Stock list of newly added impurities of this week (updated in 20230707).
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| CAT No. | CAS No. | Product Name | Molecular Formula | Molecular Weight | Purity |
| REF-P20011 | 56917-44-3 | Phenylephrine EP Impurity E | C16H17NO2 | 255.32 | 99.35% |
| REF-U01043 | 92411-07-9 | Urosodeoxycholic Acid Impurity 21 | C26H42NNaO5 | 471.61 | 95.15% |
| REF-R19006 | N/A | Rifamycin Impurity 6 | C37H45NO12 | 695.76 | 97.53% |
| REF-R19007 | N/A | Rifamycin Impurity 7 | C37H45NO12 | 695.76 | 93.58% |
| REF-R19008 | N/A | Rifamycin Impurity 8 | C34H41NO11 | 639.7 | N/A |
| REF-R19009 | N/A | Rifamycin Impurity 9 | C37H45NO13 | 711.76 | 97.87% |
| REF-R19010 | N/A | Rifamycin Impurity 10 | C36H43NO12 | 681.74 | 98.52% |
