PRODUCT NAME: Amoxicillin EP Impurity C
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	AMO-011
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	2088961-37-7
Alternate CAS Number	NA(sodium salt)
Mol. Formula	C16H19N3O5S
Molecular Wt	365.4 g/mol
IUPAC	(4S)-2-[5-(4-Hydroxyphenyl)-3,6-dioxopiperazin-2-yl]-5,5-dimethylthiazolidine-4-carboxylic acid
Synonyms	Amoxicillin Sodium - Impurity C (EP/BP); (4S)-2-[5-(4-Hydroxyphenyl)-3,6-dioxo-2-piperazinyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid; 4-Thiazolidinecarboxylic acid, 2-[5-(4-hydroxyphenyl)-3,6-dioxo-2-piperazinyl]-5,5-dimethyl-, (4S)-; Amoxicillin rearrangement product; (4S)-2-[5-(4-Hydroxyphenyl)-3,6-dioxopiperazin-2-yl]-5,5-dimethylthiazolidine-4-carboxylic Acid; Amoxicillin Related Compound C (USP)
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	Pale Yellow to Pale Orange Solid
Water content by KF/TGA	Sample COA
% Potency = [100 - (Water content by KF)] X HPLC Purity)] / 100	Sample COA
Identification by HNMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Solubility
Purity	NLT 98%
Analysis Date (Release Date)	Sample COA
Attachments	Sample COA
Other Information	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption