• 5H-Thieno[2,3-a]quinolizine-10-carboxamide,N-[2-(diethylamino)ethyl]-4,7-dihydro-7-oxo-8-phenyl-
• 104675-73-2
• C₂₄H₂₇N₃O₂S
• .

• 5H-Thieno[3,2-a]quinolizine-10-carboxylic acid,4,7-dihydro-7-oxo-8-phenyl-
• 104675-64-1
• C₁₈H₁₃NO₃S
• .

• 5H-Thieno[2,3-a]quinolizine-10-carboxylic acid,4,7-dihydro-7-oxo-8-phenyl-, 1-methylethyl ester
• 104675-85-6
• C₂₁H₁₉NO₃S
• .

• 5-Isoxazolidinol, 3-phenyl-2-(phenylmethyl)-, acetate (ester), cis-
• 135383-08-3
• C₁₈H₁₉NO₃
• .

• 5-(1,2-dihydroxyethyl)-3,4-bis(2-oxo-2-phenylethoxy)furan-2(5H)-one (non-preferred name)
• 17405-97-9
• C₂₂H₂₀O₈
• 412.3894
• .

• 5-hydroxy-5-(prop-1-en-2-yl)furan-2(5H)-one
• 17397-87-4
• C₇H₈O₃
• 140.1366
• .

• 5-phenyl-3-(phenylamino)furan-2(5H)-one
• 17408-56-9
• C₁₆H₁₃NO₂
• 251.2799
• .

• 5-(furan-2-yl)-1,3,4-oxathiazol-2-one
• 17452-81-2
• C₆H₃NO₃S
• 169.1579
• .

• 5(4H)-Oxazolone, 4-(dichloromethylene)-2-phenyl-
• 54902-24-8
• C₁₀H₅Cl₂NO₂
• .

• 5-Undecanone, 7-phenyl-
• 30242-38-7
• C₁₇H₂₆O
• .

• 5'-Uridylic acid, 2'-deoxy-5-(2,5-dimethoxy-3,4,6-trimethylphenyl)-
• 105785-90-8
• C₂₀H₂₇N₂O₁₀P
• .

• 5'-Uridylic acid, 2'-deoxy-5-(1,4-dimethoxy-3-methyl-2-naphthalenyl)-
• 105785-92-0
• C₂₂H₂₅N₂O₁₀P
• .

• 5'-Uridylic acid,2'-deoxy-5-(4,5-dimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)-
• 105785-94-2
• C₁₇H₁₉N₂O₁₀P
• .

• 5'-Uridylic acid,2'-deoxy-5-(2,4,5-trimethyl-3,6-dioxo-1,4-cyclohexadien-1-yl)-
• 105785-95-3
• C₁₈H₂₁N₂O₁₀P
• .

• 5'-Uridylic acid,2'-deoxy-5-(1,4-dihydro-3-methyl-1,4-dioxo-2-naphthalenyl)-
• 105785-96-4
• C₂₀H₁₉N₂O₁₀P
• .

• 5H-1,2-Diazepin-5-one,1,4-dihydro-7-methyl-4-(1-methylethylidene)-1-phenyl-
• 105786-83-2
• C₁₅H₁₆N₂O
• .

• 5H-1,2-Diazepin-5-one,7-chloro-1,4-dihydro-4-(1-methylethylidene)-1-phenyl-
• 105786-85-4
• C₁₄H₁₃ClN₂O
• .

• 5H-1,2-Diazepin-5-one,1,4-dihydro-4-(1-methylethylidene)-1-(phenylmethyl)-
• 105786-88-7
• C₁₅H₁₆N₂O
• .

• 5H-1,2-Diazepin-5-one,1,4-dihydro-1,7-dimethyl-4-(1-methylethylidene)-
• 105786-90-1
• C₁₀H₁₄N₂O
• .

• 5'-Uridylic acid, 2'-deoxy-5-(2,5-dimethoxy-3,4-dimethylphenyl)-
• 105785-88-4
• C₁₉H₂₅N₂O₁₀P
• .

• 5-methyl-1-pyridin-2-yl-1,3-dihydro-2H-imidazole-2-thione
• 17452-10-7
• C₉H₉N₃S
• 191.2529
• .

• 5-Pyrimidinecarbonitrile,6-(2-furanyl)-1,2,3,4-tetrahydro-4-oxo-2-thioxo-
• 137446-90-3
• C₉H₅N₃O₂S
• .

• 5H-Thieno[2,3-a]quinolizine-10-carboxylic acid,4,7-dihydro-7-oxo-8-phenyl-
• 104675-62-9
• C₁₈H₁₃NO₃S
• .

• 5,7-dihydroxy-3-(4-hydroxyphenyl)-8-(3-methylbut-2-en-1-yl)-4H-chromen-4-one
• 104691-86-3
• C₂₀H₁₈O₅
• 338.3539
• .

• 5H-Thieno[2,3-a]quinolizine-10-carboxamide,N-[2-(dimethylamino)ethyl]-4,7-dihydro-7-oxo-8-phenyl-,monohydrochloride
• 104675-65-2
• C₂₂H₂₃N₃O₂S·ClH
• .

• 5H-Thieno[2,3-a]quinolizine-10-carboxylic acid,4,7-dihydro-7-oxo-8-phenyl-, phenylmethyl ester
• 104675-86-7
• C₂₅H₁₉NO₃S
• .

• 5H-Thieno[2,3-a]quinolizine-10-carboxylic acid,8-(2-chlorophenyl)-4,7-dihydro-7-oxo-, methyl ester
• 104675-57-2
• C₁₉H₁₄ClNO₃S
• .

• 5H-Thieno[2,3-a]quinolizine-10-carboxamide,N-[3-(dimethylamino)propyl]-4,7-dihydro-7-oxo-8-phenyl-
• 104675-78-7
• C₂₃H₂₅N₃O₂S
• .

• 5-(acetylamino)-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranonosyl-(2->6)-beta-D-galactopyranosyl-(1->4)-2-(acetylamino)-2-deoxy-beta-D-glucopyranose
• 191667-37-5
• C₂₅H₄₂N₂O₁₉
• 674.603
• .

• 5-Hexen-1-ol, 4-methylbenzenesulfonate
• 18922-06-0
• C₁₃H₁₈O₃S
• .

• 5-Pyrimidinecarboxylic acid,1,2,3,4-tetrahydro-6-methyl-4-(2-methylphenyl)-2-oxo-, methyl ester
• 188780-27-0
• C₁₄H₁₆N₂O₃
• .

• 5-Isoquinolinesulfonamide, N-(4-aminobutyl)-1-chloro-
• 105628-13-5
• C₁₃H₁₆ClN₃O₂S
• .

• 5-methyl-1,3,4-oxathiazol-2-one
• 17452-74-3
• C₃H₃NO₂S
• 117.1264
• .

• 5-Thiazolecarboxylic acid,2-[4-[[(3,4-dimethoxyphenyl)methylene]amino]phenyl]-4-methyl-, ethylester, monohydrochloride
• 64209-89-8
• C₂₂H₂₂N₂O₄S·ClH
• .

• 5H-Furo[3,2-g][1]benzopyran-5-ol,6,7-dihydro-6-(6-methoxy-1,3-benzodioxol-5-yl)-
• 63902-31-8
• C₁₉H₁₆O₆
• .

• 5-Thia-2,7-diaza-6-phosphadec-9-enoic acid,6-methoxy-3-oxo-2-(2-propenyl)-, methyl ester, 6-oxide
• 63891-70-3
• C₁₁H₁₉N₂O₅PS
• .

• 5'-O-(N-acetyl-L-phenylalanyl)adenosine
• 34996-32-2
• C₂₁H₂₄N₆O₆
• 456.4519
• .

• 5'-Adenylic acid, 2',3'-dideoxy-,bis[1-[4-(acetyloxy)phenyl]-3-ethoxy-3-oxopropyl] ester
• 139747-05-0
• C₃₆H₄₂N₅O₁₃P
• .

• 5,8-Quinolinedione, 6-[4-(dibutylamino)-2-hydroxyphenyl]-
• 139750-42-8
• C₂₃H₂₆N₂O₃
• .

• 5-(2-ethoxyphenyl)-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
• 139756-30-2
• C₁₆H₁₈N₄O₂
• 298.3397
• .

• 5-Isoxazolecarboxylic acid, 3-phenyl-4-(trifluoromethyl)-, methyl ester
• 104721-34-8
• C₁₂H₈F₃NO₃
• .

• 5-Isoxazolecarboxylic acid, 4-(heptafluoropropyl)-3-phenyl-, methylester
• 104721-38-2
• C₁₄H₈F₇NO₃
• .

• 5-Isoxazolecarboxylic acid, 3-(4-chlorophenyl)-4-(trifluoromethyl)-,methyl ester
• 104721-45-1
• C₁₂H₇ClF₃NO₃
• .

• 5-Isoxazolecarboxylic acid, 3-(4-methylphenyl)-4-(trifluoromethyl)-,methyl ester
• 104721-51-9
• C₁₃H₁₀F₃NO₃
• .

• 5-Heptynoic acid,7-[4-(hydroxymethyl)-1-(1-methylethyl)-2-oxo-3-pyrrolidinyl]-, methylester, trans-
• 62311-06-2
• C₁₆H₂₅NO₄
• .

• 5-Heptynoic acid,7-[4-(3-hydroxy-1-nonenyl)-1-methyl-2-oxo-3-pyrrolidinyl]-
• 62311-28-8
• C₂₁H₃₃NO₄
• .

• 5-Benzofuranmethanol,2,3-dihydro-2,7-dimethyl-a-[1-[(phenylmethyl)amino]ethyl]-,hydrochloride
• 62316-00-1
• C₂₀H₂₅NO₂·ClH
• .

• 5-Benzofuranmethanol,2,3-dihydro-2,2-dimethyl-a-[1-[(3-phenylpropyl)amino]ethyl]-
• 62316-03-4
• C₂₂H₂₉NO₂
• .

• 5-Hexen-3-one, 4,4-dichloro-2-methyl-
• 64362-11-4
• C₇H₁₀Cl₂O
• .

• 5-Isobenzofurancarboxamide,1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-
• 64372-56-1
• C₂₀H₂₃FN₂O₂
• .