• 4-Thiazolidinone,3,3'-(1,2-ethanediyl)bis[2-(3-chlorophenyl)-, (R*,R*)- (9CI)
• 109858-94-8
• C20H18 Cl2 N2 O2 S2
• 453.4051
• .

• 4H-1-Benzopyran-4-one,2,3-dihydro-5,7-dimethoxy-2-phenyl-
• 1036-72-2
• C17H16 O4
• 284.31
• .

• 4H-Pyrazolo[3,4-d]pyrimidin-4-one,5-amino-6-[(4-bromophenyl)amino]-1,5-dihydro-
• 141300-20-1
• C11H9 Br N6 O
• 321.1328
• .

• 4H-Anthra[1,2-b]pyran-4,7,12-trione,11-hydroxy-5-methyl-2-[(1E,3E)-1-methyl-1,3-pentadienyl]-8-[2,3,6-trideoxy-3-(dimethylamino)-b-D-arabino-hexopyranosyl]-10-[2,3,6-trideoxy-3-(dimethylamino)-3-C-methyl-a-L-lyxo-hexopyranosyl]- (9CI)
• 110954-32-0
• C41H50 N2 O9
• .

• 4,6(1H,5H)-Pyrimidinedione,1-(2,3-dichlorophenyl)dihydro-3-[4-(4-morpholinyl)phenyl]-5-[(3-nitrophenyl)methylene]-2-thioxo-
• 121608-29-5
• C27H20 Cl2 N4 O5 S
• 583.4425
• .

• 4-Pyridinecarboxylicacid, 2-(1,3-dimethylbutyl)hydrazide
• 15856-16-3
• C12H19 N3 O
• 221.2988
• .

• 4a,10a-Epoxy-1H-naphtho[2,3-c]pyran-3-aceticacid, 3,4,5,10-tetrahydro-9-methoxy-5,10-dioxo-1-propyl-, methyl ester, [1R-(1a,3b,4ab,10ab)]- (9CI)
• 10023-10-6
• C20H22 O7
• .

• 4H-Pyrimido[6,1-a]isoquinolin-4-one,6,7-dihydro-9,10-dimethoxy-6-methyl-2-[(2,4,6-trimethylphenyl)amino]-,hydrochloride (1:1)
• 108508-86-7
• C24H27 N3 O3 . Cl H
• 441.9504
• .

• 4aH-7a,15-Ethenonaphtho[2',3':4,5]cyclohepta[1,2-b]xanthene-4a-carboxylicacid,2,3,4,7,8,14,15,17-octahydro-1,4,12,13,16-pentahydroxy-10-methyl-8,14,17-trioxo-,methyl ester (9CI)
• 149471-16-9
• C31H24 O11
• .

• 4-Thiazolidinone,3-(4-ethoxyphenyl)-5-propyl-2-thioxo-
• 19334-80-6
• C14H17 N O2 S2
• 0
• .

• 4(1H)-Pteridinone,2-amino-7-[(1R,2S)-1,2-dihydroxypropyl]-5,6,7,8-tetrahydro-, (7S)-
• 136459-42-2
• C9H15 N5 O3
• 0
• .

• 4(3H)-Quinazolinone,3-[2-(4-hydroxy-3-methoxyphenyl)-4-oxo-3-thiazolidinyl]-2-phenyl-
• 106873-22-7
• C24H19 N3 O4 S
• 445.4904
• .

• 4-Piperidinamine,1-methyl-2,3,6-triphenyl-
• 124069-21-2
• C24H26 N2
• 378.93758
• .

• 4a,2,1,5,3,3c-[2,3]Butanediyl[1,4]diylidene-4H-cyclopropa[4,5]pentaleno[2,1,6-cde]pentaleno[2,1,6-gha]pentalene,tetradecahydro- (9CI)
• 112896-42-1
• C21H20
• .

• 4-Heptanone, 2,6-bis(trifluoromethyl)-2,6-dihydroxy-1,1,1,7,7,7-hexafluoro-, bis(triethylamine)salt
• 101913-86-4
• C₂₁H₃₆F₁₂N₂O₃
• 0
• .

• 4-Quinolinol,4-ethynyldecahydro-1,2-dimethyl-, benzoate (ester), hydrochloride, (2a,4a,4ab,8aa)- (9CI)
• 110345-59-0
• C20H25 N O2 . Cl H
• 347.8789
• .

• 4-Quinolinecarboxylicacid, 3-amino-2-[1,1'-biphenyl]-4-yl-6-fluoro-
• 131745-25-0
• C22H15 F N2 O2
• 358.3651
• .

• 4H-1-Benzopyran-4-one,2-(2,5-dihydroxyphenyl)-2,3-dihydro-5-hydroxy-6,7-dimethoxy-, (2S)-
• 161748-44-3
• C17H16 O7
• 332.3047
• .

• 4-Piperidinecarboxylicacid, 1-[2-(cyclohexyloxy)ethyl]-4-phenyl-, ethyl ester, hydrobromide (1:1)
• 102945-47-1
• C22H33 N O3 . Br H
• 440.4143
• .

• 4501U (9CI)
• 115516-09-1
• .

• 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid,6-[[[[[([1,1'-biphenyl]-4-ylcarbonyl)methylamino]carbonyl]amino](3,4-dihydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-,monosodium salt, [2S-[2a,5a,6b(S*)]]- (9CI)
• 106135-38-0
• C31H30 N4 O8 S . Na
• 0
• .

• 4H-Pyrido[1,2-a]pyrimidin-4-one,6-methyl-3-(1-pyrrolidinylcarbonyl)-
• 125055-75-6
• C14H15 N3 O2
• 257.2878
• .

• 4(1H)-Pyridazinone,6-methyl-3-(2-quinolinylmethoxy)-1-[3-(trifluoromethyl)phenyl]-
• 146824-84-2
• C22H16 F3 N3 O2
• 0
• .

• 4(1H)-Pyridazinone,1-(3,4-dimethoxyphenyl)-3-methoxy-
• 146824-89-7
• C13H14 N2 O4
• 0
• .

• 4(3H)-Pyrimidinone,5-(1,2,3,4-tetrahydro-1-methyl-4-quinolinyl)-
• 153004-53-6
• C14H15 N3 O
• 241.2884
• .

• 4H-1,2,4-Benzothiadiazine,3-(2,3-dihydro-3,3,5-trimethyl-1H-pyrazol-1-yl)-4-methyl-, 1,1-dioxide
• 107089-88-3
• C14H18 N4 O2 S
• 306.3833
• .

• 4H-1,3,2-Benzoxazaphosphorin-4-one,2,3-dihydro-2-phenyl-3-(phenylmethyl)-, 2-oxide
• 143000-20-8
• C20H16 N O3 P
• 0
• .

• 4H-1-Benzopyran-4-one,3-[[6-O-(6-deoxy-a-L-mannopyranosyl)-4-O-[(2Z)-3-(4-hydroxyphenyl)-1-oxo-2-propen-1-yl]-b-D-galactopyranosyl]oxy]-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-
• 115794-35-9
• C36H36 O18
• .

• 4-Quinolinamine,N-hydroxy-8-methyl-, 1-oxide
• 13442-10-9
• C10H10 N2 O2
• 190.22
• .

• 4-Pyrimidinamine,2-chloro-5-nitro-
• 1920-66-7
• C₄H₃ClN₄O₂
• 217-648-7
• 174.55
• .

• 4H-Pyrano[3,2-b]pyridin-4-one,2-(3-pyridinyl)-
• 148190-29-8
• C13H8 N2 O2
• 224.2148
• .

• 4-Piperidinamine,N-phenyl-1-(1-phenylcyclopropyl)-, hydrochloride (1:2)
• 101997-48-2
• C20H24 N2 . 2 Cl H
• 365.3398
• .

• 4-Imidazolidinone,5-[(4-chlorophenyl)methylene]-3-(2-methylbenzoyl)-2-thioxo-
• 112822-05-6
• C18H13 Cl N2 O2 S
• 356.826
• .

• 4-Heptanone,3-chloro-1,1,1,7,7,7-hexafluoro-2,6-dihydroxy-2,6-bis(trifluoromethyl)-
• 101913-81-9
• C9H5 Cl F12 O3
• 424.568
• .

• 4-Quinolinamine,N-[2-(4-chlorophenyl)ethyl]-8-fluoro-
• 124532-94-1
• C17H14 Cl F N2
• 300.7579
• .

• 4-Morpholineethanol, a-[(1E)-2-(4-methoxyphenyl)ethenyl]-
• 103980-45-6
• C15H21 N O3
• 0
• .

• 4-Pyridinecarboxylicacid, 2-(2-phenyl-4-quinolinyl)hydrazide
• 159586-78-4
• C21H16 N4 O
• 340.3779
• .

• 4H-1,3-Thiazino[5,6-b]quinoxalin-4-one,2-[(2,4,6-trimethylphenyl)amino]-
• 154371-24-1
• C19H16 N4 O S
• 348.4215
• .

• 4-Heptanone,1,1,1,7,7,7-hexafluoro-2,6-dihydroxy-2,6-bis(trifluoromethyl)-, oxime
• 101913-88-6
• C9H7 F12 N O3
• 405.1376
• .

• 4H-1-Benzopyran-4-one,3-[[2-O-(6-deoxy-a-L-mannopyranosyl)-b-D-galactopyranosyl]oxy]-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-
• 117611-67-3
• C27H30 O16
• 0
• .

• 4-Piperidinemethanol,1-[(5-methoxy-1H-indol-3-yl)methyl]-4-phenyl-, hydrochloride (1:1)
• 102071-32-9
• C22H26 N2 O2 . Cl H
• 386.915
• .

• 4aH-7a,15-endo-Oxiranonaphtho[2',3':4,5]cyclohepta[1,2-b]xanthene-4a-carboxylicacid,6-chloro-2,3,4,7,8,13,15,17-octahydro-1,4,9,12,14,16-hexahydroxy-18-methyl-8,13,17-trioxo-,methyl ester, (4R,4aR,7aR,15R,18R,20S)- (9CI)
• 160169-59-5
• C31H23 Cl O13
• .

• 4H-1-Benzopyran-4-one,3-[(4-O-acetyl-6-deoxy-a-L-mannopyranosyl)oxy]-7-[(6-deoxy-a-L-mannopyranosyl)oxy]-2-(3,4-dihydroxyphenyl)-5-hydroxy-6-methoxy-
• 160473-01-8
• C30H34 O17
• .

• 4-Piperidinol,1-(4-phenoxy-2-butyn-1-yl)-4-phenyl-, 4-propanoate, hydrochloride (1:1)
• 128864-80-2
• C24H27 N O3 . Cl H
• 413.937
• .

• 4(1H)-Pyrimidinone,2-amino-6-chloro-
• 1194-21-4
• C₄H₄ClN₃O
• 214-785-4
• 145.5471
• .

• 4H-Imidazol-4-one,5-[(4-bromophenyl)methylene]-3-[[(4-bromophenyl)methylene]amino]-3,5-dihydro-2-phenyl-
• 126245-18-9
• C23H15 Br2 N3 O
• 509.1927
• .

• 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid,6-[[[4-[2-hydroxy-5-[2-[[2-(methoxycarbonyl)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]hept-6-yl]amino]-2-oxoethyl]phenoxy]phenyl]acetyl]amino]-3,3-dimethyl-7-oxo-,methyl ester, [2S-[2a,5a,6b(2R*,5S*,6S*)]]- (9CI)
• 145497-70-7
• C34H38 N4 O10 S2
• 0
• .

• 4(3H)-Quinazolinone,2-methyl-3-[[5-(phenylmethyl)-1,3,4-oxadiazol-2-yl]methyl]-
• 106924-07-6
• C19H16 N4 O2
• 332.3559
• .

• 4(3H)-Pyrimidinone,5-(4-morpholinyl)-
• 153004-48-9
• C8H11 N3 O2
• 181.1918
• .

• 4H,7H-Cyclopenta[4,5]thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-8-carboxamide,6-(2-chlorophenyl)-8,9-dihydro-1-methyl-N,N-dipropyl-
• 114800-19-0
• C25H28 Cl N5 O S
• 482.0407
• .