Merck Sharp + Dohme Corp.

Carlos Lopez

Valdas Jurkauskas

Kristos Adrian Moshos

You Seok Hwang

Sudhakar Devidasrao Garad

Jian-Qiao Gu

Pradip M Pathare

This disclosure relates to salt forms of ceftolozane, processes for making these salt forms, and compositions comprising the same. Also disclosed are stabilized compositions of ceftolozane. Provided herein are salt forms of ceftolozane, processes for making these salt forms and compositions comprising the same. The salt forms provided herein include ceftolozane bromide, ceftolozane edisylate, ceftolozane mesylate, ceftolozane chloride, ceftolozane sulfate, ceftolozane maleate, ceftolozane phosphate, and ceftolozane ketoglutarate.

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Burlington, MA, United States of America

Carlos Lopez