The Office of the National Narcotics Control Commission on Sept 22 issued a
public warning to prevent medetomidine and tartaric acid from being diverted
into illegal channels for drug manufacture. The notice specifies the chemicals'
CAS numbers and customs commodity codes and reminds firms and individuals to
follow prior warnings issued in Aug 2019, Nov 2023 and Nov 2025, strengthen
legal compliance and observe domestic and foreign laws when trading or exporting
these substances.