Not official USP-NF text
DEXAMETHASONE SODIUM PHOSPHATE
PF LGS# Brand Type of Test Additional Information
11(6) L11 IBM Phenyl Assay 5-µm.
25(5) L7 ZORBAX RX-C8 Assay 4.6 mm x 25 cm
24(2) L7 ZORBAX RX-C8 Chromatographic purity 4.6 mm x 25 cm.
11(6) L11 IBM Phenyl Limit of . . . . . . . . . Limit of free dexamethasone. Alternative columns in the dimensions of 4.6 mm x 25 cm: Apex Phenyl RP (Jones Chromatography, Inc.); Spherisorb Phenyl RP (Waters).
8(3) S8 Porapak S Limit of . . . . . . . . . Limit of alcohol.
37(5) L7 ZORBAX Eclipse XDB-C8 Limit of . . . . . . . . . Limit of free dexamethasone. 4.6 mm x 15 cm, 5 µm.
17(3) G43 None Cited Organic volatile impurities See Method V 467