N-(2-Acetamido)-2-aminoethanesulfonic Acid [Good's buffer component for biological research] Amino Acid Ethyl Esters 5 % AMMONIUM SALTS TO

5 % AMMONIUM SALTS TO PASS TEST TO PASS TEST FLUORIDE 0

8 % WATER 0

50% COLOR OF A 4% SOLUTION TO PASS TEST TO PASS TEST COMPLETENESS OF SOLUTION TO PASS TEST TO PASS TEST SOLUBILITY IN ALCOHOL TO PASS TEST TO PASS TEST pH OF 3

Test Specification Min Max MAGNESIUM (Mg) 9950 - 10050 ppm 9950 - 10050 ppm EXPIRATION DATE

03% IRON 30 ppm ELEMENTAL IMPURITIES: CADMIUM (Cd) AS REPORTED AS REPORTED LEAD (Pb) AS REPORTED AS REPORTED ARSENIC (As) AS REPORTED AS REPORTED MERCURY (Hg) AS REPORTED AS REPORTED RELATED COMPOUNDS TO PASS TEST IDENTIFICATION TO PASS TEST EXPIRATION DATE DATE OF MANUFACTURE APPEARANCE RESIDUAL SOLVENTS TO PASS TEST

N-(2-Acetamido)-2-aminoethanesulfonic Acid [Good's buffer component for biological research] Amino Acid Ethyl Esters 5 % AMMONIUM SALTS TO