L-Threonine, USP, JP, bioCERTIFIED (TM) Analytical Reagents For USP Testing 24% ELEMENTAL IMPURITIES AS REPORTED

24% ELEMENTAL IMPURITIES AS REPORTED AS REPORTED ELECTROPHORETIC PURITY TO PASS TEST TO PASS TEST MICROBIAL LIMITS: TOTAL BACTERIAL COUNT 1000 cfu/g TOTAL YEASTS AND MOLDS COUNT 100 cfu/g SALMONELLA NEGATIVE NEGATIVE ESCHERICHIA COLI NEGATIVE NEGATIVE EXPIRATION DATE MANUFACTURE DATE APPEARANCE RESIDUAL SOLVENTS TO PASS TEST TO PASS TEST

10% HEAVY METALS 10 PPM CHLORIDE TO PASS TEST TO PASS TEST ORGANIC IMPURITIES TO PASS TEST TO PASS TEST IDENTIFICATION TO PASS TEST TO PASS TEST EXPIRATION DATE RESIDUAL SOLVENTS TO PASS TEST TO PASS TEST

Test Specification Min Max CONGEALING RANGE 47

1-TRICHLOROETHANE 1500 ppm CLASS 2 (solvent) / ACETONITRILE 410 ppm CLASS 2 (solvent) / CHLOROBENZENE 360 ppm CLASS 2 (solvent) / CHLOROFORM 60 ppm CLASS 2 (solvent) / CYCLOHEXANE 3880 ppm CLASS 2 (solvent) / 2-ETHOXYETHANOL 160 ppm CLASS 2 (solvent) / HEXANE 290 ppm CLASS 2 (solvent) / 2-METHOXYETHANOL 50 ppm CLASS 2 (solvent) / METHYLCYCLOHEXANE 1180 ppm CLASS 2 (solvent) / METHYLENE CHLORIDE 600 ppm CLASS 2 (solvent) / NITROMETHANE 50 ppm CLASS 2 (solvent) / TETRAHYDROFURAN 720 ppm CLASS 2 (solvent) / TETRALIN 100 ppm CLASS 2 (solvent) / TOLUENE 890 ppm CLASS 2 (solvent) / TRICHLOROETHENE 80 ppm CLASS 2 (solvent) / XYLENE 2170 ppm CLASS 3 (solvent) / ACETIC ACID 5000 ppm CLASS 3 (solvent) / ETHANOL 5000 ppm CLASS 3 (solvent) / ETHYL ETHER 5000 ppm CLASS 3 (solvent) / HEPTANE 5000 ppm CLASS 3 (solvent) / ISOBUTYL ACETATE 5000 ppm CLASS 3 (solvent) / ISOPROPYL ACETATE 5000 ppm CLASS 3 (solvent) / 2-METHYL-1-PROPANOL 5000 ppm CLASS 3 (solvent) / 1-PROPANOL 5000 ppm CLASS 3 (solvent) / 2-PROPANOL 5000 ppm CLASS 3 (solvent) / PROPYL ACETATE 5000 ppm

2 RATIO OF SILICON DIOXIDE TO CALCIUM OXIDE 0

L-Threonine, USP, JP, bioCERTIFIED (TM) Analytical Reagents For USP Testing 24% ELEMENTAL IMPURITIES AS REPORTED