CERTIFICATE OF ANALYSIS
Product Name TRIS BUFFER Extra Pure CAS Number 77-86-1
Molecular Formula NH 2 C(CH 2 OH) 3 Catalogue No. AL4690
Molecular Weight 121.14 Batch Number
Manufacturing Date December-2020 Expire Date November-2025

TYPE OF TEST

STANDARD

OBSERVED
Description
Assay
Melting point
Sulphated ash
Biological buffer pKa at 20°C
White crystalline powder
(Min.) 99.0%
165 - 170°C
<0.15%
About 8.3
White crystalline powder
99.15%
168°C
0.09%
8.3
Result: The above product complies with EP grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane