Obychnye khimikaty
2026-07-19
4-метилбензолсульфокислота2-(2-萘基亚метил)酰肼
4-Methylbenzenesulfonic acid 2-(2-naphthalenylmethylene)hydrazide
4-Methylbenzenesulfonic acid 2-(2-naphthalenylmethylene)hydrazide 95%