Ruxolitinib is a selective Janus kinase (JAK) inhibitor commonly used under the brand name Jakafi for the treatment of myelofibrosis and polycythemia vera. By targeting JAK1 and JAK2 enzymes, it helps regulate the overactive signaling pathways involved in these hematologic disorders. Maintaining the pharmaceutical purity of Ruxolitinib is essential to ensure its therapeutic efficacy, patient safety, and adherence to regulatory standards. Impurity profiling is crucial for detecting and controlling unwanted by-products that may arise during manufacturing, storage, or degradation. Here are some of its known impurities listed below.
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Catalogue No : RUXO-OCL-005
CAS No : 1911644-32-0
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Synonyms
3-(4-(7H-Pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)-3-cyclopentylpropanamide
3-(4-(7H-Pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)-3-cyclopentylpropanamide

Catalogue No : RUXO-OCL-001
CAS No : 941688-05-7
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Synonyms
β-Cyclopentyl-4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazole-1-propanenitrile
β-Cyclopentyl-4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazole-1-propanenitrile

Catalogue No : RUXO-OCL-002
CAS No : 941685-26-3
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Synonyms
4-Chloro-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine
4-Chloro-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine

Catalogue No : RUXO-OCL-003
CAS No : 941685-27-4
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Synonyms
4-(1H-Pyrazol-4-yl)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine
4-(1H-Pyrazol-4-yl)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine

Catalogue No : RUXO-OCL-004
CAS No : 952518-97-7
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Synonyms
4-(1H-Pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidine
4-(1H-Pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidine