Dimercaptosuccinic acid is a white crystalline powder with a unique smell of sulfhydryl, and as time slowly passes, finally the white crystals in the test tube slowly increase.

Yi Qing was relieved, and the next step was to test for impurities and purity.

During the synthesis of the drug, other compounds unrelated to the target drug are derived, some of which have no efficacy, and some of which have an effect that has a negative effect on the body. Again, the production of these compounds is inevitable.

On the basis of mass spectrometry analysis, Yiqing analyzed the composition and content of related impurities, and further purified the physical and chemical characteristics of impurities—finally obtained relatively pure dimercaptosuccinic acid.

Dimercaptosuccinic acid was approved by the FDA in 1991 as an oral treatment for lead poisoning in children, so it is relatively safe, and Yiqing cannot choose the dosage form of injection treatment - the synthesis of injection solution is more difficult.

"It's not easy!" Yi Qing sighed, this night really didn't close her eyes.

Because the dosage of the drug is very small, even less than one gram, Yiqing weighs the appropriate dose with an analytical balance according to Ruomei's weight, and then numbers and packages it in turn with a cut paper package.

Before leaving the space, Yiqing went through the synthesis method of antibiotics again, and then opened the fermenter to prepare for the production of cephalosporins - after a night of busy thinking and thinking, Yiqing decided to synthesize a relatively basic, classic, and relatively small drug ceftriaxone.

Yiqing directly gave up penicillin, mainly because of the allergic reaction to penicillin: penicillin is a hapten substance of the drug, and after entering the body, its degradation products will stimulate the body to produce specific antibodies, making the body sensitized, and re-exposure to penicillin will trigger an allergic reaction.

And the incidence of this allergic reaction has a lot to do with the production process, here only Yiqing is alone, and the risk factor of the drug is too great! So Yiqing directly gave up penicillin-like drugs!

……

Yiqing was busy in the space, and Yilan was not idle outside: busy sorting out the life deeds and interpersonal relationships of the souls, and the information given by Grandma Yuan was very detailed—Yilan quickly listed the events according to the degree of difficulty.

"Sister, you haven't slept yet?" Yi Qing asked in surprise.

Yilan rubbed his sour eyes and said, "I'm almost asleep, isn't this just the right thing to sort out all the information of these people......

Yi Qing's heart was full of hope, quickly flipped through the information, and replied, "I hope it works!" In the past two days, my face has been very uncomfortable, and I thought it was the itching of the scab of the wound after the operation! But I didn't expect it to be like this now! ”

Yi Qing took off her scarf and the gauze on her face, and saw that new bumps had grown back on the surgical incision site, and they were darker and larger than those cut off! It's still wrapped in a trace of black gas!

Yilan was taken aback! said: "It's only been the first few days?!" Why is it so big all of a sudden! ”

Yiqing smiled helplessly, but the pull of the wound still made her feel painful, and her face was even more hideous!

"Smack!" There was a slight sound of landing outside the courtyard, and if you were asleep, you wouldn't be able to detect it!

Yi Qing and the others immediately restrained their breath and quietly hid in the innermost part of the inner room.

The footsteps outside were very soft, walking and stopping, and walking back and forth: one could hear as if they were looking for something......

The two of them hid in the locker behind the mirror, and there was a thick cloth vine on the outside of the cabinet, Yiqing could only observe through the gap in the middle of the cabinet, but unfortunately the vision was half blocked by the cloth vine - they couldn't see the faces of the people outside! I can only see the bottom half of the black clothes and a pair of black shoes!

Seeing that the man in black was about to open Yiqing's hiding place, there was the sound of other people's grinning footsteps outside, and the man in black stood quietly in front of the cabinet door and hesitated for a long time, but turned to leave?!

The two people hiding in the cabinet were in a hurry! How come the management of the Zhang Mansion has been lax like this? Also, most of the voices here are so loud! Why hasn't anyone noticed anyone coming in here? And why didn't the little peach and bunting wake up?!

People outside rummaged through the cabinets, and the floor was soon in shambles! A fat man sat very obscenely on the Qingfeng bed. As far as the eye could see, Yiqing finally saw the appearance of the person who came!

The vengeful inspector is finally here!

The inspector lifted the quilt from the bed and rubbed his hands on his greasy fat face, his eyes showing a look of enjoyment.

A guy ran over and reported, "Master! I've searched all over the house! No one in sight! ”

The inspector was stunned for a moment, and said with a smile: "The little girl is really smart!" Keep flipping, haven't we ever seen them go out? Still squatting at home! ”

The little guy patted his ass and said, "It's still the master's wisdom and martial arts!" We admire! If you want to say that this medicine really works, a big point is that all the people in this house have fallen asleep! ”

The inspector looked lewd and scolded with a smile: "It's your kid who can speak, I'll be happy in a while, and let you be the second one!" I'm going to let these two girls be 'above board' for a good time! ”

The inspector resented that he had appeared naked in front of the door of the Wanhualou with an old woman, and he often felt that he still felt the terrible rough skin texture of the old woman when he woke up in the middle of the night......

And as soon as he did that, the inspector would be like that day, and the fort that had just been erected would instantly lie down and the inspector withered!

The inspector was extremely angry and angry everywhere, but he no longer had the skin of an official, and he even dared to give himself a look! As if he was laughing at his younger brother for not being angry......

And all this happened when I was dealing with these two girls!

The inspector was not at all grateful to Zhang Fu for saving his life! He had never heard of the need for a cure! And such a treatment is also used by some good people to laugh at themselves......

The inspector seemed to see Yilan's clothes leaking outside the cabinet, laughed, and opened the cabinet door.

"Quick! Guys, get me! ”

The inspector sat triumphantly on the bed, looked at the two sisters who were subdued, and said, "You guys are hiding! Why don't you stay away if you have the ability?! With that, he commanded his entourage to slam the two of them to the ground.

Yiqing's teeth itched, and she went to Prince Heng's mansion in the morning to ask Rui Xiaowang for someone to protect herself, but before the person came, she was poisoned......

Yiqing said: "My lord, we are all little girls, young and ignorant, and we have offended you, so you have a lot of us!" I promise that if you go out today, we will never report to the official! ”

"Young and ignorant?" The inspector laughed: "I'm afraid it's not likely!" You asked me to guess which of you two was good-looking that night! Why do you regret it now? ”

Yiqing shut up and didn't speak.

Yilan said anxiously: "My lord, the whole thing is my fault, Sister Yiqing is still young, please let her go, I am willing to be a cow and a horse to repay your mercy!" ”

"Hahahaha!" The inspector felt that he had heard a big joke, and asked rhetorically: "This Yiqing girl is the number one talented girl in the capital!" I've seen a lot of beauties, and I'm still wondering what it's like to be a talented woman today! ”

Yilan still didn't give up, and said: "We have a good relationship with Rui Xiao Wangye, please be more respectful!" ”

Yilan still wanted to beg for mercy, but the inspector ignored her and talked to Yiqing instead: "Sister Yiqing, who played the most beautiful game with me before; Then let's play one today, too! The name is called: Which of you wants to be my little wife? I just need one of you! ”

"So you can let the other guy go?!" Yi Qing asked rhetorically.

The inspector laughed and said, "Of course! As long as the other one is comfortable serving my brothers, we will naturally release them! ”

Yi Lan angrily rebuked: "Shameless! Dirty! Kill us! ”

"Dirty?" The inspector asked rhetorically, causing his entourage to laugh.

The little girl answered: "No matter how obscene you are, you can't catch up with the two girls, and you dare to strip off the master's clothes at a young age!" And the medicine for the old man to make an aphrodisiac made the old man confused and did things in front of Wanhua Building...... We can't do this, my lord, our brothers! These two girls are really role models for my generation!! ”

The inspector said slowly: "Say, who wants to be my concubine?" Who wants to solve the 'trouble' for my brothers"!

Yi Qing gritted her teeth and didn't answer, only glaring at a group of men with vicious eyes!

The inspector was impatient, and the little guy hurriedly said: "Stinky girls, don't you toast or eat and drink!" Mistaken master's mood, the master doesn't want any of them! And also threw you two naked into the Wanhua Building?! ”

The two of them continue to carry it hard, and it is a point to be able to drag one share, and it is best to drag it until everyone is sober!

The inspector apparently had the same idea, and asked again, "Have you thought about it?" The Spring Festival is worth a thousand gold! If you delay any longer, we're going to have to come hard! We're going to take the bait! ”

Yilan gritted her teeth and whispered to Yiqing: "Sister, don't worry, I won't let them bully you!" You'll take off your face towel in a moment! They won't embarrass you! ”

"Sir, don't you just like me?" After Yilan whispered his instructions, he said loudly to the inspector: "As long as I guarantee my sister's safety and safety, then I will let you deal with it!" ”

"Hahahaha!" The inspector sneered at Yiqing and said, "How is it, Sister Yiqing, are you particularly moved by your sister?" Then why did you accept her kindness with peace of mind? Why don't you come to me too? Maybe I'll let her go! ”

Vile! This is already a blatant sowing of discord!

Yi Qing still didn't believe that the inspector would let him go easily, and said sarcastically: "My lord, don't just say that you don't move! You know how to use your mouth to ridicule others! I've been sitting for so long, I'm afraid there is something wrong with my body, right?! ”

Yi Qing's words immediately angered the inspector.

The inspector said angrily: "The first talented woman in the capital! Good name, but I don't know if the clothes are the best in the world?! You guys, undress me for her! ”