Clarithromycin EP Impurity B

Order Clarithromycin EP Impurity B product with CAS: 299409-85-1 and speed up your Clarithromycin project. This product is also known as 6-O-Methyl-15-norerythromycin A; (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-12,13-dihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-7-methoxy-3,5,7,9,11,13,14-heptamethyloxacyclotetradecane-2,10-dione. and can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require.