Methyl tert-Butyl Ether HPLC Grade Nucleic Acid Derivatives RNase and Protease NONE DETECTED

RNase and Protease NONE DETECTED NONE DETECTED

Test Specification Min Max ASSAY 99% 99% MELTING POINT 213 - 219 C 213 - 219 C

20% IDENTIFICATION (A) SPEC MTCHS REF SPEC MTCHS REF IDENTIFICATION (B) POSIT FOR CHLRDE POSIT FOR CHLRDE IDENTIFICATION (C) RETE TM MTCH STD RETE TM MTCH STD RETEST DATE MANUFACTURE DATE APPEARANCE RESIDUAL SOLVENTS AS REPORTED AS REPORTED

00% SPECIFIC ROTATION [a][@D@] +82

2 WATER DETERMINATION 0

Methyl tert-Butyl Ether HPLC Grade Nucleic Acid Derivatives RNase and Protease NONE DETECTEDTest Specification Min Max ASSAY (by GC) 99. 80% ULTRAVIOLET ABSORBANCE (1 cm cell vs. water) TO PASS TEST TO PASS TEST COLOR (APHA) 10 RESIDUE AFTER EVAPORATION 2 ppm PEROXIDE (as H[@2@]O[@2@]) 1 ppm WATER 0. 05% RETEST DATE