1. State: Yellow to light yellow powder

2.The content is more than 98%.

3.It is used as an intermediate of dyes, photosensitive materials and drugs such as nitrendipine, nimodipine and nicardipine. It is an intermediate of organic synthesis such as medicine, dyes and surfactants. In the pharmaceutical industry, it is used to synthesize calcium iodopropionate, iodopanic acid, m-hydroxylamine bistartrate, nimodipine, nicardipine, nitrendipine, nirudipine and so on. Used as intermediates in organic synthesis of dyes, surfactants and medicines. In the pharmaceutical industry, it is used in the production of calcium iodopropionate, iodopanic acid, choloramidine calcium, M-hydroxy bis-tartaric acid, nifedipyridine, etc.