• 5-methyl-1H-pyrazole-3-carboxylic acid - 1-(6-amino-9H-purin-9-yl)-3-[bis(2-hydroxyethyl)amino]propan-2-ol (1:1)
• 65551-83-9
• C₁₇H₂₆N₈O₅
• 422.4389
• .

• 5-methyl-1H-pyrazole-3-carboxylic acid - 1-(6-amino-7H-purin-7-yl)-3-[(2-hydroxyethyl)(methyl)amino]propan-2-ol (1:1)
• 65551-85-1
• C₁₆H₂₄N₈O₄
• 392.413
• .

• 5-Hexene-3-thiol, 3-(1,1-dimethylethyl)-2,2-dimethyl-
• 65566-36-1
• C₁₂H₂₄S
• .

• 5,7-dibromoquinolin-8-ol - oxostibanyl (1:1)
• 35592-46-2
• C₉H₅Br₂NO₂Sb
• 440.7095
• .

• 5,7-dibromo-6-methylquinolin-8-ol - oxostibanyl (1:1)
• 35592-47-3
• C₁₀H₇Br₂NO₂Sb
• 454.7361
• .

• 5-chloro-7-iodoquinolin-8-ol - oxostibanyl (1:1)
• 35592-48-4
• C₉H₅ClINO₂Sb
• 443.259
• .

• 5-chloro-7-iodo-6-methylquinolin-8-ol - oxostibanyl (1:1)
• 35592-49-5
• C₁₀H₇ClINO₂Sb
• 457.2856
• .

• 5-nitroquinolin-8-ol - oxostibanyl (1:1)
• 35592-51-9
• C₉H₆N₂O₄Sb
• 327.9149
• .

• 5H-Thiazolo[3,2-a]pyrimidin-5-one,6-[2-[4-[[3-[(4-fluorophenyl)methyl]-3H-imidazo[4,5-b]pyridin-2-yl]carbonyl]-1-piperidinyl]ethyl]-2,3-dihydro-7-methyl-, ethanedioate (1:1)
• 142872-78-4
• C₂₈H₂₉FN₆O₂S·C₂H₂O₄
• .

• 5H-Thiazolo[3,2-a]pyrimidin-5-one,6-[2-[4-[[1-[(4-fluorophenyl)methyl]-1H-imidazo[4,5-b]pyridin-2-yl]carbonyl]-1-piperidinyl]ethyl]-2,3-dihydro-7-methyl-
• 142872-79-5
• C₂₈H₂₉FN₆O₂S
• .

• 5,8-Dioxa-2,11-diazatridecanedioic acid, 1-(1,1-dimethylethyl) ester
• 356066-44-9
• C₁₃H₂₆N₂O₆
• .

• 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid,7-methoxy-3-(methoxymethyl)-8-oxo-7-[(2-thienylacetyl)amino]-,diphenylmethyl ester, (6R)-
• 35608-22-1
• C₂₉H₂₈N₂O₆S₂
• .

• 5-(5,7-dihydroxy-9,13,16-trimethyl-15,17,20-trioxahexacyclo[14.3.1.1~14,18~.0~1,13~.0~4,12~.0~5,9~]henicos-8-yl)-2H-pyran-2-one (non-preferred name)
• 35609-28-0
• C₂₆H₃₄O₇
• 458.544
• .

• 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid,3-[(acetyloxy)methyl]-7-methoxy-8-oxo-7-[(2-thienylacetyl)amino]-,monosodium salt, (6R)-
• 35609-60-0
• C₁₇H₁₈N₂O₇S₂·Na
• .

• 5-cyclohexylidene-3-phenyl-2-thioxo-1,3-thiazolidin-4-one
• 35610-74-3
• C₁₅H₁₅NOS₂
• 289.4157
• .

• 5-bromo-3-methyl-4-nitro-1,2-thiazole
• 35610-98-1
• C₄H₃BrN₂O₂S
• 223.0478
• .

• 5-Isoxazolidinol, 3,3,5-trimethyl-
• 35614-83-6
• C₆H₁₃NO₂
• .

• 5-Pyrimidinecarboxylic acid, 2-(trichloromethyl)-, ethyl ester
• 143034-43-9
• C₈H₇Cl₃N₂O₂
• .

• 5,5,5-trichloro-N~2~-methyl-N-[1-(1,3-thiazol-2-yl)ethyl]-N~2~-(4,4,4-trichloro-3-methylbutanoyl)leucinamide
• 65647-65-6
• C₁₇H₂₃Cl₆N₃O₂S
• 546.1664
• .

• 5-(2,3,6-triphenylphenyl)indane
• 65648-90-0
• C₃₃H₂₆
• 422.5595
• .

• 5-Hexen-3-ol, 3-ethyl-5-[[(4-methylphenyl)sulfonyl]methyl]-
• 143101-21-7
• C₁₆H₂₄O₃S
• .

• 5-{1-[(E)-(3,4-dimethoxyphenyl)(ethylimino)methyl]-1,2,3,4-tetrahydroquinolin-6-yl}-6-methyl-3,6-dihydro-2H-1,3,4-thiadiazin-2-one
• 143102-31-2
• C₂₄H₂₈N₄O₃S
• 452.5691
• .

• 5,8,9,10,10a,11-hexahydro-6H-[1,3]dioxolo[4,5-h]pyrrolo[2,1-b][3]benzazepine
• 35667-18-6
• C₁₄H₁₇NO₂
• 231.2903
• .

• 5-(oxiran-2-ylmethyl)-5-(pentan-2-yl)pyrimidine-2,4,6(1H,3H,5H)-trione
• 65685-89-4
• C₁₂H₁₈N₂O₄
• 254.2823
• .

• 5-(oxiran-2-ylmethyl)-5-(prop-2-en-1-yl)pyrimidine-2,4,6(1H,3H,5H)-trione
• 65685-97-4
• C₁₀H₁₂N₂O₄
• 224.2133
• .

• 5-Pyrimidinecarboxylic acid,1,2,3,4-tetrahydro-4-(4-methoxyphenyl)-6-methyl-2-oxo-,1,1-dimethylethyl ester
• 356773-72-3
• C₁₇H₂₂N₂O₄
• .

• 5-Pyrimidinecarboxylic acid,1,2,3,4-tetrahydro-6-methyl-4-phenyl-2-thioxo-, 1,1-dimethylethyl ester
• 356773-73-4
• C₁₆H₂₀N₂O₂S
• .

• 5-Undecene, 4-methyl-
• 143185-91-5
• C₁₂H₂₄
• .

• 5-tert-butyl-3-{[methyl(octyl)amino]methyl}biphenyl-2-ol
• 35687-08-2
• C₂₆H₃₉NO
• 381.594
• .

• 5-methoxy-1,2-dimethyl-4-nitro-1H-imidazole
• 35687-44-6
• C₆H₉N₃O₃
• 171.154
• .

• 5-(4-chlorophenyl)-6-ethylpyrimidine-2,4-diamine 2,3-dihydroxybutanedioate (1:1)
• 65703-46-0
• C₁₆H₁₉ClN₄O₆
• 398.7983
• .

• 5,6-dimethoxy-1-methyl-1,2,3,8,9,9a-hexahydro-7H-benzo[de]quinolin-7-one
• 35690-87-0
• C₁₅H₁₉NO₃
• 261.3163
• .

• 5,9,13,17,21,25,29-Hentriacontaheptaen-2-one,6,10,14,18,22,26,30-heptamethyl-, (5E,9E,13E,17E,21E,25E)-
• 65717-25-1
• C₃₈H₆₂O
• .

• 5H-2-Benzazepine, 3-ethoxy-4-methyl-1-phenyl-
• 143266-09-5
• C₁₉H₁₉NO
• .

• 5H-2-Benzazepine, 3-ethoxy-1-phenyl-4-(phenylmethyl)-
• 143266-11-9
• C₂₅H₂₃NO
• .

• 5-{(E)-2-[4-(dimethylamino)phenyl]ethenyl}-1-ethyl-3,4-dihydro-2H-pyrrolium iodide
• 65719-14-4
• C₁₆H₂₃IN₂
• 370.2717
• .

• 5-Pyrimidinecarboxylic acid, 5-fluorohexahydro-4-hydroxy-2,6-dioxo-,methyl ester
• 65726-47-8
• C₆H₇FN₂O₅
• .

• 5,11-dihydro-2H-indeno[1,2-b]quinolin-2-one
• 35717-74-9
• C₁₆H₁₁NO
• 233.2646
• .

• 5'-[(2S)-butan-2-yl]-2'-ethyl-12'-hydroxy-3',6',18-trioxoergotaman
• 65756-55-0
• C₃₁H₃₉N₅O₅
• 561.6719
• .

• 5(4H)-Oxazolone, 2-methyl-4-(phenylmethylene)-, (4E)-
• 143417-47-4
• C₁₁H₉NO₂
• .

• 5,6-dimethyl-N-[4-(morpholin-4-ylcarbonyl)phenyl]-2-phenylpyrimidin-4-amine
• 65789-88-0
• C₂₃H₂₄N₄O₂
• 388.4623
• .

• 5-[(2E)-2-(2-chloro-6-fluorobenzylidene)hydrazinyl]-1H-1,2,4-triazole
• 65789-96-0
• C₉H₇ClFN₅
• 239.6368
• .

• 5-benzhydryl-1H-pyrazole
• 143547-74-4
• C₁₆H₁₄N₂
• 234.30
• .

• 5-(4-methoxyphenyl)-1,3-oxazole-2(3H)-thione
• 35801-73-1
• C₁₀H₉NO₂S
• 207.249
• .

• 5-Hexenal,6-[(5S)-2-[(1S)-3-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-1-methylpropyl]-5-methyl-3-oxo-1-cyclopenten-1-yl]-2-methyl-4-(phenylmethoxy)-,(2S,4S,5E)-
• 658080-41-2
• C₄₀H₅₀O₄Si
• .

• 5-(4-aminophenyl)-N,8-dimethyl-8,9-dihydro-7H-[1,3]dioxolo[4,5-h][2,3]benzodiazepine-7-carboxamide hydrochloride (1:1)
• 143692-48-2
• C₁₉H₂₁ClN₄O₃
• 388.848
• .

• 5-amino-3-(1,3-diphenylpropan-2-yl)-1,2,3-oxadiazol-3-ium chloride
• 35819-56-8
• C₁₇H₁₈ClN₃O
• 315.7973
• .

• 5-[(dimethylamino)methylidene]-1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione
• 35824-98-7
• C₉H₁₃N₃O₃
• 211.2178
• .

• 5-Isoxazolidinecarboxylic acid,3-(3-bromo-4-methyl-2-oxo-2H-pyran-6-yl)-2-phenyl-, methyl ester, cis-
• 143739-30-4
• C₁₇H₁₆BrNO₅
• .

• 5-Isoxazolidinecarboxylic acid,3-(3-bromo-4-methyl-2-oxo-2H-pyran-6-yl)-2-phenyl-, methyl ester,trans-
• 143739-37-1
• C₁₇H₁₆BrNO₅
• .