单词 | 1-phenyl-3-pyrazolidinone |
释义 | 1-phenyl-3-pyrazolidinone [¦wǝn ¦fen·ǝl ¦thrē ´pī·rǝ·zǝ`lid·ǝn´ōn] ORGANIC CHEMISTRY C9H10N2O A crystalline compound soluble in dilute aqueous solutions of acids and alkalies; melting point is 121°C; used as a high-contrast photographic developer. |
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