Purchase of cyanoacetic acid
At some time, when I wanted to camp, I needed cyanoacetic acid for use. Then I sent servants to visit the city and ask for it. The servants ran to the workshops and inquired about the homes of the colonists, and they all said that this is a special thing, and it is not easy to get it.

The servants returned to inform me. I think, although this cyanoacetic acid is hard to find, it is urgent and cannot be abandoned. I am close to the medicine shops and workshops, and I ask my colleagues everywhere. Or I can ask for it from a distance, and some people who are familiar with the market say: "There is a Jia in the west of the city, and it is quite good to search for rare goods, or you can get this cyanoacetic acid."

So I went to the Jia Wenwu begged, frowned and said, "Cyanoacetic acid has been strictly controlled recently, and it is not easy to purchase. However, since you need it, I will try my best." I was overjoyed and promised a generous reward.

A few days later, Jia sent someone to report that cyanoacetic acid had been purchased. I went to take it, and I was very relieved to see its pure and good quality. Pay for it and bring cyanoacetic acid back for use. Since then, every time I think about the difficulty of buying this thing, I feel that everything is not easy and need to cherish it.