o-Phthalaldehyde >99.0% (GC), used for HPLC fluorescent labeling 643-79-8 C8H6O2 134.13 g./mol ฿1,040.00 View
2,4-Pyridinedicarboxylic acid monohydrate ≥98% 499-80-9 C7H5NO4(anhy) 167.12(anhy) g./mol ฿290.00 View