What is the batch number of petroleum in tammo n-hexane in 2022?

L535244. According to the inquiry of official website, the State Administration of Medical Supplies, it is known that the batch number of dilution characteristic value and uncertainty of petroleum in Tamo n-hexane in 2022 is L5352441001Z. The products of Tan Mo Quality Control Standard Material Center cover more than 500,000 kinds of pure products, single solution standards, mixed standards and matrix quality control samples, covering many fields such as environment, food, occupational health, medicines and consumer goods.