• 5-hydroxy-6,10,14-trimethyl-3-methylidene-3a,4,5,6,7,8,11,12,13,14,15,15a-dodecahydro-6,15-epoxycyclotetradeca[b]furan-2(3H)-one
• 81739-98-2
• C₂₀H₃₀O₄
• 334.4498
• .

• 5-Octyn-4-ol, 8-[(tetrahydro-2H-pyran-2-yl)oxy]-
• 81750-96-1
• C₁₃H₂₂O₃
• .

• 5-Octen-4-ol, 8-[(tetrahydro-2H-pyran-2-yl)oxy]-, (E)-
• 81750-97-2
• C₁₃H₂₄O₃
• .

• 5-bromo-4-iodopyrimidine
• 898559-22-3
• C₄H₂BrIN₂
• 284.8805
• .

• 5-Isobenzofurancarbonitrile,3-(5-fluoro-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-1,3-dihydro-1-oxo-
• 81820-69-1
• C₁₃H₆FN₃O₄
• .

• 5-amino-1,2-dihydroacenaphthylen-1-ol
• 81851-72-1
• C₁₂H₁₁NO
• 185.2218
• .

• 5-{[(4-chlorophenyl)sulfanyl]methyl}-4-(4-methoxyphenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione
• 81863-77-6
• C₁₆H₁₄ClN₃OS₂
• 363.8849
• .

• 5-{[(2S)-2-hydroxy-3-(propan-2-ylamino)propyl]oxy}naphthalen-1-ol
• 81907-79-1
• C₁₆H₂₁NO₃
• 275.3428
• .

• 5-cyclopropyl-1-methyl-4-oxo-6-oxabicyclo[3.1.0]hex-2-yl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate
• 81910-11-4
• C₁₇H₂₀Cl₂O₄
• 359.2443
• .

• 5-Isothiazolecarbonitrile, 3,4-dibromo-
• 81910-94-3
• C₄Br₂N₂S
• .

• 5-[2-(tert-butylamino)-1-hydroxyethyl]benzene-1,3-diyl bis{4-[(2,2-dimethylpropanoyl)oxy]benzoate}
• 81911-38-8
• C₃₆H₄₃NO₉
• 633.7279
• .

• 5-cyclopropyl-1-methyl-4-oxo-6-oxabicyclo[3.1.0]hex-2-yl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate
• 81924-86-9
• C₁₉H₂₆O₄
• 318.4073
• .

• 5,5',6,6',7,7',8,8'-octahydro-4H,4'H-2,2'-bi[1]benzothieno[2,3-d][1,3]oxazine-4,4'-dione
• 81930-84-9
• C₂₀H₁₆N₂O₄S₂
• 412.482
• .

• 5-nitrofuran-2-carboxylic acid - tributylstannanyl (1:1)
• 81938-32-1
• C₁₇H₃₀NO₅Sn
• 447.1338
• .

• 5,5a-dihydroxy-1,1,7,9-tetramethyl-11-oxo-4-[(tetradecanoyloxy)methyl]-1a,2,5,5a,6,9,10,10a-octahydro-1H-2,8a-methanocyclopenta[a]cyclopropa[e][10]annulen-6-yl tetradecanoate
• 81943-55-7
• C₄₈H₈₀O₇
• 769.1446
• .

• 5a-hydroxy-1,1,7,9-tetramethyl-11-oxo-4-[(propanoyloxy)methyl]-1a,2,5,5a,6,9,10,10a-octahydro-1H-2,8a-methanocyclopenta[a]cyclopropa[e][10]annulene-5,6-diyl dipropanoate
• 81943-57-9
• C₂₉H₄₀O₈
• 516.6231
• .

• 5-(hex-5-en-1-yl)-2-(non-8-en-1-yl)-3,4-dihydro-2H-pyrrole
• 81943-74-0
• C₁₉H₃₃N
• 275.472
• .

• 5-Hexenoic acid, 2-(difluoromethyl)-
• 81982-39-0
• C₇H₁₀F₂O₂
• .

• 5-Hexenoyl chloride, 2-(difluoromethyl)-
• 81982-40-3
• C₇H₉ClF₂O
• .

• 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[[(aminocarbonyl)oxy]methyl]-7-[(5-amino-5-carboxy-1-oxopentyl)amino]-7-methoxy-8-oxo-, [6R-(6α,7α)]-, compd. with N,N'-bis(phenylmethyl)-1,2-ethanediamine (2:1)
• 81988-11-6
• C₁₆H₂₂N₄O₉S·1/₂C₁₆H₂₀N<
• 279-870-0
• .

• 5-bromo-6-[(E)-2-nitroethenyl]-1,3-benzodioxole
• 82040-72-0
• C₉H₆BrNO₄
• 272.0522
• .

• 5H-Benzo[a]phenoxazin-5-one, 6-bromo-10-chloro-
• 82071-22-5
• C₁₆H₇BrClNO₂
• .

• 5H-Benzo[a]phenoxazin-5-one, 6-bromo-10-methyl-
• 82071-23-6
• C₁₇H₁₀BrNO₂
• .

• 5-Isobenzofurancarbonitrile, 3-bromo-1,3-dihydro-1-oxo-
• 82104-75-4
• C₉H₄BrNO₂
• .

• 5,6-bis(4-methoxyphenyl)-3-phenoxy-1,2,4-triazine 1-oxide
• 82123-03-3
• C₂₃H₁₉N₃O₄
• 401.4147
• .

• 5,6-bis(4-methoxyphenyl)-N-(1-methylethyl)-1,2,4-triazin-3-amine 1-oxide
• 82123-07-7
• C₂₀H₂₂N₄O₃
• 366.4137
• .

• 5,6-bis(4-methoxyphenyl)-3-phenoxy-1,2,4-triazine 2-oxide
• 82123-15-7
• C₂₃H₁₉N₃O₄
• 401.4147
• .

• 5-Benzofurancarbonitrile, 2-(4-chlorophenyl)-3-(trifluoromethyl)-
• 821770-06-3
• C₁₆H₇ClF₃NO
• .

• 5-(2-nitro-1H-imidazol-1-yl)pentan-1-ol
• 82184-74-5
• C₈H₁₃N₃O₃
• 199.2071
• .

• 5-(4,5-dimethoxy-2-methylnaphthalen-1-yl)-8-methoxy-1,2,3-trimethyl-1,2,3,4-tetrahydroisoquinolin-6-ol
• 82189-88-6
• C₂₆H₃₁NO₄
• 421.5286
• .

• 5-[2-(dichloroamino)-2-methylpropoxy]-5-oxopentanoic acid
• 82224-88-2
• C₉H₁₅Cl₂NO₄
• 272.1257
• .

• 5,6-bis(4-fluorophenyl)-3-oxo-2,3-dihydropyridazine-4-carbonitrile
• 82231-95-6
• C₁₇H₉F₂N₃O
• 309.2697
• .

• 5,6-dichloro-1-(3-O-methyl-beta-D-ribofuranosyl)-1H-benzimidazole
• 82280-35-1
• C₁₃H₁₄Cl₂N₂O₄
• 333.1673
• .

• 5-(trifluoromethyl)-1,2,3,3a,6,7-hexahydro-5H-naphtho[1,2-d]pyrrolo[2,1-b][1,3]oxazine
• 82281-43-4
• C₁₆H₁₆F₃NO
• 295.2995
• .

• 5-chloro-1-{1-[3-(5-hydroxy-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl]piperidin-4-yl}-1,3-dihydro-2H-benzimidazol-2-one
• 82294-72-2
• C₂₂H₂₄ClN₅O₃
• 441.9107
• .

• 5(4H)-Oxazolone, 4-[(3-methoxyphenyl)methylene]-2-phenyl-, (Z)-
• 82301-50-6
• C₁₇H₁₃NO₃
• .

• 5(4H)-Oxazolone, 4-(1,3-benzodioxol-5-ylmethylene)-2-phenyl-, (Z)-
• 82301-51-7
• C₁₇H₁₁NO₄
• .

• 5(4H)-Oxazolone, 4-[(4-methylphenyl)methylene]-2-phenyl-
• 82309-33-9
• C₁₇H₁₃NO₂
• .

• 5(4H)-Isothiazolone
• 82357-88-8
• C₃H₃NOS
• .

• 5(2H)-Isothiazolone
• 82357-89-9
• C₃H₃NOS
• .

• 5-nitro-N-(phenylcarbamothioyl)furan-2-carboxamide
• 82366-67-4
• C₁₂H₉N₃O₄S
• 291.2826
• .

• 5-Isothiazolecarboxylic acid, 4-amino-3-(2-thienyl)-
• 82424-27-9
• C₈H₆N₂O₂S₂
• .

• 5-Isothiazolecarboxylic acid, 4-amino-3-(3-pyridinyl)-, methyl ester
• 82424-29-1
• C₁₀H₉N₃O₂S
• .

• 5-Isothiazolecarboxylic acid, 4-amino-3-(3-fluorophenyl)-, methyl ester
• 82424-56-4
• C₁₁H₉FN₂O₂S
• .

• 5-Isothiazolecarboxylic acid, 4-amino-3-(3-chlorophenyl)-, methyl ester
• 82424-66-6
• C₁₁H₉ClN₂O₂S
• .

• 5-Isothiazolecarboxylic acid, 4-amino-3-phenyl-
• 82424-75-7
• C₁₀H₈N₂O₂S
• .

• 5,5a-dihydroxy-4-(hydroxymethyl)-1,1,7,9-tetramethyl-11-oxo-1a,2,5,5a,6,9,10,10a-octahydro-1H-2,8a-methanocyclopenta[a]cyclopropa[e][10]annulen-6-yl decanoate
• 82425-34-1
• C₃₀H₄₆O₆
• 502.6826
• .

• 5-hydroxy-7-(hydroxymethyl)-1,3,4,4a,5,7a-hexahydrocyclopenta[c]pyran-1-yl hexopyranoside
• 82426-96-8
• C₁₅H₂₄O₉
• 348.3457
• .

• 5-methyl-1,3,4,6,9b-pentaazaphenalen-2-amine
• 82501-06-2
• C₉H₈N₆
• 200.2
• .

• 5-(2-hydroxy-5-oxo-4-{[(2E)-4,6,8-trimethylnona-2,7-dienoyl]amino}-7-oxabicyclo[4.1.0]hept-3-en-2-yl)pentanoic acid
• 82516-67-4
• C₂₃H₃₃NO₆
• 419.5112
• .