Cytarabine USP Monograph

[apdoyle]

Hi,

A question on the cytarabine USP HPLC related substances method, which gives a relative response factor of 1.5 for Impurity 1 (RRT 0.38) and Impurity 2 (RRT 0.43).

Does anybody know the identity of these impurities? I can't find any info online - strange that RRFs are provided for impurities whose identities are all but hidden!

Any references would be greatly appreciated,

Thanks in advance
apd

[mattmullaney]

Good afternoon,

Does this help?

https://www.bocsci.com/im-cytarabine-an ... t-692.html

No IDs, unfortunately.