"Dear Professor Geoffrey, I received your email earlier, and I am very sorry to have replied to your question so late because of the delay in the matter at hand. ”

"For this organic compound that you mentioned in the email, if I remember correctly, it should be the molecular formula of some kind of pharmaceutical intermediate. I used to work as a veterinarian for the Kenyan Wildlife Conservation Mission organized by F (International Wildlife Fund), and I remember that I had seen such a molecular formula in the description of a specific anesthetic. As far as I can remember, this drug was supposed to be a special drug developed specifically to anesthetize large mammals such as elephants or rhinos, and many volunteers there called it ildnil, but the scientific name for this pharmaceutical intermediate should probably be U-48800."

Professor Jeffrey read this short email several times in quick succession, and suddenly he had a sudden feeling of enlightenment. For a long time, Professor Jeffrey has always been looking for clues about Chinese white in the drugs used by humans, and has never thought in the direction of veterinary drugs. But now, once the mystery has been solved, Professor Jeffrey thinks that's how it should be.

"Veterinary medicine, or elephants and rhinoceros, why didn't I think of it, no wonder this drug is so powerful......"

"Knock...... Knock knock!"

A crisp knock on the door suddenly broke the silence in the room, and at the same time broke the thoughts of Professor Geoffrey, who was laughing at himself in his head. He looked up and shouted at the visitors waiting outside the door:

"Who's out there?"

"Jeffrey, I'm Osborne from the Metropolitan Police ......"

Hearing Osborne's voice coming from outside the door, Professor Jeffrey hurriedly got up and went to open the door for him. When he opened the door to his office, he was surprised to find that Osborne was followed by a young Asian man.

"Osborne, you came just in time, I just learned what that mysterious substance in China Baizhong is, you definitely can't imagine what this thing is for......

"Hmm...... Professor Jeffrey, please allow me to introduce you to this gentleman, his name is Shuichi Hayashi, he is a police officer from Japan, and the reason why we are here today is actually because I want to ask you for another thing......"

"Nice to meet you, Professor Jeffrey!"

As soon as Lin Xiuyi spoke, he took the initiative to stretch out his hand to express his friendship to the other party, and Professor Jeffrey shook Lin Xiuyi's hand with a slight hesitation.

"You seem to have mentioned China White just now, is there any new development?"

Seeing Professor Jeffrey's slightly restrained appearance, Lin Xiuyi took the initiative to ask the other party about the investigation of China Bai.

"Yes, just before you guys came in, I just received an email from a former student who told me that he had seen the compound in an animal protection organization in Kenya. This is a pharmaceutical intermediate called U-48800, which is the main raw material used to produce a veterinary anesthetic called ildnil. This anesthetic is mainly applied to large mammals such as elephants, rhinos, and giraffes, and it is for this reason that I actually went in the wrong direction in the first place......"

Hearing Lin Xiuyi take the initiative to ask about China Bai, Professor Jeffrey immediately told him the mystery. Especially when Lin Xiuyi heard that this domineering new drug was actually specially designed for an animal of the size of an elephant, he felt an inexplicable sense of joy in his heart for no reason.

"So, Professor Jeffrey, this drug needs to be diluted with a large dose of cutting agent before it can be used by the human body, right?"

Lin Xiuyi continued to ask with some curiosity.

"Hmm...... Based on my recent research on this drug, -48800 is a powerful compound. The human body tolerates it very little. Even a single grain of sugar-sized U-48800 has the potential to cause irreversible and permanent damage to the human brain. Therefore, you should be extra careful when using this drug privately. However, what I find interesting is that the kind of cutting agent made in China that is mixed in Chinese white can surprisingly allow the effects of U-48800 to be released for a long time and slowly.

"Wait a minute, do you mean that the cutting agent wasn't added randomly, but was consciously mixed into the U-48800?"

"Of course, you are aware of the fact that you added it, otherwise, even a small amount of high-purity U-48800 will get on your skin, and you will quickly lose consciousness, unless you are immediately injected with an opioid antidote, otherwise the drug will cause irreversible permanent damage to the human body......"

Seeing that Lin Xiuyi and Professor Jeffrey gradually had an in-depth discussion on the issue of Chinese white, Osborne, who was standing on the sidelines, felt that things might be easier. He looked up, stood between the two of them, listened intently for a moment, and then found an opportunity to explain to Professor Geoffrey what he was here for.

"Professor Jeffrey, in fact, we are here today because we want to ask you for something......

Osborne plucked up his courage and said to Professor Jeffrey with some restraint.

"Oh...... What's the matter?"

"Actually, we would like to ask you to help us redesign the molecular formula of U-48800 and turn it into a new organic derivative with a similar effect to U-48800, but with a different molecular structure......"

"Did I hear you right, Osborne, are you asking me to help you make drugs?"

When Professor Jeffrey heard Osborne's proposal, he quickly became a little excited. He asked Osin with a hint of anger.

"Don't be angry, Professor Jeffrey, and allow us to finish our sentence. We are tracking down a very nefarious human trafficking organization that uses untraceable internet technology to carry out illegal human trafficking. However, in the course of our investigation, we suddenly discovered that one of the important members of this organization was actually selling new drugs such as China White on this platform. We're trying to set a trap for this guy to throw himself into the net, but the only thing we can do to get him excited is to resynthesize a new lab drug based on U-48800 with your extensive knowledge of pharmacology......"

"So...... What you're asking me to do is to do a good deed, to help you catch the Chinese white producers, right?" Professor Jeffrey asked Lin Xiuyi with some vigilance.

"Jeffrey, in the name of Scotland Yard, I assure you that the things you do will never be treated as a violation of the law, and we don't need much of a finished product, just a little bit......"