phenolphthalein,burette

对二甲酚酞
酚酞,phenolphthalein
phenolphthalein test paper / strips / kits manufacturer supply
file:phenolphthalein-orange-very-low-ph-3d-balls.png
百科 cas号:77-09-8 分子式: c 20h 14o 4 英文名称:phenolphthalein