This multi-functional pyrimidine intermediate contains amino, chloro and methyl groups with distinct reactivity, supporting nucleophilic substitution, condensation and cross-coupling reactions to build diverse heterocyclic structures. It is a key building block for developing antitumor, antibacterial and antiviral drugs. The functional groups can be further modified to enhance molecular targeting ability, metabolic stability and therapeutic performance, widely used in pharmaceutical molecular design and process optimization. In agrochemical field, it serves as core raw material for high-efficiency fungicides and herbicides for crop protection. Additionally, it is applied to synthesize biochemical reagents and fine chemical derivatives. With versatile reaction characteristics and stable chemical properties, it is extensively adopted in new drug research, pesticide production and advanced organic synthesis.

This solid substance has slight toxicity and obvious irritant effects. Inhalation of fine dust will irritate respiratory tract and cause cough or throat soreness. All operations must be carried out in well-ventilated areas with dust-proof masks and protective gloves. Direct skin contact may trigger redness, itching and mild inflammation. If the powder enters eyes, it will lead to intense stinging and conjunctival damage. Rinse the affected area thoroughly with plenty of running water for over 15 minutes once accidental contact happens. Thermal decomposition under high temperature will generate toxic chloride gas. Keep the product away from open flame, high heat sources and oxidizing substances. Never store together with food and daily supplies. All waste residues and contaminated containers shall be disposed of in accordance with hazardous waste regulations to prevent personal injury and environmental pollution.