• 4H-Pyrimido[6,1-a]isoquinolin-4-one,2,3,6,7-tetrahydro-9,10-dimethoxy-7-methyl-3-propyl-2-[(2,4,6-trimethylphenyl)imino]-,hydrochloride (1:1)
• 108445-58-5
• C27H33 N3 O3 . Cl H
• 484.0302
• .

• 4H-1-Benzopyran-4-one,2,3-dihydro-7-hydroxy-3-[4-hydroxy-2-methoxy-5-(3-methyl-2-butenyl)phenyl]-(9CI)
• 157382-30-4
• C21H22 O5
• .

• 4-Thiazolecarboxylicacid,2-[10,11,17,18,23,24,25,26,27,28-decahydro-14-methyl-11-[2-(methylamino)-2-oxoethyl]-18,28-bis(1-methylethyl)-9,16,23,26-tetraoxo-9H,16H-8,5:15,12:22,19:32,29:36,33-pentanitrilo-5H,29H,33H-pyrido[3,2-a1][1,11,18,25,31,4,7,14,21]pentathiatetraazacyclotetratriacontin-2-yl]-,[(3S,8aS)-octahydro-1,4-dioxopyrrolo[1,2-a]pyrazin-3-yl]methyl ester
• 156620-47-2
• C50H50 N14 O9 S6
• 0
• .

• 4H-1-Benzopyran-4-one,3,7-bis(acetyloxy)-2,3-dihydro-5-hydroxy-2-phenyl-, (2R,3R)-
• 103553-98-6
• C19H16 O7
• .

• 4-Morpholineacetamide,N-(2-iodophenyl)-, hydrochloride (1:1)
• 143579-18-4
• C12H15 I N2 O2 . Cl H
• 0
• .

• 4-Morpholinebutanamide,N-(2,4,6-trimethylphenyl)-, hydrochloride (1:1)
• 121513-34-6
• C17H26 N2 O2 . Cl H
• 326.8615
• .

• 4,6(1H,5H)-Pyrimidinedione,dihydro-1-phenyl-5-[(phenylamino)methyl]-3-(4-phenyl-2-thiazolyl)-2-thioxo-
• 139356-72-2
• C26H20 N4 O2 S2
• 484.5926
• .

• 4-Pyrimidinecarboxaldehyde,1,2,3,6-tetrahydro-2,6-dioxo-, 4-[2-(4-nitrophenyl)hydrazone]
• 14161-04-7
• C11H9 N5 O4
• 275.2203
• .

• 4H-1-Benzopyran-4-one,7-hydroxy-8-[2-O-[(2Z)-3-(4-hydroxyphenyl)-1-oxo-2-propen-1-yl]-b-D-glucopyranosyl]-5-methyl-2-(2-oxopropyl)-
• 115940-94-8
• C28H28 O11
• .

• 4-Thiazolecarboxamide,2-[(4-amino-1-oxobutyl)amino]-N-[4-[[(3-aminopropyl)amino]carbonyl]-5-methyl-2-thiazolyl]-5-methyl-,hydrobromide (1:2)
• 135999-99-4
• C17H25 N7 O3 S2 . 2 Br H
• .

• 4-Morpholinecarbodithioicacid, potassium salt (1:1)
• 16022-65-4
• C5H9 N O S2 . K
• 201.3514
• .

• 4H-1-Benzopyran-4-one,2,3-dihydro-3,3-dihydroxy-2,7-dimethoxy-2-phenyl-
• 1808-04-4
• C17H16 O6
• 316.3053
• .

• 4H-1-Benzopyran-4-one,5,7-dihydroxy-2-[8-(2-hydroxy-3-methyl-3-buten-1-yl)-2,2-dimethyl-2H-1-benzopyran-6-yl]-,(-)-
• 174391-72-1
• C25H24 O6
• .

• 4H-Thieno[2',3':4,5]pyrimido[2,1-b]benzothiazole-2-carboxylicacid, 3-methyl-4-oxo-, ethyl ester
• 159852-69-4
• C16H12 N2 O3 S2
• 344.4081
• .

• 4,7-Dichloroquinolinium tribromide
• 12365-92-3
• C₉H₆Br₃Cl₂N
• 235-612-9
• 438.76864
• .

• 4H-1,3-Thiazino[5,6-b]quinoxalin-4-one,2-[(4-chlorophenyl)amino]-
• 154371-17-2
• C16H9 Cl N4 O S
• 340.7869
• .

• 4H-1,3-Benzoxazin-4-one,2,3-dihydro-2-[4-(trifluoromethyl)phenyl]-3-(3,4,5-trimethoxybenzoyl)-
• 103952-83-6
• C25H20 F3 N O6
• 399.36255
• .

• 4(3H)-Pyrimidinone,6-hydroxy-2-(hydroxymethyl)-5-methyl-
• 1850-97-1
• C6H8 N2 O3
• 156.1393
• .

• 4,6(1H,5H)-Pyrimidinedione,5-[2-(dimethylamino)ethyl]dihydro-5-(3-methoxyphenyl)-2-thioxo-, hydrochloride(1:1)
• 1231-18-1
• C15H19 N3 O3 S . Cl H
• 357.8556
• .

• 4(3H)-Pyrimidinone,5-[(2-hydroxyphenyl)methyl]-2-methyl-6-phenyl-
• 14304-66-6
• C18H16 N2 O2
• 292.3318
• .

• 4H-Pyrido[4',3':4,5]thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-9(8H)-carbothioamide,6-(2-chlorophenyl)-7,10-dihydro-1-methyl-N-(1H-pyrrol-2-ylsulfonyl)-
• 132418-62-3
• C23H20 Cl N7 O2 S3
• 558.0986
• .

• 4,8-Dioxabicyclo[5.1.0]octane,2-(bromomethyl)-5-[(1R,3Z)-1-chloro-3-hexen-5-ynyl]-3-ethyl-, (1R,2R,3S,5R,7S)-(9CI)
• 143120-42-7
• C15H20 Br Cl O2
• .

• 4-Imidazolidinecarboxamide,N-hydroxy-1-methyl-2,5-dioxo-3-phenyl-
• 135249-38-6
• C11H11 N3 O4
• .

• 4H-1-Benzopyran-4-one,2,3-dihydro-7-hydroxy-3-(4-hydroxyphenyl)-
• 17238-05-0
• C15H12 O4
• 0
• .

• 4H-1,3-Benzodioxin,8-(chloromethyl)-6-fluoro-
• 131728-94-4
• C9H8 Cl F O2
• 202.61
• .

• 4H-1-Benzopyran-4-one,5,6,7,8-tetrahydro-5,6,7,8-tetrahydroxy-2-(2-phenylethyl)-, (5S,6R,7S,8R)-
• 104060-61-9
• C17H18 O6
• .

• 4-Dibenzofurancarboxamide,N-[2-(dimethylamino)ethyl]-, hydrochloride (1:1)
• 112022-29-4
• C17H18 N2 O2 . Cl H
• 318.798
• .

• 4H,9H,10H-Furo[3',2':4,5]furo[2,3-h]-1-benzopyran-4-one,7a,10a-dihydro-10-hydroxy-9,9-dimethyl-2-phenyl-, (7aS,10S,10aR)-
• 102916-89-2
• C21H18 O5
• .

• 4,5-Pyrimidinediamine,N4-(phenylmethyl)-
• 16008-42-7
• C11H12 N4
• 200.2398
• .

• 4H-1-Benzopyran-4-one,5,7-dihydroxy-8-[5-hydroxy-5-methyl-2-(1-methylethenyl)-3-hexenyl]- (9CI)
• 152464-79-4
• C19H22 O5
• .

• 4H-1-Benzopyran-4-one,3-[5-[(2E)-3,7-dimethyl-2,6-octadien-1-yl]-2,4-dihydroxyphenyl]-2,3-dihydro-7-hydroxy-,(-)-
• 163136-00-3
• C25H28 O5
• .

• 4H-[1,3]Dioxolo[4,5-h]pyrimido[1,6-d][1,4]benzoxazepin-4-one,2,3,6,7-tetrahydro-3,6-dimethyl-2-[(2,4,6-trimethylphenyl)imino]-,hydrochloride (1:1)
• 108446-05-5
• C24H25 N3 O4 . Cl H
• 455.9339
• .

• 4-Morpholineacetamide,N-(1,1,3-trimethylbutyl)-, hydrochloride (1:1)
• 108924-58-9
• C13H26 N2 O2 . Cl H
• 278.8187
• .

• 4a,14a-Epoxy-4,14-[3]hexene[1,5]diynonaphtho[2,3-c]phenanthridine-2-carboxylicacid, 1,4,7,12,13,14-hexahydro-6-hydroxy-3-methoxy-1-methyl-7,12-dioxo-, methylester, (1S,4R,4aR,14S,14aS,18Z)- (9CI)
• 165254-65-9
• C31H21 N O7
• .

• 4-Pyridinol,2-[[2-(dimethylamino)ethyl](2-thienylmethyl)amino]-
• 111398-43-7
• C14H19 N3 O S
• 277.3852
• .

• 4-Thiazolidinone,3,5-dimethyl-2-(3-pyridinyl)-, monohydrochloride, (2R,5R)-rel- (9CI)
• 172430-59-0
• C10H12 N2 O S . Cl H
• .

• 4H-Quinolizine-1-carboxylicacid, 3-cyano-4-imino-2-(1-methylethyl)-, ethyl ester
• 128203-77-0
• C16H17 N3 O2
• .

• 4,5-Isobenzofurandiol,1,3-dihydro-6-methoxy-3-methyl-, (3S)-
• 15817-76-2
• C10H12 O4
• 0
• .

• 4(3H)-Pyrimidinone,2-amino-5-fluoro-6-methyl-
• 1597-35-9
• C5H6 F N3 O
• 0
• .

• 4(3H)-Pyrimidinone,6-amino-3-b-D-ribofuranosyl-
• 18645-81-3
• C9H13 N3 O5
• 243.2166
• .

• 4H-Furo[2,3-h]-1-benzopyran-4-one,2-(3,4-dihydro-3,4,8-trihydroxy-2,2-dimethyl-2H-1-benzopyran-6-yl)-8,9-dihydro-5-hydroxy-8-(1-methylethenyl)-(9CI)
• 157998-97-5
• C25H24 O8
• .

• 4H-[1]Benzothieno[3,2-f]pyrrolo[1,2-a][1,4]diazepine,5,6,7,8,9,10-hexahydro-4-(4-methoxyphenyl)-
• 137052-81-4
• C21H22 N2 O S
• 350.4772
• .

• 4H-Pyrido[4',3':4,5]thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-9(8H)-carboxamide,6-(2-chlorophenyl)-7,10-dihydro-1-methyl-N-(1-methylethyl)-
• 132418-31-6
• C22H23 Cl N6 O S
• 454.9756
• .

• 4H-Cyclopenta[2',3']cyclopropa[1',2':5,6]benzo[1,2-b]furan-2,6(3H,5H)-dione,hexahydro-3,5a,5b-trimethyl-, (3S,3aS,5aS,5bR,8aR,8bR)-
• 17956-14-8
• C15H20 O3
• .

• 4(3H)-Quinazolinone,6,8-dibromo-3-[5-[[2-hydroxy-3-[(2-methylphenyl)amino]propyl]thio]-1,3,4-thiadiazol-2-yl]-2-methyl-
• 135575-61-0
• C21H19 Br2 N5 O2 S2
• 597.3459
• .

• 4-Thiazoleacetic acid,2-(2-chlorophenyl)-
• 17969-25-4
• C11H8 Cl N O2 S
• 0
• .

• 4,12,23,27-Hexatetracontatetraene-1,18,21,45-tetrayne-3,20-diol,(3S,4E,12Z,20S,23E,27Z)- (9CI)
• 124739-45-3
• C46H70 O2
• .

• 4H-[1]Benzothieno[3,2-f]pyrrolo[1,2-a][1,4]diazepine,4-(2-chlorophenyl)-5,6,7,8,9,10-hexahydro-
• 126684-58-0
• C20H19 Cl N2 S
• 354.8963
• .

• 4,7,9,11,13,16,19-Docosaheptaenoicacid, (4Z,7Z,9E,11E,13Z,16Z,19Z)-
• 167228-00-4
• C22H30 O2
• .

• 4(2H)-Benzofuranone,3,5-dihydro-6-hydroxy-2-(1-hydroxy-1-methylethyl)-5,5-bis(3-methyl-2-butenyl)-7-(2-methyl-1-oxopropyl)-(9CI)
• 18944-21-3
• C25H36 O5
• 0
• .