• Olean-12-en-28-oicacid, 3-(a-L-arabinopyranosyloxy)-23-hydroxy-,(3b,4a)-
• 17184-21-3
• C35H56 O8
• 0
• .

• Oxirane,2-(bromomethyl)-2-phenyl-
• 64398-73-8
• C9H9 Br O
• 213.0712
• .

• Oxirane,methyl-,polymers,polymer with oxirane,mono(nonylphenyl) ether
• 37251-69-7
• 0
• .

• Octadecanoic acid,5-oxo-
• 16694-31-8
• C18H34 O3
• 0
• .

• Oils, currant, Ribesnigrum
• 97676-19-2
• 142.09
• .

• Olean-12-en-3-ol,3-hexadecanoate, (3b)-
• 5973-06-8
• C46H80 O2
• 665.13
• .

• Osmium, isotope of mass185
• 15766-50-4
• Os
• 184.954
• .

• Olean-12-en-28-oicacid, 21-[(2-O-b-D-glucopyranosyl-b-D-glucopyranosyl)oxy]-3,23-dihydroxy-,(3b,4a,21b)-
• 103766-07-0
• C42H68 O15
• 0
• .

• Octadecanoic acid,12-hydroxy-, barium salt (2:1)
• 21598-22-1
• C18H36 O3 . 1/2 Ba
• 244-469-1
• 736.2644
• .

• Oxazolo[4,5-b]pyridin-2(3H)-one,3-[4-(4-phenyl-1-piperazinyl)butyl]-
• 146529-61-5
• C20H24 N4 O2
• 352.4302
• .

• Oxidase, diamine
• 9001-53-0
• NULL
• 232-613-6
• 0
• .

• Oxazolidine,5-methyl-3-nitroso-
• 35631-27-7
• C4H8 N2 O2
• 116.14
• .

• Oxayohimban-16-carboxylicacid, 16,17-didehydro-10-methoxy-19-methyl-, hydrazide, (19a)- (9CI)
• 72407-38-6
• C21H26 N4 O3
• 0
• .

• Octadecanoic acid,9-(sulfooxy)-, 1-methyl ester, sodium salt (1:1)
• 139-99-1
• C19H38 O6 S . Na
• 205-389-2
• 416.54825
• .

• Octadecanoic acid,2-hydroxyethyl ester
• 111-60-4
• C₂₀H₄₀O₃
• 203-886-9
• 328.53
• .

• Octanoic acid,1,1'-[(1R)-1-[(phosphonooxy)methyl]-1,2-ethanediyl] ester
• 102731-57-7
• C19H37 O8 P
• 0
• .

• Oxacyclodocosa-4,7,9,11,15,17,19-heptaene-2,13-dione,22-[12-[(6-deoxy-2,4-di-O-methyl-b-D-galactopyranosyl)oxy]-2,11-dihydroxy-1,3-dimethyl-4-oxo-5,7,9-tridecatrien-1-yl]-6,14-dihydroxy-5,8,12-trimethyl-
• 11006-66-9
• C47H66 O13
• 0
• .

• Octanoic acid,1,1'-(1-methyl-1,2-ethanediyl) ester
• 7384-98-7
• C19H36 O4
• 230-962-9
• 328.48674
• .

• Octanoic acid,1,1'-(1,2-ethanediyl) ester
• 627-86-1
• C18H34 O4
• 314.46
• .

• Olean-12-en-28-oicacid, 23-(acetyloxy)-3-(b-D-glucopyranosyloxy)-2-hydroxy-, O-6-deoxy-a-L-mannopyranosyl-(1®2)-O-[b-D-glucopyranosyl-(1®6)]-b-D-glucopyranosyl ester, (2b,3b,4a)- (9CI)
• 163658-54-6
• C56H90 O25
• .

• Oxirane,methyl-,polymers,polymer with oxirane,mono-(9Z)-9-octadecenoate
• 9009-39-6
• C₂₃H₄₄O₄
• 0
• .

• Oxazole,4,5-dihydro-4-(methoxymethyl)-2-methyl-5-phenyl-, (4S,5S)-
• 52075-14-6
• C12H15 N O2
• 257-641-6
• 205.25
• .

• Oxoniumyl
• 56583-62-1
• H2O
• 0
• .

• Oxiranecarboxylic acid,3-[[[2-[[4-[(aminoiminomethyl)amino]butyl]amino]-1-[(4-hydroxyphenyl)methyl]-2-oxoethyl]amino]carbonyl]-(9CI)
• 106396-24-1
• C18H25 N5 O6
• 407.421
• .

• Octadecanoic acid,2-butoxyethyl ester
• 109-38-6
• C₂₄H₄₈O₃
• 203-668-3
• 384.64
• .

• Oils, amyris
• 8015-65-4
• 0
• .

• o-Toluidine,4,4'-(pentamethylenedioxy)di-, dihydrochloride (6CI)
• 110194-72-4
• C19H26 N2 O2 . 2 Cl H
• 387.3438
• .

• Oxazolidine,3-methyl-2-phenyl-
• 1630-62-2
• C10H13 N O
• 163.2163
• .

• Oxidase, xanthine
• 9002-17-9
• C₁₈H₂₉N₅O₁₀S₂
• 232-657-6
• 0
• .

• Olean-12-en-28-oicacid, 3,23-dihydroxy-, b-D-glucopyranosyl ester, (3b,4b)- (9CI)
• 146728-78-1
• C36H58 O9
• 0
• .

• Oplopanone
• 1911-78-0
• C₁₅H₂₆O₂
• 0
• .

• Oils, marjoram, Spanish
• 8016-33-9
• 0
• .

• Oxirane,2,2'-[methylenebis(2,1-phenyleneoxymethylene)]bis-
• 54208-63-8
• C19H20 O4
• 259-026-8
• 312.3597
• .

• Octadecanoic acid,methyl ester, reaction products with1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethyl-4-piperidinol
• 300711-92-6
• 0
• .

• Octanoic acid,4-methyl-2-oxo-2H-1-benzopyran-7-yl ester
• 20671-66-3
• C18H22 O4
• 302.3649
• .

• Oils, Acorus calamus
• 8015-79-0
• 0
• .

• Oxiranebutanoic acid,3-(9-hydroxy-1,3,5,7-tetradecatetraenyl)-, [2S-[2a,3b(1E,3E,5Z,7E,9R*)]]- (9CI)
• 94235-42-4
• C20H30 O4
• 0
• .

• Oxirane,2,3-bis(4-ethoxyphenyl)-2,3-diethyl-
• 78969-61-6
• C22H28 O3
• 0
• .

• Oxirane,2-[[2-(ethenyloxy)ethoxy]methyl]-
• 16801-19-7
• C7H12 O3
• 144.1684
• .

• Octacosanoic acid
• 506-48-9
• C₂₈H₅₆O₂
• 208-041-8
• 424.743
• .

• Olean-12-ene-28,29-dioicacid, 3-[(3-O-b-D-glucopyranosyl-a-L-arabinopyranosyl)oxy]-23-hydroxy-,28-b-D-glucopyranosyl 29-methylester, (3b,4a,20b)- (9CI)
• 116107-23-4
• C48H76 O20
• .

• Octadecanoic acid,(2R,3R)-2-[(2,2-dichloroacetyl)amino]-3-hydroxy-3-(4-nitrophenyl)propyl ester
• 16255-48-4
• C₂₉H₄₆Cl₂N₂O₆
• 240-363-4
• 589.5913
• .

• Oxirane, 2-methyl-,polymer with oxirane, monobutyl ether
• 9038-95-3
• C4 H10 O
• 248.35902
• .

• Olean-12-en-28-oicacid, 3-(a-L-arabinopyranosyloxy)-,O-6-deoxy-a-L-mannopyranosyl-(1®4)-O-6-O-acetyl-b-D-glucopyranosyl-(1®6)-b-D-glucopyranosyl ester, (3b)- (9CI)
• 114912-35-5
• C55H88 O22
• 0
• .

• Octanoic acid,8-chloro-2,2,3,3,4,4,5,5,6,6,7,7,8,8-tetradecafluoro-, ammonium salt (1:1)
• 16557-94-1
• C8H Cl F14 O2 . H3 N
• 240-624-2
• 447.5535048
• .

• Oleanan-29-al, 3-[(O-b-D-glucopyranosyl-(1®2)-O-[O-b-D-glucopyranosyl-(1®4)-O-[b-D-xylopyranosyl-(1®2)]-b-D-glucopyranosyl-(1®4)]-b-L-arabinopyranosyl)oxy]-13,28-epoxy-16-hydroxy-,(3b,16a,20b)- (9CI)
• 128741-24-2
• C58H94 O27
• .

• Oxirane, methyl-, polymer with oxirane, mono(hydrogen sulfate), dodecyl ether, ammonium salt
• 65423-84-9
• 0
• .

• Oleana-9(11),12-dien-29-oicacid, 3,21,23-trihydroxy-, (3b,4b,20a,21a)- (9CI)
• 26569-28-8
• C30H46 O5
• 0
• .

• Oils, chamomile
• 8015-92-7
• 0
• .

• Octanoic acid, nonylester
• 7786-48-3
• C17H34 O2
• 232-099-3
• 270.45066
• .