Hypromellose Acetate Succinate

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Hydroxypropyl methylcellulose acetate succinate;
Cellulose, 2-hydroxypropyl methyl ether, acetate hydrogen butanedioate;
Cellulose, 2-hydroxypropyl methyl ether, acetate succinate [71138-97-1]

DEFINITION

Hypromellose Acetate Succinate is a mixture of acetic acid and monosuccinic acid esters of hydroxypropyl methylcellulose. It contains NLT 12.0% and NMT 28.0% of methoxy groups (–OCH₃), NLT 4.0% and NMT 23.0% of hydroxypropoxy groups (–OCH₂CHOHCH₃), NLT 2.0% and NMT 16.0% of acetyl groups (–COCH₃), and NLT 4.0% and NMT 28.0% of succinoyl groups (–COC₂H₄COOH), calculated on the dried basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP Hypromellose Acetate Succinate RS

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