4开头化工名词
		
		
		
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	      	4H-1-Benzothiopyran-4-one,3-(chloromethyl)-, 1,1-dioxide
	        3-(氯甲基)-1,1-二氧代苯并噻喃-4-酮
	      
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	      	4(3H)-Quinazolinone,2-hydrazinyl-3-methyl-
	        2-肼基-3-甲基喹唑啉-4(3h)-酮
	      
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	      	4H-1-Benzopyran-4-one,2-(2,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-8-[(2R)-5-methyl-2-(1-methyle
	        槐黄烷酮 G
	      
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	      	4H-1-Benzopyran-4-one,5,7-dihydroxy-3-(3-hydroxy-4-methoxyphenyl)-
	        红车轴草素
	      
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	      	4-Pyrimidinecarboxylicacid, 1,2-dihydro-2-oxo-
	        2-氧-3H-嘧啶-4-羧酸
	      
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	      	4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-5-hydroxy-3,6,7-trimethoxy-
	        CHRYSOSPLENOL D
	      
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	      	4H-1-Benzopyran-4-one,8-[2-(diethylamino)ethyl]-2,3-dihydro-5,7-dihydroxy-2-phenyl-, (S)- (9CI)
	        D-苏-五酸,2,3-二脱氧-3-(1-甲基乙基)-,γ-内酯 (9CI)
	      
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	      	4-Cyclohexene-1,2-dicarboxylicacid, 1-[5-hydroxy-3-(hydroxymethyl)pentyl] ester
	        6-({[5-羟基-3-(羟基甲基)戊基]氧基}羰基)-3-环己烯-1-羧酸
	      
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	      	4,4'-Bipiperidine,1,1'-bis(2-chloroethyl)-
	        1,1\'-二(2-氯乙基)-4,4\'-联哌啶
	      
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	      	4-Morpholineethanol,4-benzenecarbothioate, hydrochloride (1:1)
	        O-(2-吗啉-4-鎓-4-基乙基)苯硫代甲酸酯氯化物
	      
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	      	4H-1-Benzopyran-4-one,3,5-dihydroxy-2-(4-hydroxyphenyl)-6,7-dimethoxy-
	        3,4,5-三羟基-6,7-二甲氧基黄酮
	      
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	      	4-Piperidinemethanol, a-methyl-
	        1-哌啶-4-乙醇
	      
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	      	4(3H)-Pyrimidinone,5-hexyl-6-methyl-
	        1-[2-氨基-1-[4-(三氟甲基)苯基]乙基]吡咯烷-3-羧酸
	      
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	      	4-Pyridineacetic acid,2-phenyl-
	        2-(2-苯基吡啶-4-基)乙酸
	      
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	      	4H-Cyclopenta[b]thiophene-2-carboxylicacid,3-[3-[[2-(3,4-dimethoxyphenyl)ethyl]amino]-2-hydroxypropox
	        6-[3-[2-(3,4-二甲氧基苯基)乙基氨基]-2-羟基-丙氧基]-8-硫杂双环[3.3.0]辛-6,9-二烯-7-羧酸盐酸盐
	      
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	      	4H-Imidazo[4,5-c]pyridin-4-one,6-amino-1,5-dihydro-1-b-D-ribofuranosyl-
	        3-去氮杂鸟苷
	      
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	      	4-Pentenoic acid,5-iodo-3,3-dimethyl-, 2,3,5,6-tetrafluorophenyl ester
	        2,3,5,6-四氟苯基-3,3-二甲基-5-碘-4-戊烯酸酯
	      
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	      	4-Piperidinol,1,2,5-trimethyl-4-phenyl-5-(1-piperidinylmethyl)-, 4-acetate, hydrochloride(1:2)
	        9H-咔唑-3-丙酸,b-氨基-9-乙基-
	      
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	      	4H-Pyrrolo[3,2-c]pyridin-4-one,6-amino-1,5-dihydro-
	        6-氨基-1H-吡咯并[3,2-c]吡啶-4-醇
	      
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	      	4H-1-Benzopyran-4-one,7-[(2-O-D-apio-b-D-furanosyl-b-D-glucopyranosyl)oxy]-2,3-dihydro-5-hydroxy-2-(4
	        槲寄生新甙III
	      
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	      	4(1H)-Pyridinone,2,3-dihydro-1-(1-phenylcyclohexyl)-
	        1-(1-苯基环己基)-2,3-二氢-4-吡啶酮
	      
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	      	4a,10a-Epoxy-1H-naphtho[2,3-c]pyran-3-aceticacid, 3,4,5,10-tetrahydro-9-hydroxy-1-methyl-5,10-dioxo-,
	        向日葵油, 聚合 异酞酸和三羟甲基丙烷
	      
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	      	4-Chrysenol
	        4-羟基屈
	      
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	      	4-(2-(Diethylamino)ethoxy)acetophenone
	        1-{4-[2-(二乙胺基)乙氧基]苯基}乙酮
	      
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	      	4H-Imidazol-4-one,1,1'-(iminodi-2,1-ethanediyl)bis[2-amino-1,5-dihydro- (9CI)
	        1,1\'-(亚氨基二乙烷-2,1-二基)二[2-氨基-1,5-二氢-4H-咪唑-4-酮]
	      
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	      	4-Piperidinol,4-phenyl-1-(2-phenylethyl)-
	        1-苯乙基-4-苯基-4-哌啶醇
	      
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	      	4H-1,3,2-Oxazaphosphorin-4-one,2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide
	        4-氧代环磷酰胺
	      
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	      	4H-Indol-4-one,3-ethyl-1,5,6,7-tetrahydro-2-methyl-5-(1-piperidinylmethyl)-, hydrochloride(1:1)
	        CAS号:22770-59-8
	      
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	      	4-Piperidinecarboxylicacid, 3-oxo-1-(phenylmethyl)-, ethyl ester
	        1-苄基-3-氧杂-4-哌啶甲酸乙酯
	      
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	      	4,6:9,12:21,24-Trietheno-3H-pyrido[3',2':14,15][1,11]dioxacycloeicosino[2,3,4-ij]isoquinoline-5,19-di
	        (R)-2,8,13,13a,14,15,16,25-八氢-18,30-二甲氧基-14-甲基-4,6:9,12:21,24-三乙烯桥-3H-吡啶并(3\',2\':14,15)(1,11)二氧杂环二十烷并(2,3,4- ij)异喹啉-5,19-二醇
	      
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	      	4H-1-Benzopyran-4-one,5,7-dihydroxy-
	        5,7-二羟基色原酮
	      
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	      	4H-1-Benzopyran-4-one,2-(dimethylamino)-8-phenyl-
	        2-(二甲氨基)-8-苯基-4H-色烯-4-酮
	      
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	      	4H-1-Benzopyran-4-one,5-hydroxy-6-methoxy-3-(4-methoxyphenyl)-7-[(6-O-b-D-xylopyranosyl-b-D-glucopyra
	        葛花苷
	      
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	      	4H-1,3,5-Dithiazine,2,4,6-triethyldihydro-
	        二氢-2,4,6-三乙基-1,3,5-[4H]-二噻嗪
	      
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	      	4H-Pyrrolo[3,2,1-ij]quinolin-4-one,9-methoxy-2,6-dimethyl-
	        2,6-二甲基-9-甲氧基-4H-吡咯并(3,2,1-ij)喹啉-4-酮
	      
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	      	4-Hydroxyisoleucine
	        葫芦巴提取物
	      
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	      	4-Piperidinecarboxaldehyde,1-[2-(4-morpholinyl)ethyl]-4-phenyl-, hydrochloride (1:2)
	        1-(2-吗啉基乙基)-4-苯基-4-哌啶甲醛二盐酸盐
	      
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	      	4-Piperidinecarboxylicacid, 1-(3-oxo-3-phenylpropyl)-4-phenyl-, ethyl ester
	        2-嘧啶胺,4-(5-溴-2-噻嗯基)-6-甲基-
	      
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	      	4-Piperidinol,5-amino-2-(6E,8E)-6,8-tridecadien-1-yl-, (2R,4R,5S)-
	        (2R,4R,5S)-5-氨基-2-[(6E,8E)-十三碳-6,8-二烯-1-基]哌啶-4-醇
	      
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	      	4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 6-chloro-3,3-dimethyl-7-oxo-, 4-oxide, [2S-(2a,5a
	        4-氨基-2,4\'-二氯二苯甲酮
	      
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	      	4,4(5H)-Oxazoledimethanol,2-heptadecyl-
	        2-十七烷基-2-噁吖啉-4,4-二甲醇
	      
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	      	4-Benzofuranacetamide,N-methyl-N-[7-(1-pyrrolidinyl)-1-oxaspiro[4.5]dec-8-yl]-
	        [(6aR,10aS)-1-羟基-6,6-二甲基-3-戊基-6a,7,8,10a-四氢-6H-苯并[c]色烯-10-基]甲基十六烷酸酯
	      
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	      	4-Thiazolidinone,3-[(dimethylamino)methyl]-2-(phenylimino)-5-(3-phenyl-2-propen-1-ylidene)-
	        吡唑并[1,5-a]吡啶-2-甲胺
	      
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	      	4-Piperidinol,3-methyl-2-[(1E,3E)-4-phenyl-1,3-butadien-1-yl]-, hydrochloride (1:1),(2R,3R,4S)-
	        CAS号:26834-31-1
	      
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	      	4-Pyrimidinecarboxaldehyde,6-amino-2-methyl-
	        6-氨基-2-甲基-4-嘧啶甲醛
	      
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	      	4-Thiazolidinone,3-[[(4-nitrophenyl)amino]methyl]-5-(3-phenyl-2-propen-1-ylidene)-2-thioxo-
	        (5E)-3-{[(4-硝基苯基)氨基]甲基}-5-[(2E)-3-苯基-2-丙烯-1-亚基]-2-硫代-1,3-噻唑烷-4-酮
	      
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	      	4-Imidazolidinone,3-methyl-5-(2-methylpropyl)-2-thioxo-
	        Mth-dl-亮氨酸
	      
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	      	4(3H)-Pteridinone,2-amino-5,6,7,8-tetrahydro-6-(2-hydroxy-1-oxopropyl)-
	        2-氨基-6-(2-羟基丙酰基)-5,6,7,8-四氢-1H-蝶啶-4-酮
	      
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	      	4H,7H-Furo[2',3',4':4,5]naphtho[2,1-c]pyran-4,7-dione,9-(3-furanyl)dodecahydro-3a-hydroxy-10a,10c-dim
	        CAS号:144860-29-7
	      
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	      	4H-Imidazo[1,5-a][1,4]benzodiazepine-3-carboxylicacid, 8-chloro-5,6-dihydro-5-methyl-6-oxo-, 1,1-dime
	        叔丁基8-氯-5-甲基-6-氧代-4H-咪唑并[1,5-a][1,4]苯并二氮杂卓-3-羧酸酯