in china 16595-80-5 Intermediate levamisole hydrochloride for sale

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in china 16595-80-5 Intermediate levamisole hydrochloride for sale

In recent years, the incidence of malignant tumors in China has increased year by year, chemotherapy is still the main means of treating malignant tumors. Chemotherapy can lead to impaired immune function in the vast majority of patients, leading to serious infections and other complications. Therefore, it is important to develop immuno-enhancing drugs. In addition to being often used as an insect repellent, leprosy hydrochloric acid also has an immunomodulation effect, which can effectively improve the immune function of patients.

The performance of rubber products is mainly determined by the structure of rubber molecular chain network, which depends on the rubber variety and its vulcanization promotion system. Among them, vulcanization promoter plays an important role in the rubber vulcanization promotion system. LH hydrochloric acid (LH) is a common medical drug, the molecule contains "-N-L-S-" group, similar to the rubber vulcanization promoter group, if used as a vulcanization promoter, in the vulcanization process will not release carcinogenic nitrosamine, belongs to the category of safe amine; Experiments show that LH can promote SBR vulcanization, but the effect is not ideal when used directly. On the other hand, rare earth elements have a very unique 4f electron layer structure, large atomic torque and strong spin-and-sheen properties, with unique physical and chemical properties. From the point of view of hard acid and alkali, rare earth elements belong to the category of hard acid, and therefore tend to be related to the atomic production of hard alkali mates, such as Re-O key, Re-N key and so on. According to research, rare earth elements can be combined with vulcanization promoters to improve their vulcanization performance.