Terephthaloyl Chloride Halopyridines 2 FORMALDEHYDE (HCHO) 38 -

2 FORMALDEHYDE (HCHO) 38 - 42 g/L 38 - 42 g/L TRACEABLE TO NIST EXPIRATION DATE

0 % COLOR (APHA) 10 CHLORIDE (Cl) 100 ppb NITRATE (NO[@3@]) 200 ppb PHOSPHATE (PO[@4@]) 500 ppb ARSENIC AND ANTIMONY (as AS) 5 ppb Aluminum (Al) 200 ppb BORON (B) 10 ppb CALCIUM (Ca) 300 ppb CHROMIUM (Cr) 200 ppb COPPER (Cu) 100 ppb GOLD (Au) 300 ppb IRON (Fe) 200 ppb LEAD (Pb) 300 ppb MAGNESIUM (Mg) 300 ppb MANGANESE (Mn) 200 ppb NICKEL (Ni) 100 ppb POTASSIUM (K) 300 ppb SODIUM (Na) 300 ppb TIN (Sn) 200 ppb TITANIUM (Ti) 300 ppb ZINC (Zn) 200 ppb PARTICLE COUNT (>/=1

5 RESIDUE ON IGNITION 35 - 50 % 35 - 50 % SPECIFIC ROTATION [a][@D@] +75 to +105 +75 to +105 SULFUR 15 - 21 % 15 - 21 % FREE SULFATE NOT DETECTABLE NOT DETECTABLE LOSS ON DRYING 10%

10% IRON (Fe) 5 ppm HEAVY METALS 5 ppm PROTEIN & LIGHT-ABSORBING IMPURITIES TO PASS TEST TO PASS TEST ENDOTOXIN BY LAL AS REPOPRTED AS REPOPRTED MICROBIAL LIMITS: TOTAL AEROBIC MICROBIAL COUNT 100/g TOTAL MOLDS AND YEASTS 50/g TESTS OF SALMONELLA SPECIES AND E

3 ppm IRON (Fe) 0

Terephthaloyl Chloride Halopyridines 2 FORMALDEHYDE (HCHO) 38 -Test Specification Min Max ASSAY APPROX. 98 % APPROX. 98 %