• 4-(Dimethylamino)-1-(7-ethoxy-4-hydroxy-3,5,9-trioxa-4-phosphapentacos-1-yl)pyridinium hydroxide, inner salt, 4-oxide, (+-)-
• 127614-93-1
• C₃₀H₅₇N₂O₆P
• 0
• .

• 4H-Imidazo[1,5-a][1,4]benzodiazepine-3-carboxylicacid, 8-fluoro-5-[2-(fluoro-18F)ethyl]-5,6-dihydro-6-oxo-, ethyl ester (9CI)
• 143693-57-6
• C16H15 F2 N3 O3
• 0
• .

• 4H-1-Benzopyran-4-one,2-(2,4-dihydroxyphenyl)-2,3-dihydro-3,7-dihydroxy-8-[(2R)-5-hydroxy-5-methyl-2-(1-methylethenyl)hexyl]-5-methoxy-,(2R,3S)-
• 101236-49-1
• C26H32 O8
• 472.5275
• .

• 4H-1-Benzopyran-4-one,5,6-dihydroxy-2-(4-hydroxyphenyl)-7-methoxy-
• 23130-22-5
• C16H12 O6
• 300.2629
• .

• 4-Acridinecarboxamide,N-(2-aminoethyl)-
• 106626-63-5
• C16H15 N3 O
• 265.3098
• .

• 4H-Imidazo[4,5-c][1,8]naphthyridin-4-one,3,5-dihydro-3-[(4-methoxyphenyl)methyl]-5-phenyl-
• 139482-46-5
• C23H18 N4 O2
• 382.4146
• .

• 4H-1,3-Thiazine-2-carboxaldehyde,5,6-dihydro-, oxime, (Z)- (9CI)
• 65439-25-0
• C5H8 N2 O S
• 0
• .

• 4(3H)-Quinazolinone,6,8-dibromo-3-(2-chlorophenyl)-2-[(propylsulfonyl)methyl]-
• 108659-78-5
• C18H15 Br2 Cl N2 O3 S
• 534.6493
• .

• 4(3H)-Pyrimidinethione,2-amino-6-methyl-5-[3-(phenylamino)propyl]-
• 2360-68-1
• C14H18 N4 S
• 274.3845
• .

• 4H-1-Benzopyran-3-aceticacid, 2-[(1E)-1-bromo-2-carboxyethenyl]-5-hydroxy-7-(hydroxymethyl)-4-oxo-, a-methyl ester (9CI)
• 121927-76-2
• C16H13 Br O8
• .

• 4-Thiazolidinone,3-(2-methylphenyl)-2-[(2-methylphenyl)imino]-
• 16240-00-9
• C17H16 N2 O S
• 296.3867
• .

• 4(3H)-Quinazolinone,8-hydroxy-2-methyl-
• 90417-38-2
• C9H8 N2 O2
• 176.17
• .

• 4,7-Methano-1H-indene,1,2,4,5,6,7,8,8-octachloro-3a,4,7,7a-tetrahydro-, (1R,3aS,4S,7R,7aS)-rel-
• 29555-45-1
• C10H4 Cl8
• 0
• .

• 4-(8-Chloro-10,11-dihydrodibenzo(b,f)thiepin-10-yl)-1-piperazinebutanol dimaleate
• 30319-66-5
• C₃₀H₃₅ClN₂O₉S
• 0
• .

• 4H-1,3,4-Thiadiazin-5(6H)-one,2-[1,2,3,6-tetrahydro-1-[2-hydroxy-2-(3-methylphenyl)ethyl]-4-pyridinyl]-,hydrochloride (1:1)
• 151092-54-5
• C17H21 N3 O2 S . Cl H
• 367.8935
• .

• 4H-Furo[3,2-c][1]benzopyran-4-one,2,3-dihydro-2,3,9-trimethyl-3-(4-methyl-3-penten-1-yl)-, (2R,3S)-rel-(-)-
• 101622-88-2
• C20H24 O3
• .

• 4-Thiazolidinone,3,3'-(1,2-ethanediyl)bis[2-(2-furanyl)-, 1,1,1',1'-tetraoxide, (R*,S*)- (9CI)
• 131420-46-7
• C16H16 N2 O8 S2
• 428.4368
• .

• 4H-1,3,5,2,4,6-Dioxazatriphosphorine,dihydro-2,4,6-trihydroxy-, 2,4,6-trioxide
• 21962-83-4
• H4N O8 P3
• .

• 4H-Imidazol-4-one,2-amino-1,5-dihydro-1-methyl-5-propylidene-
• 119290-23-2
• C7H11 N3 O
• 0
• .

• 4-Morpholinepropanol, a-(5-phenyl-3-isoxazolyl)-,hydrochloride (1:1)
• 15127-00-1
• C16H20 N2 O3 . Cl H
• 324.8025
• .

• 4-Thiazolecarboxylicacid, 2-(2-propen-1-ylamino)-,2-[3-(5-nitro-2-furanyl)-2-propen-1-ylidene]hydrazide
• 54657-96-4
• C14H13 N5 O4 S
• 0
• .

• 4,6-Isoquinolinediol,1,2,3,4-tetrahydro-2-(phenylmethyl)-1-(3,4,5-trimethoxyphenyl)-, hydrochloride(1:1)
• 79677-06-8
• C25H27 N O5 . Cl H
• 0
• .

• 4H,11H-Naphtho[2,1-b]pyrano[3,4-e]pyran-1,11(5H)-dione,9-(3,4-dimethoxyphenyl)-4a,6,6a,12,12a,12b-hexahydro-4a,12a-dihydroxy-4,4,6a,12b-tetramethyl-,(4aR,6aR,12aS,12bS)-
• 167114-89-8
• C28H32 O8
• .

• 4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylicacid, 6-(1-hydroxyethyl)-7-oxo-, [5R-[5a,6a(R*)]]- (9CI)
• 91685-69-7
• C8H9 N O4 S
• 0
• .

• 4-Thiazolidinone,3-ethyl-5-[2-[1-[3-(sulfooxy)propyl]-2-pyrrolidinylidene]ethylidene]-2-thioxo-,sodium salt (1:1)
• 34689-87-7
• C14H20 N2 O5 S3 . Na
• 252-155-0
• 414.49583
• .

• 4H-1-Benzopyran-8-carboxamide,2-(4-fluorophenyl)-N-[3-[4-(2-methoxyphenyl)-1-piperazinyl]propyl]-3-methyl-4-oxo-
• 152736-49-7
• C31H32 F N3 O4
• .

• 4-Piperidinecarboxamide,N-(2-hydroxy-1-methylethyl)-1-(1H-indol-3-ylmethyl)-, (S)- (9CI)
• 102395-79-9
• C18H25 N3 O2
• 0
• .

• 4H-1-Benzopyran-4-one,5,6,7-trimethoxy-2-(4-methoxyphenyl)-
• 1168-42-9
• C19H18 O6
• 342.34
• .

• 4(3H)-Quinazolinone,7-chloro-3-(3-methyl-5-isoxazolyl)-2-phenyl-
• 144485-81-4
• C18H12 Cl N3 O2
• 337.7598
• .

• 4,16-Dioxatricyclo[11.2.1.03,5]hexadec-8-en-12-ol,5,9,13-trimethyl-1-(1-methylethyl)-
• 21698-66-8
• C20H34 O3
• 0
• .

• 4H,5H-Pyrano[4,3-b]pyran-4,5-dione,2,3-dihydro-3-hydroxy-2-methyl-7-[(1E)-1-propen-1-yl]-, (2S,3S)-
• 29059-09-4
• C12H12 O5
• 236.2207
• .

• 4(3H)-Pyrimidinone,2-amino-5-[3-(4-aminophenoxy)propyl]-6-phenyl-, hydrochloride (1:2)
• 14937-58-7
• C19H20 N4 O2 . 2 Cl H
• 336.3877
• .

• 4(1H)-Quinazolinone,3-(4-chlorophenyl)-2,3-dihydro-2-thioxo-
• 1028-40-6
• C14H9 Cl N2 O S
• 0
• .

• 4H-1-Benzopyran-4-one,3-(2-amino-4-thiazolyl)-2,6-dimethyl-
• 104819-36-5
• C14H12 N2 O2 S
• 0
• .

• 4H-3,1-Benzothiazin-2-amine,6-chloro-N-ethyl-4-phenyl-
• 16781-39-8
• C16H15 Cl N2 S
• 0
• .

• 4(3H)-Pteridinone,2-amino-5,6,7,8-tetrahydro-5,6-dimethyl-
• 25239-84-3
• C8H13 N5 O
• 0
• .

• 4H-1,3-Benzoxazin-4-one,2,3-dihydro-8-nitro-2-thioxo-
• 23611-69-0
• C8H4 N2 O4 S
• 224.20
• .

• 4a(2H)-Biphenylenol,1,3,4,8b-tetrahydro-, (4bR,8bS)-rel- (9CI)
• 54881-56-0
• C12H14 O
• 0
• .

• 4-Thiazolidinecarboxylicacid, 3-[2-(4-chlorophenoxy)-2-methyl-1-oxopropyl]-
• 64179-54-0
• C14H16 Cl N O4 S
• 0
• .

• 4H-1-Benzopyran-4-one,7-[2-hydroxy-3-[(1-methylethyl)amino]propoxy]-2-(4-methylphenyl)-,hydrochloride (1:1)
• 106287-81-4
• C22H25 N O4 . Cl H
• 0
• .

• 4,5-Pyrenediol,4,5-dihydro-3-nitro-, (4R,5R)-rel-
• 105596-44-9
• C16H11 N O4
• 281.2628
• .

• 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 6-[([1,1'-biphenyl]-2-ylcarbonyl)amino]-3,3-dimethyl-7-oxo-, sodium salt(1:1), (2S,5R,6R)-
• 2289-50-1
• C21H20 N2 O4 S . Na
• 0
• .

• 4H-Pyrido[1,2-a]pyrimidine-3-carboxaldehyde,2-chloro-4-oxo-
• 17481-62-8
• C9H5 Cl N2 O2
• 208.6012
• .

• 4H-1-Benzopyran-4-one,5-(b-D-glucopyranosyloxy)-2-(3-hydroxy-4,5-dimethoxyphenyl)-7-methoxy-
• 221289-30-1
• C24H26 O12
• .

• 4-Acridinecarboxamide,5-chloro-N-[2-(dimethylamino)ethyl]-
• 106626-74-8
• C18H18 Cl N3 O
• 327.808
• .

• 4-Quinolineacetic acid,2-carboxy-5,7-dichloro-1,2,3,4-tetrahydro-, trans- (9CI)
• 132691-83-9
• C12H11 Cl2 N O4
• 0
• .

• 4H-Pyrido[1,2-a]pyrimidine-3-aceticacid, 9-[(4-acetyl-3-hydroxy-2-propylphenoxy)methyl]-4-oxo-
• 112668-63-0
• C22H22 N2 O6
• 410.4199
• .

• 4-Oxazolidinecarboxylicacid, 3-nitroso-
• 95326-10-6
• C4H6 N2 O4
• 0
• .

• 4H-Cyclopenta[a][1,3]dioxolo[4,5-h]pyrrolo[2,1-b][3]benzazepin-1-ol,1,5,6,8,9,14b-hexahydro-2-methoxy-, 1-acetate, (1S,3aR,14bS)-
• 24274-60-0
• C20H23 N O5
• 357.4003
• .

• 4-Quinolinecarboxylicacid, 2-ethyl-3-methyl-
• 74960-58-0
• C13H13 N O2
• 0
• .