短语词组短語Pyrocatechol Violet sodium salt 兒茶酚紫鈉鹽pyrocatechol violet pv 鄰苯二酚紫de sulfonated pyrocatechol violet 去磺化鄰苯二酚紫Pyrocatechol violet -PV 鄰苯二酚紫de -sulfonated pyrocatechol violet 去磺化鄰苯二酚紫 返回 pyrocatechol violet