• Oxirane,2-[(3-pentadecylphenoxy)methyl]-
• 16611-96-4
• C24H40 O2
• 240-661-4
• 360.5732
• .

• Octadecanoic acid,barium zinc salt (1:?:?)
• 17251-92-2
• C18H36 O2 . x Ba . x Zn
• .

• OMS 3036 (9CI)
• 144638-16-4
• .

• Osmolite
• 102257-18-1
• 0
• .

• Oleana-11,13(18)-dien-28-oicacid, 3-hydroxy-23-oxo-, O-6-deoxy-a-L-mannopyranosyl-(1®4)-O-b-D-glucopyranosyl-(1®6)-b-D-glucopyranosyl ester, (3a,4a)- (9CI)
• 166412-86-8
• C48H74 O18
• .

• Oxireno[9,10]cyclodeca[1,2-b]furan-9(1aH)-one,2,3,6,7,7a,8,10a,10b-octahydro-7-hydroxy-1a,5-dimethyl-8-methylene-,(1aR,4E,7R,7aR,10aS,10bS)-
• 156856-33-6
• C15H20 O4
• .

• Oxazole,2,5-diethyl-4-methyl-
• 40953-15-9
• C8H13 N O
• 255-161-1
• 139.19492
• .

• Octanoic acid,4,6-dimethyl-, methyl ester
• 2553-96-0
• C11H22 O2
• 0
• .

• Oxazolo[4,5-b]pyridin-2(3H)-one,3-[[4-(2-methoxyphenyl)-1-piperazinyl]methyl]-
• 146529-56-8
• C18H20 N4 O3
• 340.3764
• .

• Octadecanoic acid,12-hydroxy-, calcium lithium salt (1:?:?)
• 58478-76-5
• C18H36 O3 . x Ca . x Li
• 261-279-4
• 945.4251
• .

• Oxetane,2,2,3,4,4-pentafluoro-
• 144109-03-5
• C3H F5 O
• 148.031456
• .

• Offretite
• 12417-81-1
• .

• Ornithine,N2-(N-carboxy-L-valyl)-N5-(p-tolylsulfonyl)-, N-benzyl methyl ester, L- (8CI)
• 6461-15-0
• C26H35 N3 O7 S
• 475.0233
• .

• Olean-12-en-28-oicacid, 3,15,21,22,29-pentahydroxy-, 28,15-lactone, (3b,15b,20b,21b,22a)- (9CI)
• 144425-18-3
• C30H46 O6
• .

• Oxirane, 2-ethyl-,homopolymer, mono[N-(2-aminoethyl)carbamate], mixed ditetrapropylenephenyl andtetrapropylenephenyl ethers
• 122384-83-2
• .

• Oxiranecarboxylic acid,2,3-dimethyl-,5-(acetyloxy)-2,3,3a,4,5,7,9a,9b-octahydro-6,9-dimethyl-3-methylene-2,7-dioxoazuleno[4,5-b]furan-4-ylester (9CI)
• 115547-14-3
• C22H24 O8
• .

• Olean-12-en-29-oicacid, 3,11-dioxo-, (20b)-
• 7020-50-0
• C30H44 O4
• 230-299-5
• 468.66796
• .

• Octadecanoic acid,9,10-dihydroxy-, potassium salt (1:1)
• 37734-46-6
• C18H36 O4 . K
• 253-645-7
• 354.5664
• .

• Octanoic acid,8-(nonylseleno)-
• 28270-66-8
• C17H34 O2 Se
• .

• Oxazolo[5,4-b]pyridin-2(1H)-one,1-(4-bromobutyl)-
• 142714-74-7
• C10H11 Br N2 O2
• 271.1105
• .

• Oxazolidinethione
• 28470-84-0
• C3H5 N O S
• 0
• .

• Oxirane,2-(2-methylpropyl)-
• 23850-78-4
• C6H12 O
• 245-911-6
• 100.1589
• .

• Octanediamide,N1,N8-bis(1,6-dihydro-1-methyl-6-oxo-3-pyridinyl)-
• 148805-97-4
• C20H26 N4 O4
• 0
• .

• Oxireno[3,4]benzo[1,2-f]quinoline,1a,2,3,9b-tetrahydro-
• 119143-42-9
• C13H11 N O
• 197.2325
• .

• Octane,1,1,3-triethoxy-
• 54305-98-5
• C14H30 O3
• 259-084-4
• 246.3862
• .

• Octanoic acid,(octahydro-4,7-methano-1H-indene-5,?-diyl)bis(methylene) ester (9CI)
• 122359-47-1
• C28H48 O4
• 310-186-8
• 448.67832
• .

• Olean-12-en-28-oicacid, 3-[(6-O-a-L-arabinopyranosyl-b-D-glucopyranosyl)oxy]-16-hydroxy-,O-3-O-acetyl-b-D-xylopyranosyl-(1®4)-O-6-deoxy-a-L-mannopyranosyl-(1®2)-a-L-arabinopyranosyl ester, (3b,16a)- (9CI)
• 160472-88-8
• C59H94 O26
• .

• Octadecanoic acid,10-(acetyloxy)-9-hydroxy-, (R*,R*)- (9CI)
• 13980-32-0
• C20H38 O5
• 237-767-8
• 358.51272
• .

• Oxazole,2,5-dimethyl-4-[2-(methylthio)ethyl]-
• 63892-74-0
• C8H13 N O S
• 171.2599
• .

• Octadecanoic acid,bismuth(3+) salt (3:1)
• 13283-68-6
• C18H36 O2 . 1/3 Bi
• 236-296-5
• 1059.38828
• .

• Oxirane,2-[(2-nonylphenoxy)methyl]-
• 94159-62-3
• C18H28 O2
• 303-243-3
• 276.41372
• .

• Oxireno[h]quinoline-2,3-diol,1a,2,3,7b-tetrahydro-, (1aR,2R,3S,7bS)-rel-
• 142078-76-0
• C9H9 N O3
• 179.1727
• .

• Octane, epoxy-
• 26637-94-5
• C8H16 O
• 243.1338
• .

• Osmium hydroxide oxide(Os(OH)4O2)
• 16984-68-2
• H4O6 Os
• .

• Oleanan-29-al,3-[(O-6-deoxy-a-L-mannopyranosyl-(1®2)-O-b-D-glucopyranosyl-(1®4)-O-[b-D-glucopyranosyl-(1®2)]-a-L-arabinopyranosyl)oxy]-13,28-epoxy-16-hydroxy-,(3b,16a,20b)-
• 151625-81-9
• C53H86 O22
• 0
• .

• O-Benzyl-L-lysine bis(toluene-p-sulphonate)
• 16259-78-2
• C₂₇H₃₆N₂O₈S₂
• 240-366-0
• 580.71
• .

• Octadecanoic acid,3-hydroxy-2-[(1-oxotetradecyl)oxy]propyl ester, (S)- (9CI)
• 85606-67-3
• C35H68 O5
• 0
• .

• Octanoic acid,2-(2-propyn-1-yl)-
• 96017-59-3
• C11H18 O2
• 182.26
• .

• Oxazole,2,5-bis(azidophenyl)- (9CI)
• 111264-01-8
• C15H9 N7 O
• .

• Octadecanoic acid,9,10,12,13,15,16-hexabromo-
• 4167-08-2
• C18H30 Br6 O2
• 224-023-2
• 757.85
• .

• Olean-12-en-28-oicacid, 16-[(2-O-a-L-arabinopyranosyl-b-D-glucopyranosyl)oxy]-3-(b-D-glucopyranosyloxy)-2,23-dihydroxy-,3,4-di-O-acetyl-a-L-arabinopyranosylester, (2b,3b,4a,16a)- (9CI)
• 142846-86-4
• C56H88 O26
• .

• Oxirane,(2,2,2-trichloroethyl)-, homopolymer (9CI)
• 25655-23-6
• C4 H5 Cl3 O
• .

• Omnadin (8CI,9CI)
• 9014-03-3
• 0
• .

• Oxirane, 2,3-dipropyl-,(2R,3S)-rel-
• 1439-06-1
• C8H16 O
• 128.21204
• .

• Olean-12-en-28-oicacid, 16-[(2-O-a-L-arabinopyranosyl-b-D-glucopyranosyl)oxy]-3-(b-D-glucopyranosyloxy)-2,23-dihydroxy-,2,4-di-O-acetyl-a-L-arabinopyranosylester, (2b,3b,4a,16a)- (9CI)
• 142846-87-5
• C56H88 O26
• .

• Osmium, isotope of mass194
• 15766-57-1
• Os
• 193.9652
• .

• Oxacyclohexadeca-3,11,13-triene-2,10-dione,15-[[(6-deoxy-b-D-allopyranosyl)oxy]methyl]-16-ethyl-15-hydroxy-5,7,9-trimethyl-6-[[3,4,6-trideoxy-3-(dimethylamino)-b-D-xylo-hexopyranosyl]oxy]-,(3E,5S,6S,7S,9R,11E,13E,15S,16R)- (9CI)
• 129046-68-0
• C35H57 N O12
• .

• Oxirane,2,2'-[methylenebis[[4-[1-methyl-1-[4-(oxiranylmethoxy)phenyl]ethyl]-2,1-phenylene]oxymethylene]]bis-(9CI)
• 94134-27-7
• C43H48 O8
• 302-795-2
• 692.83642
• .

• Octanediimidamide,dihydrochloride (9CI)
• 63869-18-1
• C8H18 N4 . 2 Cl H
• 0
• .

• Octapeptin, N-lysylderiv. (9CI)
• 102647-59-6
• .