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    中文名称 英文名称 CAS号 化学式
    4,5-二氢-4-[(2-硝基苯基)偶氮]-5-氧代-1-苯基-1H-吡唑-3-羧酸乙酯 ethyl 4-[(2-nitrophenyl)diazenyl]-5-oxo-1-phenyl-4H-pyrazole-3-carboxylate 68213-91-2 C18H15N5O5
    4,5-二氢-4,5-二羟基尿酸 dihydroxyuric acid 67708-22-9 C5H6N4O5
    4,5-二氢-4,5-二硝基-1H-咪唑-2-胺 4,5-Dinitro-4,5-dihydro-1H-imidazol-2-amine 644996-55-4 C3H5N5O4
    4,5-二氢-3H-螺叔丁基[苯并[B][1,4]氧杂氮杂-2,4'-哌啶]-1'-羧酸叔丁酯 tert-butyl 4,5-dihydro-3H-spiro[benzo[b]-[1,4]oxazepine-2,4'-pipeidine]-1'-carboxylate 693789-34-3 C18H26N2O3
    4,5-二氢-3-苯基-2-呋喃酮 3-phenyldihydrofuran-2-one 6836-98-2 C10H10O2
    4,5-二氢-2-[(2,3-二甲基苯氧基)甲基]-1H-咪唑 2-(2,3-dimethyl-phenoxymethyl)-4,5-dihydro-1<i>H</i>-imidazole 67400-54-8 C12H16N2O
    4,5-二氢-2-(甲硫基)-1H-咪唑-1-羧酸甲酯 methyl 2-(methylthio)-4,5-dihydro-1H-imidazole-1-carboxylate 60546-77-2 C6H10N2O2S
    4,5-二氢-1H-咪唑-2-磺酸 4,5-dihydro-1H-imidazole-2-sulfonic acid 64205-92-1 C3H6N2O3S
    4,5-二氢-1-[3-(三氟甲基)苯基]-1H-吡唑-3-胺 3-amino-1-<3-(trifluoromethyl)phenyl>-2-pyrazoline 66000-40-6 C10H10F3N3
    4,5-二氢-1-(4-硝基苯基)-5-氧代-1H-吡唑-3-羧酸 4,5-Dihydro-1-(4-nitrophenyl)-5-oxo-1H-pyrazole-3-carboxylic acid 62084-02-0 C10H7N3O5
    4,5-二氢-1-(2-羟基乙基)-3-(2-羟基-3-磺酸基丙基)-2-十一烷基-1H-咪唑鎓单钠盐 4,5-Dihydro-1-(2-hydroxyethyl)-3-(2-hydroxy-3-sulphonatopropyl)-2-undecyl-1H-imidazolium, monosodium salt 68039-23-6 C19H37N2NaO5S
    4,5-二氢-1-(2-甲基-4-磺基苯基)-5-氧代-1H-吡唑-3-羧酸 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-1-(2-methyl-4-sulfophenyl)-5-oxo- 67939-25-7 C11H10N2O6S
    4,5-二氟-2-溴苯腈 2-bromo-4,5-difluorobenzonitrile 64695-82-5 C7H2BrF2N
    4,5-二氟-1-茚酮 4,5-difluoro-1-indanone 628732-11-6 C9H6F2O
    4,5-二异戊基萘-1-磺酸 Naphthalenesulfonic acid, dipentyl- 61702-94-1 C20H28O3S
    4,5-二异丙基-4H-1,2,4-噻唑-3-硫醇 4,5-diisopropyl-4H-1,2,4-triazole-3-thiol 667437-59-4 C8H15N3S
    4,5-二亚甲基-1,3-二氧戊环-2-酮 4,5-Dimethylen-1,3-dioxolan-2-on 62458-20-2 C5H4O3
    4,5-二乙基吡咯[1,2-a]喹啉 4,5-diethyl-pyrrolo[1,2-a]quinoline 624739-90-8 C16H17N
    4,5-二(羟甲基)-2-苯基-1H-咪唑 2-phenyl-4,5-bis(hydroxymethyl)-imidazole 61698-32-6 C11H12N2O2
    4,5,9,10-四氮杂菲 4,5,9,10-tetra-azaphenanthrene 653-05-4 C10H6N4
    4,5,7-三苯基-1,3-二氢-2-苯并呋喃 4,5,7-triphenyl-1,3-dihydroisobenzofuran 61051-02-3 C26H20O
    4,5,7-三甲基茚满 4,5,7-trimethylindan 6682-06-0 C12H16
    4,5,7-三溴-2-(4,5,7-三溴-3-氧代-1,3-二氢-2H-吲哚-2-亚基)-1,2-二氢-3H-吲哚-3-酮 4,5,7-Tribromo-2-(4,5,7-tribromo-3-oxo-1,3-dihydro-2H-indol-2-yli dene)-1,2-dihydro-3H-indol-3-one 6417-56-7 C16H4Br6N2O2
    4,5,6-三硝基苯-1,2,3-三胺 ar,ar,ar-Trinitrobenzenetriamine 67539-61-1 C6H6N6O6
    4,5,6-三甲基-2(1H)-嘧啶酮 4,5,6-trimethyl-1<i>H</i>-pyrimidin-2-one 65133-47-3 C7H10N2O
    4,5,6-三溴-2-甲基苯酚 4,5,6-tribromo-2-methylphenol 67081-42-9 C7H5Br3O
    4,5,6-三氨基嘧啶硫酸盐 4,5,6-triaminopyrimidine sulfate 68738-86-3 C4H7N5*H2O4S
    4,5,6,8-四苯基-7-氧杂-4,6-二氮杂螺[2.5]辛烷 4,5,6,8-tetraphenyl-7-oxa-4,6-diaza-spiro[2.5]octane 66145-67-3 C29H26N2O
    4,5,6,7-四苯基-1,3-二氢-2-苯并呋喃 1,3-Dihydro-4,5,6,7-tetraphenylisobenzofuran 61051-01-2 C32H24O
    4,5,6,7-四硝基-1,3-二氢苯并咪唑-2-酮 4,5,6,7-tetranitro-2,3-dihydro-1H-benzimidazol-2-one 62353-29-1 C7H2N6O9
    4,5,6,7-四氯-1,3-异苯并呋喃二酮与1,2-乙二醇和1,3-异苯并呋喃二酮聚合物 2-Benzofuran-1,3-dione;ethane-1,2-diol;4,5,6,7-tetrachloro-2-benzofuran-1,3-dione 61630-88-4 C18H10Cl4O8
    4,5,6,7-四氢异恶唑并[5,4-c]吡啶-3(2H)-酮单氢溴酸盐 3-hydroxy-4,5,6,7,-tetrahydroisoxazolo<5,4-c>-pyridinium bromide 65202-63-3 BrH*C6H8N2O2
    4,5,6,7-四氢异吲哚-1-羧酸乙酯 ethyl 4,5,6,7-tetrahydro-2H-isoindole-1-carboxylate 65880-17-3 C11H15NO2
    4,5,6,7-四氢噻吩并[2,3-c]吡啶 4,5,6,7-tetrahydro-thieno[2,3-c]pyridine 62019-71-0 C7H9NS
    4,5,6,7-四氢-苯并[b]噻吩-2-羰酰氯 4,5,6,7-tetrahydrobenzo[b]thiophene-2-carbonyl chloride 65361-26-4 C9H9ClOS
    4,5,6,7-四氢-5-(苯基甲基)-2H-吡唑并[4,3-c]吡啶-3-胺 5-Benzyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-C]pyridin-3-amine 682732-81-6 C13H16N4
    4,5,6,7-四氢-4-氧代-吡唑并[1,5-a]吡嗪-2-羧酸甲酯 4-oxo-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine-2-carboxylic acid methyl ester 604003-25-0 C8H9N3O3
    4,5,6,7-四氢-3H-咪唑并[4,5-C]吡啶二盐酸盐 4,5,6,7-Tetrahydro-3H-imidazo[4,5-c]pyridine dihydrochloride 62002-31-7 C6H11Cl2N3
    4,5,6,7-四氢-2-苯并噻吩-1-羧酸 4,5,6,7-tetrahydrobenzo[c]thiophene-1-carboxylic acid 6435-75-2 C9H10O2S
    4,5,6,7-四氢-2-苯基-2H-异吲哚-1-甲醛2,4-二硝基苯基腙 4,5,6,7-Tetrahydro-2-phenyl-2H-isoindole-1-carboxaldehyde (2,4-dinitrophenyl)hydrazone 61863-05-6 C21H19N5O4
    4,5,6,7-四氢-2-甲基-咪唑并[4,5,1-jk][1,4]苯并二氮杂卓 1-methyl-6,7,8,9-tetrahydro-2,7,9a-triaza-cyclohepta[<i>cd</i>]azulene 66596-62-1 C11H13N3
    4,5,6,7-四氢-2-甲基-咪唑并[1,5,4-ef][1,5]苯并二氮杂卓 1-methyl-6,7,8,9-tetrahydro-2,6,9a-triaza-cyclohepta[<i>cd</i>]azulene 66596-63-2 C11H13N3
    4,5,6,7-四氢-2-甲基-2H-吲唑-5-胺 2-Methyl-4,5,6,7-tetrahydro-2H-indazol-5-ylamine 612820-69-6 C8H13N3
    4,5,6,7-四氢-1H-苯并三唑 4,5,6,7-tetrahydro-2<i>H</i>-benzo[1,2,3]triazole 6789-99-7 C6H9N3
    4,5,6,7-四氢-1H-咪唑并[4,5-c]吡啶 4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine 6882-74-2 C6H9N3
    4,5,6,7-四氢-1H-吲唑-3-甲酸 4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid 6076-13-7 C8H10N2O2
    4,5,6,7-四氢-1H-吲哚-2-羧酸乙酯 ethyl 4,5,6,7-tetrahydro-1H-indole-2-carboxylate 65880-18-4 C11H15NO2
    4,5,6,7-四氢-1-(吡啶-2-基)-1H-吲唑-5-羧酸甲酯 1-pyridin-2-yl-4,5,6,7-tetrahydro-1<i>H</i>-indazole-5-carboxylic acid methyl ester 68587-29-1 C14H15N3O2
    4,5,6,7-四氢-1,3-苯并噻唑-2-基甲胺 1-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)methanamine 651706-15-9 C8H12N2S
    4,5,6,7-四氢-1,3-苯并二硫醇-2-酮 cyclohexano<d>-1,3-dithiole-2-one 698-41-9 C7H8OS2