Ziyun chemicals Co.,Ltd.
Amino acid,Couping Reagents,Pyridine
|
description |
an off-white or slightly yellowish crystalline |
conforms |
|
identification |
ir positive |
conforms |
|
assay |
not less than 99.5% |
100.5% |
|
water by K.F. |
NOT MORE THAN 0.5% |
0.1% |
|
MELTING POINT |
126-131 |
CONFORMS |
|
RESIDUE ON IGNITION |
NOT MORE THAN 0.3% |
0.04% |
|
CHROMATOGRAPHIC PURITY |
THE MAIN IMPURITY PEAK IS NOT MORE THAN 0.3% AND THE SUM OF ALL THE IMPURITY PEAKS IS NOT MORE THAN 1.0% |
CONFORMS |
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