If you had to choose an identity to go undercover, you'd choose a gynecologist.

When Mingtai returned home, he handed the bottle of penicillin to Mingjing and explained its effects.

Mingjing disagreed: "The best antibacterial and anti-inflammatory drugs on the market right now are sulfonamides, and they are controlled drugs. We can only produce them secretly. Even foreign countries can't produce better anti-inflammatory drugs. How could a gynecologist possibly produce them on his own?"

"Anyway, I don't understand it. Why don't you take it to the pharmaceutical factory and have the pharmaceutical experts test its effectiveness?"

"Okay, you can leave it there. I'm going to the Suzhou factory today, so I'll take it there for them to evaluate."

Mingjing put the bottle of penicillin into her bag, went out, and took a car to Suzhou.

Upon arriving in Suzhou, Mingjing, accompanied by Dr. Huang, the technical director, inspected the production of sulfonamides. This was not only a source of income for the Ming family, but also supplied a large amount of sulfonamides to Yan'an every month, so Mingjing naturally attached great importance to it.

After the inspection, she prepared to go to the Suzhou black market to purchase a batch of explosives for the Red Party.

At that moment, she remembered the bottle of penicillin that Mingtai had given her, and she stopped in her tracks.

Mingjing took the bottle of penicillin out of her bag and handed it over: "A friend gave it to me. It's called penicillin. He says its antibacterial and anti-inflammatory effects are dozens of times better than sulfonamides. Test its effectiveness, analyze the ingredients, and report back to me."

Dr. Huang took the small bottle, pinched the bottle with his fingertips, and examined it carefully. The white powder inside the transparent glass looked unremarkable.

He frowned subconsciously: "Sulfanilamide is currently the best antibacterial drug, and it is strictly controlled. What is this penicillin? I'll go test it right away and report back to you immediately."

In the laboratory, Dr. Huang dissolved penicillin powder and dispensed it into several petri dishes, each inoculated with a different pathogenic bacterium.

These are some of the most difficult strains to treat in clinical settings; even high concentrations of sulfonamides can only barely inhibit their growth.

The team members gathered around, some whispering, "It looks no different from regular anti-inflammatory drugs. Can it really be stronger than sulfonamides?"

"It was given to me by the young lady's friend, so I figured I might as well give it a try."

Dr. Huang didn't say anything, but focused on placing the petri dish into the incubator and setting the time.

When the incubator beeped, he took a deep breath, put on sterile gloves, and carefully removed the petri dish.

At first glance, Dr. Huang froze, and the tweezers in his hand clattered onto the operating table.

In the petri dish, the bacteria that should have been multiplying wildly were now dead in large numbers, with only a few living bacteria remaining. The area covered by the penicillin solution was so clean that not a trace of bacteria could be seen.

In the adjacent control group's sulfonamide culture dish, pathogenic bacteria were still growing tenaciously, creating a stark and glaring contrast.

"This...this is impossible!" the young researcher next to him exclaimed in disbelief.

Dr. Huang, trembling, put on the magnifying glass and peered closely. His eyes behind the lens were bloodshot, and his breathing became rapid: "Test it again! Use the highest concentration of pathogens, repeat the experiment three times!"

The team members were stunned by the result and quickly went about their tasks, reconfiguring the solution and inoculating the bacteria.

Test after test yielded consistent results. In multiple pathogen tests, penicillin demonstrated a devastating inhibitory effect on all tested pathogens. Its inhibition zone diameter was more than five times that of sulfonamides, and its bactericidal speed was astonishingly fast, rendering stubborn pathogens inactive in just ten minutes.

On the screen of the component analyzer, the data curves kept fluctuating before finally settling on a new set of values.

"Dr. Huang, the component analysis results are in!" The researcher in charge of the testing said, his voice trembling as he pointed at the screen, "This is a completely new antibiotic, with a chemical structure entirely different from sulfonamides, and its antibacterial mechanism is also unprecedented!"

Dr. Huang snatched the analysis report, stood up abruptly, and looked around at his equally shocked team members. His voice trembled uncontrollably: "A miracle! This is simply a miracle in medical history! Sulfonamides are nothing compared to it! The effect isn't just dozens of times, it's hundreds, even thousands of times stronger! Those drug-resistant strains are utterly helpless against it!"

"The person who invented this penicillin is a genius! A savior! This thing is about to change the world!" Dr. Huang paced back and forth excitedly.

The lab staff worked tirelessly for a day and a night, and finally, Dr. Huang excitedly dialed Mingjing's number.

"Young Miss! Young Miss Mingjing! You must help me contact the person who invented penicillin! This stuff can change the world! It can save countless lives! If it can be mass-produced, the entire medical field will be revolutionized! I must see him! Immediately! Right now!"

Mingjing was also shocked: "You mean, penicillin is dozens of times more effective than sulfonamides? Does that mean it's more expensive than gold?"

"More than that, if it could be mass-produced, making a fortune every day wouldn't be difficult. I'm not talking about how valuable it is, but that this thing can save countless lives and change the world."

The two were talking at cross purposes; the technician and the capitalist had completely different concerns.

However, Mingjing immediately realized the value of penicillin; it was practically a gold mine.

Mingjing told him to immediately produce an assessment report and send it to her.

Risk and opportunity coexist. This thing is too valuable, allowing the Ming family to accumulate astronomical wealth in a short period of time. It will also attract the covetous eyes of many people, including the Japanese, the Green Gang, Americans, Germans, Soviets, spies from Chongqing, and the 76th Division. They will all flock to it, which may bring the Ming family annihilation.

We must find Chen Qing immediately and discuss the possibility of cooperating in the production of penicillin.

She naturally knew Chen Qing; the two had dealt with each other over the film reel incident.

The evaluation report arrived quickly, and Mingjing finally made up its mind to acquire the penicillin formula.

She dressed up carefully, choosing a cheongsam with embroidered lotus flowers, which not only made her skin look fair but also gave her the dignified and capable demeanor of a businesswoman.

In her thirties, time has left few marks on her; instead, it has cultivated a calm and gentle charm. Her eyebrows and eyes possess just the right amount of brightness, neither ostentatious nor lacking in allure.

Mingjing was confident that she still had some good looks, and this just-right charm was always an invisible advantage when negotiating with men.

She went downstairs and called Mingtai.

"I'm asking you, how exactly do you know Chen Qing?"

Mingtai scratched his head: "Well... a friend recommended him. My friend said he's an exceptionally skilled doctor who can cure any kind of difficult or complicated illness, but he's a gynecologist and only treats women."

Mingjing waved his hand and said, "Never mind all that, let's go. Take me to see him; I want to discuss a big business deal with him."

Mingtai's eyes lit up: "Is it that penicillin? How effective is it? Is it really dozens of times better than sulfonamides?"

"The results were better than we imagined. Oh, don't ask so many questions. Don't ask things you shouldn't ask. Hurry up and drive the car out. Let's go and come back as soon as possible, lest something goes wrong."

"Okay, I'll go get the car." He was happy to be able to do something for the Ming family.