• 4H-Anthra[1,2-b]pyran-4,7,12-trione,11-hydroxy-2-[2-hydroxy-1-oxiranyl-1-[[2,3,6-trideoxy-3-(dimethylamino)-b-L-arabino-hexopyranosyl]oxy]ethyl]-5-methyl-(9CI)
• 121245-06-5
• C30H31 N O10
• 565.5678
• .

• 4-Morpholineethanamine,N-[(4-methoxyphenyl)methyl]-N-(phenylmethyl)-, hydrochloride (1:2)
• 102043-51-6
• C21H28 N2 O2 . 2 Cl H
• 413.3811
• .

• 4H-Pyrido[1,2-a]pyrimidin-4-one,3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-
• 147687-18-1
• C23H27 F N4 O3
• 426.4839
• .

• 4(5H)-Oxazolone,2-amino-5-[1-bromo-2-(4-methoxyphenyl)-2-oxoethylidene]-
• 155717-86-5
• C12H9 Br N2 O4
• 0
• .

• 4,6-Pteridinediamine
• 19167-60-3
• C6H6 N6
• 0
• .

• 4,7,9,11-Octadecatetraenedioicacid, 13-[[2-(acetylamino)-2-carboxyethyl]thio]-14-hydroxy-,[13R-[4Z,7Z,9E,11E,13R*(R*),14S*]]- (9CI)
• 114115-51-4
• C23H33 N O8 S
• 0
• .

• 4-Piperidinecarboxamide,N,N-dimethyl-
• 1903-68-0
• C8H16 N2 O
• 0
• .

• 4-Quinolinamine,N-hydroxy-6-nitro-, 1-oxide
• 13442-15-4
• C9H7 N3 O4
• 221.19
• .

• 4H-1-Benzopyran-4-one,2-(3,4-dimethoxyphenyl)-3,5,7-trimethoxy-
• 1247-97-8
• C20H20 O7
• 372.3686
• .

• 4H-Pyrimido[6,1-a]isoquinolin-4-one,6-ethyl-6,7-dihydro-9,10-dimethoxy-2-[(2,4,6-trimethylphenyl)amino]-,monohydrochloride, (R)- (9CI)
• 108445-43-8
• C25H29 N3 O3 . Cl H
• 455.977
• .

• 4H-Imidazol-4-one,3,5-dihydro-3-phenyl-2-[(2,3,4,6-tetra-O-acetyl-b-D-glucopyranosyl)thio]-5-(2-thienylmethylene)-
• 151731-16-7
• C28H28 N2 O10 S2
• 0
• .

• 4,6(1H,5H)-Pyrimidinedione,1-(2,3-dichlorophenyl)-5-[(4-fluorophenyl)methylene]dihydro-3-[4-(4-morpholinyl)phenyl]-2-thioxo-
• 121608-30-8
• C27H20 Cl2 F N3 O3 S
• 0
• .

• 4,12,23,27,43-Hexatetracontapentaene-1,18,21,45-tetrayne-3,20-diol,(3S,4E,12Z,20S,23E,27Z,43Z)-
• 124764-12-1
• C46H68 O2
• .

• 4(1H)-Quinazolinone,2,3-dihydro-2-methyl-3-phenyl-1-[2-(1-piperidinyl)acetyl]-, hydrochloride (1:1)
• 16711-39-0
• C22H25 N3 O2 . Cl H
• 417.929
• .

• 4-Benzofuranacetamide,N-methyl-N-[7-(1-pyrrolidinyl)-1-oxaspiro[4.5]dec-8-yl]-
• 107431-28-7
• C24H32 N2 O3
• 0
• .

• 4(3H)-Quinazolinone,2-methyl-3-[[phenyl(2-phenyldiazenyl)methylene]amino]-
• 110605-01-1
• C22H17 N5 O
• 367.4033
• .

• 4-Pentynoic acid,5-[5-(4-carboxybutylidene)hexahydro-2-hydroxy-1-(3-hydroxy-4-methyl-1-octen-6-ynyl)-3a(1H)-pentalenyl]-(9CI)
• 120939-59-5
• C27H36 O6
• .

• 4H-Pyrimido[6,1-a]isoquinolin-4-one,2,3,6,7-tetrahydro-9,10-dimethoxy-3,6,7-trimethyl-2-[(2,4,6-trimethylphenyl)imino]-,monohydrochloride, (6R-cis)- (9CI)
• 108589-77-1
• C26H31 N3 O3 . Cl H
• 470.0036
• .

• 4H-1-Benzopyran-4-one,6-(1-acetyl-4,5-dihydro-5-phenyl-1H-pyrazol-3-yl)-2-phenyl-
• 154185-84-9
• C26H20 N2 O3
• 408.4486
• .

• 4-Pyridinecarboxylicacid, 2-(1-carboxyethylidene)hydrazide
• 1081-50-1
• C9H9 N3 O3
• 207.1861
• .

• 4-Pyrimidinamine,6-[imino(4-methoxyphenyl)methyl]-2-methoxy-
• 143467-66-7
• C13H14 N4 O2
• 258.2759
• .

• 4-Piperidinecarboxylicacid, 4-phenyl-1-[(phenylamino)carbonyl]-, ethyl ester
• 102375-30-4
• C21H24 N2 O3
• 352.4269
• .

• 4-Pyridinecarboxylicacid, 2-[4-(4-chlorophenyl)-2-hydroxy-1,4-dioxo-2-butenyl]hydrazide, (Z)- (9CI)
• 149990-81-8
• C16H12 Cl N3 O4
• 345.7372
• .

• 4-Piperidinol,1-(7-fluoroheptyl)-4-phenyl-, 4-propanoate, hydrochloride (1:1)
• 1504-01-4
• C21H32 F N O2 . Cl H
• 385.9436
• .

• 4-Thiazolidinone,2-(2-thienyl)-3-[2-[(2-thienylmethylene)amino]ethyl]-
• 157248-04-9
• C14H14 N2 O S3
• 322.4688
• .

• 4-Thiazolidinone,2-(1,3-benzodioxol-5-yl)-3-[2-(cyclohexylamino)ethyl]-, hydrochloride (1:1)
• 102612-93-1
• C18H24 N2 O3 S . Cl H
• 384.96
• .

• 4-Thiazolidinone,3-ethyl-5-[(phenylamino)methylene]-2-thioxo-, (Z)- (9CI)
• 118050-10-5
• C12H12 N2 O S2
• 264.3665
• .

• 4,6(1H,5H)-Pyrimidinedione,1-[(2-furanylmethylene)amino]dihydro-3-[2-(1H-indol-3-yl)acetyl]-2-thioxo-
• 161806-27-5
• C19H14 N4 O4 S
• 394.4039
• .

• 4H-Furo[2,3-b]oxocin-2(9aH)-one,5,8-dihydro-4,8-dihydroxy-7-[2-(3,4,4a,5,6,7,8,8a-octahydro-2,5,5,8a-tetramethyl-1-naphthalenyl)ethyl]-(9CI)
• 145427-70-9
• C25H36 O5
• .

• 4H-Pyrimido[6,1-a]isoquinolin-4-one,2,3,6,7-tetrahydro-9,10-dimethoxy-3,7-dimethyl-2-(phenylimino)-, hydrochloride(1:1)
• 108445-72-3
• C22H23 N3 O3 . Cl H
• 413.8973
• .

• 4-Piperidinamine,1-(2-ethoxyethyl)-3-methyl-N-phenyl-, cis- (9CI)
• 125080-82-2
• C16H26 N2 O
• 0
• .

• 4H-Imidazol-4-one,5-[(4-chlorophenyl)methylene]-3,5-dihydro-2-phenyl-3-[(phenylmethylene)amino]-
• 126245-06-5
• C23H16 Cl N3 O
• 385.8456
• .

• 4,6(1H,5H)-Pyrimidinedione,dihydro-1-[[2-oxo-2-(10H-phenothiazin-10-yl)ethyl]amino]-3-phenyl-5-(phenylmethylene)-2-thioxo-
• 141177-61-9
• C31H22 N4 O3 S2
• 562.6614
• .

• 4(1H)-Pyridinone,1-(2-chloro-3,5-dimethoxyphenyl)-2-(4-fluorophenyl)-3-methyl-6-phenyl-
• 114231-14-0
• C26H21 Cl F N O3
• 0
• .

• 4-Heptanone,1,7-dichloro-1,1,7,7-tetrafluoro-2,6-dihydroxy-2,6-bis(trifluoromethyl)-
• 101913-83-1
• C9H6 Cl2 F10 O3
• 423.0322
• .

• 4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-7-hydroxy-3,5-dimethoxy-
• 1486-66-4
• C17H14 O7
• 330.2889
• .

• 4-Pyridinecarboxamide,N-[3,3-bis(4-chlorophenyl)propyl]-
• 102311-16-0
• C21H18 Cl2 N2 O
• 385.2864
• .

• 4H-1-Benzopyran-4-one,7-[[6-O-(4-carboxy-3-hydroxy-3-methyl-1-oxobutyl)-b-D-glucopyranosyl]oxy]-5-hydroxy-6,8-dimethyl-2-phenyl-
• 171439-54-6
• C29H32 O13
• .

• 4-Thiazolidinone,3-[3-(dimethylamino)propyl]-2-phenyl-, hydrochloride (1:1)
• 141955-94-4
• C14H20 N2 O S . Cl H
• 300.8473
• .

• 4(3H)-Pyrimidinone,2-(methylthio)-3-[4-[3-(4-phenyl-1-piperazinyl)propoxy]phenyl]-
• 119321-63-0
• C24H28 N4 O2 S
• 326.4326
• .

• 4-Piperidinemethanol, α-phenyl-1-(2-phenylethyl)-
• 107703-78-6
• C₂₀H₂₅NO
• 376.19
• .

• 4H-1-Benzopyran-4-one,5,7-dihydroxy-3-(5-hydroxy-2,2-dimethyl-2H-1-benzopyran-8-yl)-
• 117204-81-6
• C20H16 O6
• 370.3958
• .

• 4-Pyrimidinecarboxylicacid, 3,4,5,6-tetrahydro-2-methyl-
• 117305-84-7
• C6H10 N2 O2
• 0
• .

• 4(3H)-Quinazolinone,3-[[(2-chlorophenyl)[2-(2-chlorophenyl)diazenyl]methylene]amino]-2-methyl-
• 110605-07-7
• C22H15 Cl2 N5 O
• 436.2934
• .

• 4H-[1,2,4]Triazino[3,4-a]phthalazin-4-one,3-(4-methoxyphenyl)-7-(1-pyrrolidinyl)-
• 126650-80-4
• C21H19 N5 O2
• 373.4079
• .

• 4H,5H-Thieno[2',3':5,6][1,2]thiazino[3,4-e]-1,3-oxazin-4-one,8-chloro-3-cyclohexyl-2-(cyclohexylimino)-2,3-dihydro-5-methyl-, 6,6-dioxide
• 123277-34-9
• C21H26 Cl N3 O4 S2
• 484.0318
• .

• 4H-Furo[3,2-c]pyran-4-one,6-(3,4-dihydroxyphenyl)-2,3-dihydro-2,3,3-trimethyl- (9CI)
• 159650-12-1
• C16H16 O5
• .

• 4H-1-Benzopyran-4-one,3-[2-(1,1-dimethyl-2-propenyl)-4,5-dihydroxyphenyl]-5,7-dihydroxy-
• 124166-27-4
• C20H18 O6
• 0
• .

• 4H-Pyrido[4',3':4,5]thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine,6-(2-chlorophenyl)-7,8,9,10-tetrahydro-1-methyl-
• 114800-58-7
• C18H16 Cl N5 S
• .

• 4-Oxazolidinone,3-ethyl-5-[2-(3-ethyl-2-thiazolidinylidene)ethylidene]-2-thioxo-
• 10505-41-6
• C12H16 N2 O2 S2
• 234-034-4
• 284.39764
• .