PRODUCT NAME: Levodopa - Impurity B
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	FIN-108
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	60-18-4
Alternate CAS Number	Hydrochloride: 16870-43-2
Mol. Formula	C₉H₁₁NO₃
Molecular Wt	181.19
IUPAC	(2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid
Synonyms	L-Tyrosine;(-)-α-Amino-p-hydroxyhydrocinnamic Acid; Therigon; p-Tyrosine; (2S)-2-Amino-3-(4-hydroxyphenyl)propanoic Acid; (S)-2-Amino-3-(4-hydroxyphenyl)propanoic Acid; (S)-Tyrosine; (S)-α-Amino-4-hydroxybenzenepropanoic Acid; L-(-)-Tyrosine;Levodopa EP Impurity B
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	White to Off-White 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	Aqueous Acid (Slightly), Aqueous Base (Slightly)
Purity	>98.5%(T)
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