How to purify chlorantraniliprole
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Which expert knows how to extract high-purity chlorantraniliprole analysis standards?
It is best to purchase analytical standards directly from the manufacturers of relevant standards, as this is relatively more reliable. If you search online, there should be many. I did a quick search and found one: Guangzhou Jiatu Technology Co., Ltd. offers such standard products. If purifying it oneself, one must consider the possible impurities and design a purification method based on the characteristics of those impurities.
This substance is an amide; I estimate that purification can be achieved by recrystallization using dimethylformamide as the solvent. Recrystallization is a very convenient method for purifying many organic compounds.
I tried recrystallization using dimethylformamide, but it was still difficult to remove the 2 impurity peaks!