• Oxirane,2-(dichloromethyl)-
• 3083-24-7
• C3H4 Cl2 O
• 0
• .

• Oxirane,2-[[4-(phenylmethyl)phenoxy]methyl]-
• 5296-38-8
• C16H16 O2
• 0
• .

• Ondansetron
• 99614-02-5
• C₁₈H₁₉N₃O
• 293.37
• .

• Oxirane,2-(methoxymethyl)-
• 930-37-0
• C4H8 O2
• 213-216-7
• 88.12
• .

• Octadecanoic acid,trimethylsilyl ester
• 18748-91-9
• C21H44 O2 Si
• 242-553-2
• 356.65836
• .

• Octadecadienoic acid,hydroxy-, methyl ester (8CI,9CI)
• 11068-01-2
• C19 H38 O3
• 310.4715
• .

• Oils, valerian
• 8008-88-6
• C15H26O
• 232-501-7
• 222.37
• .

• Oxygen fluoride (OF)(6CI,7CI,8CI,9CI)
• 12061-70-0
• FO
• 34.9978
• .

• Oxireno[4,4a]-2-benzopyrano[6,5-g][2]benzoxepin-3,5,9(3aH,4bH,6H)-trione,1-(3-furanyl)decahydro-11,12-dihydroxy-4b,7,7,11a,13a-pentamethyl-,(1S,3aS,4aR,4bR,6aR,11S,11aR,11bR,12S,13aS)- (9CI)
• 123690-74-4
• C26H32 O9
• .

• O-Ethyl thiocarbamate
• 625-57-0
• C₃H₇NOS
• 0
• .

• Octanoic acid,manganese salt (1:?)
• 6535-19-9
• C8H16 O2 . x Mn
• 229-437-7
• 341.345049
• .

• Octanoic acid,(2R,2aS,3S,4S,5aS,6R,9R,9aR,9bR,10S,12Z)-6-(acetyloxy)-2a,3,4,5,5a,6,7,9,9a,9b-decahydro-10-hydroxy-4,6,9,13-tetramethyl-2,9-[2]penteno-2H-furo[2,3,4-ef][3]benzoxepin-3-ylester, rel- (9CI)
• 149725-03-1
• C30H48 O7
• .

• Octanoic acid,6-(acetylthio)-8-[[2-[[(4-amino-2-methyl-5-pyrimidinyl)methyl]formylamino]-1-(2-hydroxyethyl)-1-propen-1-yl]dithio]-,methyl ester
• 137-86-0
• C23H36 N4 O5 S3
• 544.81
• .

• Oxomemazine
• 3689-50-7
• C₁₈H₂₂N₂O₂S
• 222-996-8
• 330.48
• .

• Octadecanoic acid,1-carboxyethyl ester, sodium salt (1:1)
• 188786-01-8
• C21H40 O4 . Na
• 0
• .

• Olean-12-en-28-oicacid, 3-[[2-O-[4-O-[(3S)-4-carboxy-3-hydroxy-3-methyl-1-oxobutyl]-a-L-arabinopyranosyl]-b-D-glucopyranosyl]oxy]-2,23-dihydroxy-,28-(O-b-D-xylopyranosyl-(1®3)-O-6-deoxy-a-L-mannopyranosyl-(1®2)-a-L-arabinopyranosyl) ester, intramol. 4''(3)®4''(28)-ester, (2b,3b,4a)-
• 102040-03-9
• C₆₃H₉₈O₂₉
• 1319.43
• .

• Oxirane,2-[(1-naphthalenyloxy)methyl]-, (2R)-
• 56715-28-7
• C13H12 O2
• 0
• .

• Oxirane, 2-pentadecyl-
• 22092-38-2
• C17H34 O
• 244-772-9
• 254.45126
• .

• Oxazolo[5,4-b]pyridin-2(1H)-one,1-[3-[4-(4-fluorophenyl)-1-piperazinyl]-2-methylpropyl]-
• 162254-22-0
• C20H23 F N4 O2
• 370.4206
• .

• Oils, galangal
• 8024-40-6
• 0
• .

• Octadecanoic acid,9-(sulfooxy)-, 1-(1-methylethyl) ester, sodium salt (1:1)
• 14350-72-2
• C21H42 O6 S . Na
• 238-301-6
• 444.60141
• .

• Oils, caraway
• 8000-42-8
• 0
• .

• Octane,1,1,8,8-tetramethoxy-
• 7142-84-9
• C12H26 O4
• 234.33
• .

• Oxytocin,1-(3-mercapto-L-valine)-2-D-phenylalanine-4-L-threonine-8-L-ornithine- (9CI)
• 136429-81-7
• C43H68 N12 O11 S2
• 0
• .

• Olean-12-en-28-oicacid,3,23-[[(1R)-4,4',5,5',6,6'-hexahydroxy[1,1'-biphenyl]-2,2'-diyl]bis(carbonyloxy)]-2,24-dihydroxy-,b-D-glucopyranosyl ester, (2a,3b,4a)- (9CI)
• 116787-79-2
• C50H64 O19
• 969.0318
• .

• Oxirane,2,3-dimethyl-2-phenyl-, (2R,3R)-rel-
• 16127-54-1
• C10H12 O
• 148.20168
• .

• Ornithine,N2-[N-[N-[N5-carboxy-N2-[N-(N5-carboxy-N2-formyl-L-ornithyl)-L-seryl]-L-ornithyl]-L-seryl]-L-seryl]-N5-(p-tolylsulfonyl)-,dibenzyl 1-methyl ester, L- (8CI)
• 6456-38-8
• C49H67 N9 O17 S
• 282.3403
• .

• Oxiranecarboxylic acid,2,3-dimethyl-,(3aR,4R,5R,6R,9Z,11aR)-2,3,3a,4,5,6,7,8,11,11a-decahydro-4-hydroxy-6,10-dimethyl-3-methylene-2,8-dioxocyclodeca[b]furan-5-ylester, (2R,3R)- (9CI)
• 103425-22-5
• C20H26 O7
• 378.4162
• .

• Octadecane,1,12-bis(ethenyloxy)-
• 10403-71-1
• C22H42 O2
• 338.5677
• .

• Olean-12-en-28-oicacid,3,23-[[(1S)-4,4',5,5',6,6'-hexahydroxy[1,1'-biphenyl]-2,2'-diyl]bis(carbonyloxy)]-2-hydroxy-24-[(3,4,5-trihydroxybenzoyl)oxy]-,b-D-glucopyranosyl ester, (2a,3b,4a)- (9CI)
• 116787-88-3
• C57H68 O23
• .

• Octadecanoic acid,4-hydroxybutyl ester
• 15337-64-1
• C22H44 O3
• 239-372-6
• 356.58296
• .

• Oxayohimban-16-carboxylicacid, 16,17-didehydro-10,11-dimethoxy-19-methyl-, methyl ester,monohydrochloride, (3b,19a,20a)- (9CI)
• 63647-55-2
• C23H28 N2 O5 . Cl H
• 264-379-6
• 448.9398
• .

• Octadecanedioic acid
• 871-70-5
• C₁₈H₃₄O₄
• 314.46
• .

• Olean-12-en-28-oicacid, 3-[(3-O-b-D-glucopyranosyl-b-D-glucopyranosyl)oxy]-2,16,23-trihydroxy-,O-6-deoxy-a-L-mannopyranosyl-(1®3)-O-b-D-xylopyranosyl-(1®4)-O-6-deoxy-a-L-mannopyranosyl-(1®2)-6-deoxy-4-O-[3-[3-(3-hydroxy-1-oxobutoxy)-1-oxobutoxy]-1-oxobutyl]-b-D-galactopyranosyl ester, (2b,3b,4a,16a)- (9CI)
• 156250-53-2
• C77H124 O38
• .

• Olean-12-en-28-oicacid, 3-(b-D-arabinopyranosyloxy)-, (3b)- (9CI)
• 58163-30-7
• C35H56 O7
• 0
• .

• Octadecanoic acid,2-octyldodecyl ester
• 22766-82-1
• C38H76 O2
• 245-204-2
• 565.00884
• .

• Oils, cherry laurel
• 8000-44-0
• 0
• .

• Olean-12-en-28-oicacid, 3-(b-D-glucopyranosyloxy)-21,23-dihydroxy-,(3b,4a,21b)- (9CI)
• 152845-77-7
• C36H58 O10
• .

• Oxazolo[4,5-b]pyridin-2(3H)-one,3-[[4-(2-chlorophenyl)-1-piperazinyl]methyl]-
• 146529-60-4
• C17H17 Cl N4 O2
• 344.7955
• .

• Octadecanamide,N,N'-1,3-propanediylbis-
• 29417-02-5
• C39H78 N2 O2
• 607.0488
• .

• Olean-12-en-28-oicacid, 3-(acetyloxy)-27-(benzoyloxy)-, (3b)- (9CI)
• 102637-05-8
• C39H54 O6
• 0
• .

• Ozone
• 10028-15-6
• O3
• 233-069-2
• 48.00
• .

• Olean-12-ene-23,28-dioicacid, 2,3-dihydroxy-, 28-(6-O-b-D-glucopyranosyl-b-D-glucopyranosyl) ester, (2b,3b,4a)- (9CI)
• 29774-77-4
• C42H66 O16
• .

• Oxazolium,3,4-dimethyl-2-[2-(phenylamino)ethenyl]-, iodide (1:1)
• 21034-17-3
• C13H15 N2 O . I
• 244-158-0
• 342.17547
• .

• Octadecanoic acid,10-(acetyloxy)-9-hydroxy-, (R*,S*)- (9CI)
• 13980-33-1
• C20H38 O5
• 237-768-3
• 358.51272
• .

• Octacosanoic acid,2,4,6,8-tetramethyl-
• 5691-98-5
• C32H64 O2
• 0
• .

• Octanoic acid, coppersalt (1:?)
• 20543-04-8
• C8H16 O2 . x Cu
• 243-866-7
• 349.953
• .

• Oxirane,2-butyl-3-ethyl-
• 90482-62-5
• C8H16 O
• 291-865-5
• 128.21204
• .

• Oxazolo[5,4-b]pyridin-2(1H)-one,1-[6-[4-(4-fluorophenyl)-1-piperazinyl]hexyl]-
• 162254-26-4
• C22H27 F N4 O2
• 398.4738
• .

• Oils, Artemisia
• 8022-37-5
• 0
• .