefditoren Pivoxil Impurity 27 | C25H28N6O7S3 | 620.71 | 90.23% |
| REF-M03010 | 3761-48-6 | Metoclopramide Impurity 1 | C14H23N3O2 | 265.36 | 97.25% |
| REF-U01042 | 69519-36-4 | Urosodeoxycholic Acid Impurity 20 | C26H44O4 | 420.63 | 95.73% |
| REF-R04006 | N/A | Relugolix Impurity 6 | C27H24F2N6O6S | 598.58 | 97.22% |
| REF-P52004 | 25322-68-3 | Polyethylene Glycol | C5H12O2 | 104.15 | N/A |
| REF-R39005 | N/A | Rispiran Impurity 5 | C23H23N7O2 | 429.48 | 99.47% |
| REF-R19020 | N/A | Rifamycin Impurity 19 | C35H43NO11 | 653.72 | 97.50% |
