After coming out of the cellar, Lawson was not idle for a moment, he entered the room, re-lit the candles, and took out the glasses of Penicillium solution No. 7, No. 9, and No. 15 and placed them on the table.

He had determined that penicillin was in the three bottles of solution, and now, there was one last step left, which was to find the penicillin molecule.

Then, he activated the alchemical power again, and his spirit was immersed in the penicillium solution.

After a while, he sensed a slightly sweet aura with a sharp killing intent at the same time. Compared to other substances in the solution, this breath is very faint, only a little.

In other penicillium solutions, this breath is not present, and No. 15 penicillium solution is the most, No. 9 is the second, and No. 7 is the weakest, which is exactly in line with the previous bactericidal effect.

Rosen was overjoyed: 'It's you!' ’

Finding penicillin is only the first step, the second step is to get enough penicillin to actually cure the disease.

On Earth, there are two ways to obtain penicillin, one is to purify the strain after breeding it over a large area, and the other is to directly synthesize it.

The first method is not suitable for this world, one is that the penicillium beads in this world have not been optimized, and the synthesis of penicillin is not very efficient. Second, if you want to get a sufficient dose of Penicillium, you must consume a large amount of grain, and the world's food productivity is pitiful, and there is not enough to eat, and there is no surplus grain to use to refine medicine.

Therefore, the only way to choose is synthesis.

In order to synthesize artificially, the molecular structure of penicillin must be determined.

Rosen now regrets very much that he didn't carefully look at the drug formula of the cephalosporin capsule when he was on Earth, otherwise he wouldn't have had to go to such trouble now.

"Forget it, the past can't be traced. I have penicillin in this solution, and I've figured it out, and it's not a difficult task to determine the molecular formula. ”

Rosen's alchemy talent is fine to the molecular level, but it is not the naked eye after all. The way he sensed the molecule was to feel a unique breath, but what atoms the breath was made of, his power could not be distinguished.

Thankfully, I still have the collision method. The molecular structure can be determined by using molecules or atoms of known structure to collide with penicillin molecules, observing the collision results, and applying quantum mechanics to calculations. ’

Just do it.

For the rest of his life, Rosen's mind was sometimes immersed in the solution, controlling the water molecules to touch the penicillin molecules from all angles. Sometimes he picked up a quill pen and wrote lines of extremely complex calculation formulas on parchment, and sometimes he lowered his head in contemplation, and the whole person was completely immersed in his own world.

I don't know how long it took, but the quill in Lawson's hand suddenly stopped, and he lay on his back in the chair and let out a long exhale.

It worked. The molecular structure of penicillin, the synthesis method, the sodium salt, the potassium salt, and the method of amino substitution are all available. The next thing to do is to start synthesizing. ’

Rosen didn't start right away, he sat down in his chair, closed his eyes and recuperated, and after feeling his energy regained, he moved the clay jar with water from the corner of the room.

Skillfully using the power of alchemy to sterilize and disinfect the water, then find the fruit with Penicillium No. 15, which are all moldy oranges, which Lawson crushes and throws into the clay jar.

Penicillium 15 has the strongest ability to synthesize penicillin, which means that oranges contain all the elements that synthesize penicillin.

There were seven or eight catties of moldy oranges, and Lawson threw them all into the clay jar, and the water in the clay jar turned into a yellow and clear ball of moldy orange juice.

Taking a deep breath, Rosen's mind was immersed, and using the collision method and the results of his previous calculations, he began to synthesize penicillin.

As the minutes passed, Rosen held the edge of the clay jar with both hands, and his whole body remained motionless, like a wood carving, the only change was that fine beads of sweat continued to seep out of his forehead.

With the support of the talent of the 3rd layer of elemental friends, Lawson's alchemy power has greatly increased, however, the molecules he wants to synthesize are also much more complex, and the raw materials are also diverse, and he must use a variety of different methods to succeed.

For a variety of reasons, Lawson is at least three times less efficient at synthesizing penicillin than nitroglycerin.

On the surface, the moldy orange juice in the clay jar is almost invisible, but at the deeper level, a large number of penicillin molecules are being produced.

After three hours, Rosen's body suddenly moved, he let out a long breath, wiped the sweat from his forehead, and then picked up a glass and scooped a bottle of water into the clay jar.

The strange thing is that the clay jar is obviously pale yellow orange juice, but the glass is indeed clear water.

And that's not all.

Lawson returned to the table with the glass of water in his hand, sat down, and activated the alchemy power again.

The water in the glass suddenly began to surge, and after a while, something white began to precipitate out of the clear water, and the more it settled, the more it precipitated, and finally, the white powder spread a layer of about 5 mm at the bottom of the glass.

Rosen suppressed his excitement, took out a new glass with both hands, and once again activated the alchemy power, fished out the white powder from the water, put it in a clean cup, and then carefully sterilized and sealed the cup.

After doing this, Rosen was completely relieved.

'Penicillin sodium salt, 200 grams, equivalent to 330 million units, should only be needed for one treatment for the average adult...... Millions of units ......, bad, I don't know the exact amount.......

Soon, Rosen discovered a new problem, and that was that he didn't know the exact amount.

Medicine, if it is used well, it is medicine, if it is used poorly, it is poisonous, and if penicillin is used poorly, it is highly toxic and killing!

'Embarrassed. Rosen subconsciously scratched his head.

I don't know how to use the medicine, which is quite embarrassing.

In this other world, he should be the first to treat syphilis macules with penicillin, and it is impossible to ask for advice.

What to do?

There is only one way in front of Rosen, and that is to do experiments and grope forward little by little.

Science has two significant differences from other disciplines, the first being the introduction of mathematics. The second is that everything is based on experimentation.

If mathematics is the beacon of science, then experimentation is the ship to the other side of the truth.

No experiments, no science.

The tall scientific edifice of the earth was built by countless ancestors with the bricks and stones of countless experiments, piece by piece.

I'm on my own, and I hope to succeed." Rosen thought to himself.

It may succeed, but it may also fail, Rosen has no idea in his mind.

Before starting treatment, Rosen began to fold and organize the parchment scrolls in which the experimental records were recorded.

On the parchment, not only the detailed process of discovering penicillin, but also the molecular formula of penicillin and the specific synthesis method are recorded. With these records, even if Rosen suddenly disappeared one day, a fellow traveler who could discover the parchment scrolls would be able to meet his mind in the book and absorb his wisdom.

On the road of science, specific people can fail, but wisdom and experience must be passed on as much as possible, which can at least save the later generations from many detours.

After finishing up, Lawson regained his spirits, prepared normal saline, mixed it with penicillium sodium salt, extracted it with a needle, and then, with the needle, walked towards the cellar again.

As a result, as soon as he walked into the yard, Lawson heard a rooster crowing next door, and when he looked up, the sky was already white.

'Is it dawn so soon?' I didn't feel tired. ’

When he opened the door of the cellar, he saw a faint candlelight in the cellar, and there was a slight movement coming from inside, and it seemed that Mary and little Alice had woken up.

'People have woken up so early these days.' Rosen sighed secretly.

He walked into the cellar.

"Your Excellency."

"Brother."

Both Mary and Little Alice greeted Rosen.

After responding one by one, Rosen knelt down next to the bed, took out the glass syringe containing the medicine and put it beside him, and said softly, "Mary, I have prepared the potion." It's time to treat. ”

Mary froze, her gaze subconsciously staring at the gleaming glass needle. It seemed to her that it was very beautiful, very delicate, she had never seen anything so beautiful, and instinctively felt that it might contain mysterious powers.

Little Alice also quieted down, although she was young, she had been tormented by illness, and difficulties made her mentally more mature than her peers.

Rosen picked up a needle first: "Mary, arm." ”

He doesn't give a high-dose injection right away. Because on Earth, there is a 10% chance of an allergic reaction to penicillins. Before that, he had to make sure that Mary wasn't allergic, and if he could, then he couldn't use any penicillins on Mary, and he would have to go to other antibiotics, which would be very, very troublesome.

Because of this, Rosen's heart is full of thoughts.

Mary was also nervous, her eyes fixed on the shiny metal needle, not knowing what Rosen was going to do.

Rosen took a deep breath, pinched Mary's arm, picked up an intact piece of skin with the tip of a needle, and injected a tiny trace of the potion.

"Ah~It hurts~" Mary shouted subconsciously.

Rosen immediately said: "It's a little painful, bear with it." ”

After injecting Mary, Rosen said to little Alice, "Alice, arm." ”

Little Alice trembled with fright from the shiny metal needles, and she hesitantly stretched out her arms, but turned her head away from looking.

Lawson concocted according to law.

As soon as the tip of the needle pierced into the skin, little Alice cried out 'wow~'. No matter how precocious the mind is, he is still a child after all.

After the subcutaneous injection, Rosen waited nervously.

By now, he has done everything he can, and as for the result, it depends on whether God gives him face.