吩嗪一种黄色晶体状化合物，C6H4N2C 6h4，用于染料制造。
A yellow crystalline compound, C6H4N2C6H4, used in the manufacture of dyes.
槲皮苷，栎皮酮一种黄色粉末状的晶体化合物c5h 15o2 (oh) 5，人工合成或以糖苷存在于许多植物的果皮及树皮中，在医药中用来治疗不正常的毛细血管脆弱。
A yellow, powdered crystalline compound, C5H15O2 (OH) 5, synthesized or occurring as a glycoside in the rind and bark of numerous plants, and used medicinally to treat abnormal capillary fragility.
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