CERTIFICATE OF ANALYSIS

Product Name	BES BUFFER For Biochemistry	CAS Number	10191-18-1
Molecular Formula	C6H15NO5S	Catalogue No.	AL0687
Molecular Weight	213.25	Batch Number
Manufacturing Date	December-2020	Expire Date	November-2025

TYPE OF TEST	STANDARD	OBSERVED
Assay (Alkalimetric) Identity (IR) UV-Absorption (250nm,5%,1cm,water) Chloride (Cl) Sulphate (SO4) Heavy metals (as Pb) Sodium (Na) Loss on drying (105 0c) Biological buffer pka at 20 0c	99 % min. Passes test 0.05 max 0.005%max 0.005%max 0.0005%max 0.01%max 0.5%max 7.15	99.9% Passes test 0.013 <0.005% <0.005% <0.0005% <0.01% 0.09% 7.15

Result: The above product complies with LR grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane