Amoxicillin Sodium - Impurity I (EP); (R)-2-(4-Hydroxyphenyl)glycine; Benzeneacetic Acid, α-amino-4-hydroxy-, (R)-; (2R)-2-Amino-2-(4-hydroxyphenyl)acetic Acid; (R)-2-Amino-2-(4-hydroxyphenyl)acetic Acid; D-hydroxyphenylglycine; (R)-2-Amino-2-(4-hydroxyphenyl)acetic Acid; Amoxicillin Related Compound I (USP);(2R)-2-amino-2-(4-hydroxyphenyl)acetic acid;p-Hydroxy-(R)-phenylglycine;