» Sterile Erythromycin Ethylsuccinate is Erythromycin Ethylsuccinate suitable for parenteral use. It has a potency equivalent to not less than 765 µg of erythromycin (C37H67NO13) per mg, calculated on the anhydrous basis.
Sterility 71
It meets the requirements when tested as directed for Direct Inoculation of the Culture Medium under Test for Sterility of the Product to be Examined.
Heavy metals 231
Dissolve 1 g in 25 mL of water, and proceed as directed for Method I: the limit is 0.002%.