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    中文名称 英文名称 CAS号 化学式
    4-(6-肼基哒嗪-3-基)吗啉 3-hydrazino-6-morpholino-pyridazine 17259-72-2 C8H13N5O
    4-氟-5-碘-1H-吲哚 4-fluoro-5-iodo-1H-indole 1240113-40-9 C8H5FIN
    4-苯甲酰基苄基）三甲基氯化铵 (p-methyltrimethylammonium chloride)-benzophenone 78697-25-3 C17H20NO*Cl
    -4-氨基-1,2,5-噻二唑-3-羧酸乙酯 Ethyl 4-amino-1,2,5-thiadiazole-3-carboxylate 499999-36-9 C5H7N3O2S
    -4-(三氟甲氧基)苯甲酸乙酯 ethyl 4-(trifluoromethoxy)benzoate 587-18-8 C10H9F3O3
    (±)-4-甲氧基-N-[2-[2-(1-甲基-2-哌啶基)乙基]苯基]苯甲酰胺 encainide 66778-36-7 C22H28N2O2
    (±)-4-甲基-5-苯基-2-恶唑啉酮 (4S)-4-methyl-5-phenyl-1,3-oxazolidin-2-one 16251-45-9 C10H11NO2
    (±)-4-溴苯乙烯环氧化物 (+/-)-2-(4-bromophenyl)oxirane 32017-76-8 C8H7BrO
    (±)-4-氯苯乙烯环氧化物 4-Chlorostyrene oxide 2788-86-5 C8H7ClO
    (±)-4-氨基辛烷 rac-2-aminooctane 693-16-3 C8H19N
    (±)-4-氟苯乙烯环氧化物 4-fluorostyrene oxide 18511-62-1 C8H7FO
    (±)-4'-甲氧基黄烷酮 2-(4-methoxyphenyl)-2,3-dihydro-4H-chromen-4-one 3034-08-0 C16H14O3
    (~49~V)钒 Vanadium-49 14392-01-9 V
    ({[(4-甲基苯基)磺酰基]氨基}乙酰基)氨基]乙酸 tosyl-glycyl-glycine 4703-34-8 C11H14N2O5S
    ({4-氨基-6-[(羟基甲基)氨基]-1,3,5-三嗪-2-基}亚氨基)二甲醇 ({4-amino-6-[(hydroxymethyl)amino]-1,3,5-triazin-2-yl}imino)bismethanol 38228-20-5 C6H12N6O3
    ({4-[(4,6-二氯-1,3-苯并噻唑-2-基)偶氮]苯基}亚氨基)二-2,1-乙二基二乙基二碳酸酯 Ethyl 5-[4-[(4,6-dichlorobenzothiazol-2-YL)azo]phenyl]-9-oxo-2,8,10-trioxa-5-azadodecanoate 77486-75-0 C23H24Cl2N4O6S
    ([4-(氯磺酰基)苯甲酰基]氨基)乙酸 2-{[4-(chlorosulfonyl)phenyl]formamido}acetic acid 155493-93-9 C9H8ClNO5S
    (4→2)-阿扑-16-羟基胆碱-2,13-二烯-15,16-内酯-3- (4->2)-Abeo-16-hydroxycleroda-2,13-dien-15,16-olide-3-al 935293-70-2 C20H28O4
    (4’-甲氧基-联苯-3-基)-乙酸 2-(4’-methoxy[1,1‘-biphenyl]-3-yl)acetic acid 75852-49-2 C15H14O3
    (4’-甲基联苯-4-基)(苯基)甲酮 4-benzoyl-4'-methylbiphenyl 63283-56-7 C20H16O
    (4’-氟联苯-4-基)甲胺 (4'-fluoro-[1,1'-biphenyl]-4-yl)methanamine 776291-03-3 C13H12FN
    (4ξ,5E,7S)-10-氧代-4-甲基-7-异丙基-5-十一碳烯-4-内酯 (7S)-10-Oxo-4-methyl-7-isopropyl-(5E)-undecen-4-olide 57213-51-1 C15H24O3
    (4β,5β)-4,5-环氧孕烷-3,20-二酮 4β,5β-epoxy pregnane-3,20-dione 17597-24-9 C21H30O3
    (4α,5α,8xi,9xi,10xi,13xi,14xi,17β)-17-羟基-4-甲基雄甾烷-3-酮 17β-hydroxy-4α-methyl-5α-androstan-3-one 10147-53-2 C20H32O2
    (4Α,5Α,17Β)-4,5-环氧-3,17-二羟基-4,17-二甲基雄甾-2-烯-2-氰 Epostane 80471-63-2 C22H31NO3
    (4s)-4-(2-萘氧基)-L-脯氨酸甲酯 Methyl (2S,4S)-4-(2-naphthyloxy)-2-pyrrolidinecarboxylate 755707-37-0 C16H17NO3
    (4r)-(9ci)-6-乙基-3,4-二氢-1H-2-苯并硫代吡喃-4-胺,2,2-二氧化物 (4R)-6-Ethyl-3,4-dihydro-1H-isothiochromen-4-amine 2,2-dioxide 676135-55-0 C11H15NO2S
    (4r)-(9ci)-4-(1-甲基乙基)-3-(1,2-丙二烯)-2-噁唑烷酮 (4R)-4-(1-methylethyl)-3-(1,2-propadienyl)-2-Oxazolidinone 357426-83-6 C9H13NO2
    (4e,8e,11e,15e)-十八碳-4,8,11,15-四烯酸 Octadeca-4,8,11,15-tetraenoic acid 2006-01-1 C18H28O2
    (4ci)-5-疏基-6-喹啉羧酸 5-mercapto-quinoline-6-carboxylic acid 873970-05-9 C10H7NO2S
    (4ci)-5-叔丁基-4-异丙基-甲苯-2,3-二胺 4-tert-Butyl-6-methyl-3-(propan-2-yl)benzene-1,2-diamine 854633-87-7 C14H24N2
    (4ci)-5-乙酰氨基-8-喹啉磺酸 5-acetylamino-quinoline-8-sulfonic acid 855765-83-2 C11H10N2O4S
    (4ci)-2,3-二氢-呋喃并[3,4]-p-二噁英-5,7-二羰酰氯 2,3-dihydro-furo[3,4-<i>b</i>][1,4]dioxin-5,7-dicarbonyl chloride 873380-06-4 C8H4Cl2O5
    (4ci)-1-乙酰基-3-三甲基乙酰脲 <i>N</i>-acetyl-<i>N</i>'-pivaloyl-urea 854643-13-3 C8H14N2O3
    (4ci)-1-乙酰基-3-三甲基乙酰脲 <i>N</i>-acetyl-<i>N</i>'-valeryl-urea 854643-08-6 C8H14N2O3
    (4beta,5alpha,12beta,16alpha,20R)-4-乙基-16,20-二羟基-12-((3-羟基-1-氧代戊基)氧基)-4,8-二甲基-D(17alpha)-高孕甾-17-烯-17alpha-羧酸gamma-内酯 Phyllactone A 145613-54-3 C32H50O6
    (4beta)-12,13-环氧-4-羟基-单端孢霉-9-烯-8-酮 Trichothecolone 2199-06-6 C15H20O4
    (4bS,8aS,10R)-4b,5,6,7,8,8a,9,10-八氢-4b,8,8-三甲基-1-(1-甲基乙基)-2,10-菲二醇 7α-hydroxytotarol 6811-52-5 C20H30O2
    (4bS,8aS)-4b,8,8-三甲基-5,6,7,8a,9,10-六氢菲-3-醇 Podocarpa-8,11,13-trien-12-OL 15340-76-8 C17H24O
    (4bS,8R,8aS,14bR)-5,6,7,8,14,14b-六氢-7-甲基-4,8-甲桥苯并呋喃并(2,3-a)吡啶并(4,3-b)咔唑-1,8a(9H)-二醇 Oxymorphindole 111469-88-6 C23H22N2O3
    (4bS,6aS,7S,8aS,9aS,9bR)-2-甲氧基-6a-甲基-4b,6,6a,7,8,8a,9,9b,10,11-十氢-5H-环丙烯并[1,5]环戊二烯并[1,2-a]菲-7-酚 Phenylamino-thioacetic acid S-(1H-benzoimidazol-2-yl) ester 83408-76-8 C15H13N3OS
    (4bS)-反式-8,8-三甲基-4b,5,6,7,8,8a,9,10-八氢-1-异丙基菲-2-醇 trans-totarol 511-15-9 C20H30O
    (4bS)-4balpha,5,6,7,8,9,9aalpha,10-八氢-11-甲基-6beta,9beta-桥亚胺苯并[a]薁-10beta-醇 11-Methyl-4b,5,6,7,8,9,9a,10-octahydro-6,9-epiminobenzo[a]azulen-10-ol 51805-82-4 C15H19NO
    (4bR)-5,6,7,8,9,9abeta-六氢-11-甲基-6alpha,9alpha-桥亚胺苯并[a]薁-10(4bbetaH)-酮 Benz(a)azulen-6,9-imin-10(4bh)-one, 5,6,7,8,9,9a-hexahydro-11-methyl-, (4bR-(4b-alpha,6-beta,9-beta,9a-alpha))- 51868-65-6 C15H17NO
    (4b-氟-5,12-二羟基-4a,6a,8,8-四甲基-2-氧代-2,4a,4b,5,6,6a,9a,10,10a,10b,11,12-十二氢-6bH-萘并[2',1':4,5]茚并[1,2-d][1,3]二氧杂环戊烯-6b-基)(氧代)乙酸 6-Hydroxy-21-oic triamcinolone acetonide 68263-02-5 C24H29FO8
    (4aα，4bβ，6aα，7α，9aβ，9bα，11aβ)-N-(2-氯苯基)-2,4a，4b，5,6,6a，7,8,9,9a，9b，10,11，11a-十四氢-1,4,6a-三甲基-2-氧代-1H-茚并[5,4-f]喹啉-7-羧酰胺 (1S,3aS,3bS,5aR,9aR,9bS,11aS)-N-(2-chlorophenyl)-6,9a,11a-trimethyl-7-oxo-2,3,3a,3b,4,5,5a,9b,10,11-decahydro-1H-indeno[5,4-f]quinoline-1-carboxamide 188589-66-4 C26H33ClN2O2
    (4aα,7α,8aβ)-3,4,4a,7,8,8a-六氢-3,3,6,7-四甲基-1H-2-苯并吡喃 H-Tyr-Gly-Gly-(4-Br)Phe-Leu-OH 89705-56-6 C28H36BrN5O7
    (4as-顺式)-(9ci)-八氢-1H-环戊并[b]吡啶 cis-Octahydro-1-pyrindin 736107-60-1 C8H15N
    (4ar,7ar)-(9ci)-八氢-1H-环戊并[b]吡啶 (4aR,7aR)-octahydro-1H-cyclopenta[b]pyridine 725680-86-4 C8H15N
    (4alpha-甲酰基-8-羟基-1,1-二甲基-5,6-二氧代-7-丙-2-基-2,3,4,9,10,10alpha-六氢菲-9-基)乙酸酯 Podocarpa-8, 7alpha,12-dihydroxy-13-isopropyl-11,14-dioxo-, 7-acetate 32764-46-8 C22H28O6