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  Indian J Med Microbiol
 

Figure 2: Structure of matrine (CAS number: 519-02-8). The red represents the oxygen atom. The blue represents the nitrogen atom. The gray represents the hydrogen atom. The rest of them were carbon skeleton

Figure 2: Structure of matrine (CAS number: 519-02-8). The red represents the oxygen atom. The blue represents the nitrogen atom. The gray represents the hydrogen atom. The rest of them were carbon skeleton