• 4H-Pyrazolo[3,4-d]pyrimidin-4-one,1,5-dihydro-6-(trifluoromethyl)-
• 1780-79-6
• C6H3 F3 N4 O
• 204.1094
• .

• 4(3H)-Quinazolinone,8-bromo-3-[2-(2,5-dihydroxyphenyl)ethyl]-2-phenyl-
• 86804-52-6
• C22H17 Br N2 O3
• 437.286
• .

• 4H-Pyrano[3,2-b]pyridin-4-one,2-(4-fluorophenyl)-
• 148190-22-1
• C14H8 F N O2
• 0
• .

• 4-Pyridinecarboxylicacid, 1,2,3,6-tetrahydro-1-methyl-
• 68947-50-2
• C7H11 N O2
• .

• 4H-1-Benzopyran-4-one,3-[(6-deoxy-2-O-b-D-glucopyranosyl-a-L-mannopyranosyl)oxy]-7-[(2-O-b-D-glucopyranosyl-b-D-glucopyranosyl)oxy]-5-hydroxy-2-(4-hydroxyphenyl)-8-(3-methyl-2-butenyl)-(9CI)
• 125028-59-3
• C44H58 O25
• .

• 4(3H)-Pyrimidinone,2-amino-5-[3-[[4-(2-chloroacetyl)phenyl]amino]propyl]-6-methyl-
• 2499-51-6
• C16H19 Cl N4 O2
• 334.8007
• .

• 4-Pyridinecarbonitrile,2-propyl-
• 33744-19-3
• C9H10 N2
• 251-665-0
• 146.1891
• .

• 4-Isoquinolinecarboxamide,N-[2-(diethylamino)ethyl]-1,2-dihydro-2-methyl-1-oxo-
• 148581-42-4
• C17H23 N3 O2
• 301.3834
• .

• 4,7,10-Triazabicyclo[12.3.1]octadeca-1(18),2,14,16-tetraene-5,8,11-trione,12-amino-15,17-dimethoxy-9-(1-methylpropyl)-6-(2-methylpropyl)- (9CI)
• 55856-90-1
• C25H38 N4 O5
• .

• 4-Thiazolidinecarboxylicacid, 2-(3-pyridinyl)-
• 59777-95-6
• C₉H₁₀N₂O₂S
• 210.25
• .

• 4-Cyclopentene-1,3-dione,4-hydroxy-2,5-bis(4-hydroxyphenyl)- (9CI)
• 52591-12-5
• C17H12 O5
• 0
• .

• 4H-1,4-Benzoxazine-4-ethanaminium,6-[[(dimethylamino)carbonyl]oxy]-N-ethyl-2,3-dihydro-N,N-dimethyl-3-oxo-,bromide (1:1)
• 97051-00-8
• C17H26 N3 O4 . Br
• .

• 4H-1-Benzoselenin-4-one,2,3-dihydro-2-phenyl-
• 4734-54-7
• C15H12 O Se
• .

• 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 3,3-dimethyl-7-oxo-6-[[(2-propenylthio)acetyl]amino]-, monopotassiumsalt, [2S-(2a,5a,6b)]- (9CI)
• 897-61-0
• C13H18 N2 O4 S2 . K
• 0
• .

• 4,6,8-Dodecatrien-2-ol,12-(3-pyridinyl)-, 2-acetate, (2S,4E,6E,8E)-
• 147391-84-2
• C19H25 N O2
• .

• 4H-1-Benzopyran-4-one,2-[4-[(6-deoxy-a-L-mannopyranosyl)oxy]-3-methoxyphenyl]-3-(b-D-glucofuranosyloxy)-5,7-dihydroxy-(9CI)
• 10576-85-9
• C28H32 O16
• .

• 4,14-Dioxatricyclo[9.2.1.13,6]pentadeca-6(15),11,13-triene-12-carboxylicacid, 7-hydroxy-2,9-bis(1-methylethenyl)-5-oxo-, methyl ester, (2R,3R,7R,9R)-
• 173357-06-7
• C21H24 O6
• .

• 4(1H)-Pyrimidinone,2-amino-5-ethyl-6-[(2-methylphenyl)amino]- (9CI)
• 6327-20-4
• C13H16 N4 O
• 244.2923
• .

• 4-Thiazolidinone,3-(4-methyl-9H-xanthen-9-yl)-5-(phenylmethylene)-2-thioxo-
• 7401-09-4
• C24H17 N O2 S2
• 415.5273
• .

• 4H-1-Benzopyran-4-one,2,3-dihydro-2-phenyl-, 2-(2,4-dinitrophenyl)hydrazone
• 16281-65-5
• C21H16 N4 O5
• 404.3755
• .

• 4(3H)-Quinazolinone,6-iodo-3-[2-[1-(4-morpholinylmethyl)-1H-benzimidazol-2-yl]phenyl]-2-phenyl-
• 91045-23-7
• C32H26 I N5 O2
• 639.4856
• .

• 4-Thiazolidinone,3,3'-(1,4-phenylene)bis[2-(4-chlorophenyl)-
• 81512-22-3
• C24H18 Cl2 N2 O2 S2
• 501.4479
• .

• 4,9-Dioxatetracyclo[11.3.1.03,5.08,10]heptadecan-15-one,12-(acetyloxy)-5,10,17,17-tetramethyl-14-methylene-, (1R,3S,5S,8S,10S,12R,13S)-
• 88498-46-8
• C22H32 O5
• 376.49
• .

• 4H-1-Benzopyran-4-one,5,7-dihydroxy-2-(2-hydroxyphenyl)-8-methoxy-
• 80713-32-2
• C16H12 O6
• 0
• .

• 4(3H)-Pyrimidinone,6-hydroxy-2-(methoxymethyl)-5-(phenylmethyl)-
• 5491-63-4
• C13H14 N2 O3
• 590.43
• .

• 4,8-Dodecadienedial
• 55303-96-3
• C12H18 O2
• 259-584-2
• 194.27012
• .

• 4(1H)-Pyrimidinone,5-(2,4-dichlorophenoxy)-2,3-dihydro-2-thioxo-
• 7144-25-4
• C10H6 Cl2 N2 O2 S
• 289.1378
• .

• 4,6(1H,5H)-Pyrimidinedione,5-(2-buten-1-yl)dihydro-5-phenyl-2-thioxo-
• 92245-79-9
• C14H14 N2 O2 S
• 274.3382
• .

• 4,6-Pyrimidinedicarboxamide
• 6345-42-2
• C6H6 N4 O2
• 166.1374
• .

• 4(3H)-Pyrimidinone,5-hexyl-
• 103980-64-9
• C10H16 N2 O
• 0
• .

• 4-Penten-2-one,3,3-bis[2-(4,6-diamino-1,3,5-triazin-2-yl)ethyl]-4-methyl-
• 4766-46-5
• C16H24 N10 O
• 372.4282
• .

• 4(3H)-Pyrimidinone,3-(2-chlorophenyl)-2-(methylthio)-
• 89069-22-7
• C11H9 Cl N2 O S
• 252.72
• .

• 4H-1,2,4-Triazolium,5-[2-[4-(diethylamino)phenyl]diazenyl]-1,4-dimethyl-, chloride (1:1)
• 73398-77-3
• C14H21 N6 . Cl
• 277-455-9
• 310.82562
• .

• 4-Pyridinecarboxylicacid, 4-(aminocarbonyl)-1H-imidazol-5-yl ester
• 77444-69-0
• C10H8 N4 O3
• 232.1955
• .

• 4,6(1H,5H)-Pyrimidinedione,1-(2-chlorophenyl)dihydro-3-(4-methoxyphenyl)-5-[2-(2-methoxyphenyl)diazenyl]-2-thioxo-
• 76153-46-3
• C24H19 Cl N4 O4 S
• 494.9501
• .

• 4H-1-Benzopyran-4-one,7,8-dihydroxy-2-(3,4,5-trimethoxyphenyl)-
• 79492-68-5
• C18H16 O7
• .

• 4H-Imidazo[4,5-c][1,8]naphthyridin-4-one,3,5-dihydro-5-phenyl-3-(1-phenylethyl)-
• 139482-17-0
• C23H18 N4 O
• 366.4152
• .

• 4-Isoquinolinol,1,2,3,4-tetrahydro-5,8-dimethoxy-
• 102073-77-8
• C11H15 N O3
• 0
• .

• 4-Biphenylglyoxal, monosodium bisulphite
• 100482-22-2
• C₁₄H₁₁NaO₅S
• 0
• .

• 4-Thiazolidinecarboxylicacid, 2,5,5-trimethyl-, (4S)-
• 212755-85-6
• C7H13 N O2 S
• 175.25
• .

• 4H-1-Benzopyran-4-one,2-(3,4-dimethoxyphenyl)-7-hydroxy-3,6-dimethoxy-
• 163318-81-8
• C19H18 O7
• .

• 4H-1-Benzopyran-4-one,5,8-dihydroxy-2-(2-hydroxyphenyl)-7-methoxy-
• 77056-20-3
• C16H12 O6
• 300.2629
• .

• 4,7-Methano-1H-isoindole,2,3,3a,4,7,7a-hexahydro-2-[3-(4-morpholinyl)propyl]-
• 73855-76-2
• C16H26 N2 O
• 0
• .

• 4-Pyridinecarboxaldehyde,O-(1-methylethyl)oxime, 1-oxide
• 72990-43-3
• C9H12 N2 O2
• 180.2038
• .

• 4,7-Epoxyisobenzofuran-5-acetonitrile,octahydro-1,3-dioxo-, (3aa,4b,5a,7b,7aa)- (9CI)
• 127311-93-7
• C10H9 N O4
• 207.1828
• .

• 4H-1-Benzopyran-4-one,2-[3-[(1S,5R,6S)-6-[2,4-dihydroxy-3-(3-methyl-2-buten-1-yl)benzoyl]-5-(2,4-dihydroxyphenyl)-3-methyl-2-cyclohexen-1-yl]-2,4-dihydroxyphenyl]-5,7-dihydroxy-3-(3-methyl-2-buten-1-yl)-
• 89200-02-2
• C45H44 O11
• .

• 4-Piperidinecarboxylicacid, 1-phenyl-
• 94201-40-8
• C12H15 N O2
• 303-626-5
• 205.253
• .

• 4-Thiazolidinone,2-(1,3-dimethyl-5-oxo-2-thioxo-4-imidazolidinylidene)-3-ethyl-5-(1-methyl-2(1H)-pyridinylidene)-
• 94232-69-6
• C16H18 N4 O2 S2
• 303-997-3
• 362.46972
• .

• 4H-1-Benzopyran-4-one,7-[(5-O-b-D-glucopyranosyl-D-apio-b-D-furanosyl)oxy]-3-[4-[(5-O-b-D-glucopyranosyl-D-apio-b-D-furanosyl)oxy]phenyl]-5-hydroxy-(9CI)
• 78693-95-5
• C37H46 O23
• .

• 4,11-Triphenodioxazinedisulfonicacid,6,13-dichloro-3,10-bis[[4-[[4-chloro-6-[(4-phosphonophenyl)amino]-1,3,5-triazin-2-yl]amino]-2,5(or3,5)-disulfophenyl]amino]-, octaammonium salt (9CI)
• 94279-18-2
• C48H32 Cl4 N14 O26 P2 S6 . 8 H3 N
• 304-764-9
• .