Pharmaceutical buyers usually start with CAS number, purity, quantity and target delivery time. For 2026 sourcing, pyridine, pyrimidine and imidazole series remain important because they appear across R&D, pilot and commercial procurement lists.
Priority product types
- 2-Aminopyridine, 3-Aminopyridine and 4-Aminopyridine
- 4,6-Dichloropyrimidine and related pyrimidines
- Imidazole, Benzimidazole and 2-Methylimidazole
- Melatonin, Tryptophol and other advanced intermediates
What buyers should send
Send CAS number, target specification, quantity, destination country and document requirements. This helps suppliers reply with realistic MOQ, lead time and COA/SDS support.