Introduction: Synthetic cathinones are the most common group of new psychoactive substances found on the illegal Russian market. 1-(4-Chlorophenyl)-2-methylaminopropan-1-one (4-Chloromethylcathinone. Clephedrone. 4-CMC) is regularly found in urine samples from patients with acute stimulant poisoning and urine samples obtained from drivers suspected by police of driving under the influ... https://fitnessgravesyardes.shop/product-category/mast-cover/