• Octahydro-2,2,8,8-tetramethyl[1,2,4,3]triazaphosphorino[3,4-c][1,2,4,3]triazaphosphoriniumdichloride, 10-oxide (7CI)
• 92335-18-7
• C8H22 N5 O P . 2 Cl
• 235.2658
• .

• Octadecanoic acid, 1,4-dioxaspiro[4.5]dec-2-ylmethyl ester
• 223736-95-6
• C27H50 O4
• 438.68
• .

• Oxazole, 4,5-dihydro-2-methyl-4,4-dioctyl-
• 5313-79-1
• C20H39 N O
• 255.3117
• .

• Octadecanedioic acid, 9,10-dibromo-, (R*,R*)- (9CI)
• 67229-01-0
• C18H32 Br2 O4
• 472.2523
• .

• Octadecanoicacid, 12-hydroxy-, 2-hydroxytriacontyl ester
• 93840-70-1
• C48H96 O4
• 298-935-4
• 737.27344
• .

• Octanamide, 2-butyl-3-oxo-N-phenyl-
• 5659-20-1
• C18H27 N O2
• 289.4125
• .

• Olean-12-en-28-oicacid, 3-[(4-O-b-D-glucopyranosyl-b-D-glucopyranosyl)oxy]-16-hydroxy-,b-D-glucopyranosyl ester, (3b,16a)- (9CI)
• 185382-93-8
• C48H78 O19
• .

• Osteocalcin (goat reduced) (9CI)
• 90804-06-1
• C253H367 N63 O83 S2
• .

• Oils,orris-resinoid
• 8023-76-5
• .

• Octadecanoic acid, 2,3,3a,9a-tetrahydro-2-(hydroxymethyl)-6-imino-6H-furo[2',3':4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, monohydrochloride,[2R-(2a,3b,3ab,9ab)]- (9CI)
• 53758-27-3
• C27H45 N3 O5 . Cl H
• 491.6633
• .

• O-Benzyl-DL-alanine toluene-p-sulphonate
• 35386-78-8
• C₁₇H₂₁NO₅S
• 252-538-2
• 351.41734
• .

• Octane,2,3,7,8-tetrabromo-1-ethoxy-
• 57518-95-3
• C10H18 Br4 O
• 260-781-0
• 473.86532
• .

• Octane,1-[(1,1-dimethylethyl)thio]-
• 6044-58-2
• C12H26 S
• 202.3998
• .

• Oxiranecarboxylic acid, 2,3-diphenyl-, trans- (9CI)
• 53884-88-1
• C15H12 O3
• 240.254
• .

• Oxirane, 2-(4-methoxyphenyl)-3-(4-nitrophenyl)-, (2R,3R)-rel-
• 14985-27-4
• C15H13 N O4
• 271.268
• .

• Octanamide, N,N-dibutyl-
• 57303-23-8
• C₁₆H₃₃NO
• 260-670-7
• 255.43932
• .

• Octanoic acid, 4-methyl-, ethyl ester
• 56196-53-3
• C11H22 O2
• 260-051-1
• 186.29
• .

• Oreodaphnenessiana, ext.
• 91770-45-5
• 294-830-2
• .

• Oxireno[9,10]phenanthro[3,2-d][1,3]dioxole,8,8-dimethyl-
• 6048-58-4
• C17H12 O3
• 196.6766
• .

• Octadecanoicacid, 6-bromo-7-hydroxy-, methyl ester, (R*,S*)- (9CI)
• 6084-69-1
• C19H37 Br O3
• 221.2524
• .

• Oxirane,2-[[(g-w-perfluoro-C4-10-alkyl)thio]methyl] derivs.
• 119438-11-8
• .

• Octanedinitrile, 2,2,7,7-tetraphenyl-
• 6307-02-4
• C32H28 N2
• 440.57812
• .

• Oxetane,3,3-bis[[(2,2,3,3,4,4,5,5-octafluoropentyl)oxy]methyl]-
• 60176-94-5
• C15H14 F16 O3
• 546.2443
• .

• Oxodihydrothiochrome
• 99352-94-0
• C₁₂H₁₄N₄O₂S
• 0
• .

• Octadecanoic acid,2,6,10,14,18,22,26,30,31-nonahydroxy-4,8,12,16,20,24,28-heptaoxahentriacont-1-ylester
• 94023-28-6
• C42H84 O18
• 301-625-4
• 877.10556
• .

• Oxazolo[5,4-d]pyrimidine,2-methyl-7-[(phenylmethyl)thio]-
• 33360-27-9
• C13H11 N3 O S
• 257.3109
• .

• Octyl isooctadecanoate
• 93803-86-2
• C₅H₄N₂O₄
• 298-360-9
• 396.68988
• .

• Osmium,nonacarbonyldi-m3-thioxotri-,(2Os-Os) (9CI)
• 72282-40-7
• C9O9 Os3 S2
• .

• Olean-12-en-28-oicacid, 16-hydroxy-3-[(6-O-b-D-xylopyranosyl-b-D-glucopyranosyl)oxy]-, 2-O-(6-deoxy-a-L-mannopyranosyl)-a-L-arabinopyranosyl ester, (3b,16a)- (9CI)
• 160472-86-6
• C52H84 O21
• .

• Oils,Cyperus scariosus
• 68916-60-9
• 0
• .

• Oxazolo[5,4-d]pyrimidine,2-methyl-7-(methylthio)-
• 33360-25-7
• C7H7 N3 O S
• 181.215
• .

• Octadecanoic acid, lanthanum(3+) salt (3:1)
• 14741-67-4
• C18H36 O2 . 1/3 La
• 238-806-1
• 989.3134
• .

• Orlisin (9CI)
• 208996-41-2
• .

• Octadecanethioicacid, S-[2-[(2-chloroethyl)thio]ethyl] ester
• 6276-37-5
• C22H43 Cl O S2
• 423.1592
• .

• Octadecanoicacid, dihydroxy-, methyl ester (6CI,9CI)
• 67332-37-0
• C19H38 O4
• 330.5026
• .

• Oxazole, 4,5-dihydro-5-methyl-2-phenyl-
• 23437-02-7
• C10H11 N O
• 161.2004
• .

• Oleicacid, ester with N,N-dimethylhydracrylamide (8CI)
• 17341-22-9
• C23H43 N O3
• 381.5924
• .

• Olean-12-ene-28,29-dioicacid, 3,23-dihydroxy-, (3b,4b,20a)- (9CI)
• 96284-36-5
• C30H46 O6
• 502.6826
• .

• Octanoicacid, 2-[bis(hexyloxy)phosphinyl]-, butyl ester
• 6340-09-6
• C24H49 O5 P
• 448.6166
• .

• Octane,1,8-diisocyanato-2,4-dimethyl-
• 68882-56-4
• C12H20 N2 O2
• 272-571-6
• 224.2994
• .

• Octadecanoic acid, diester with9(or 10)-(hydroxymethyl)-1-octadecanol (9CI)
• 85118-14-5
• C55H108 O4
• 285-667-8
• .

• Octadecanoic acid, epoxy derivs.,Bu esters
• 61788-36-1
• 262-970-3
• .

• Octadecanoic acid, 12-hydroxy-, 2-hydroxyethyl ester
• 6284-41-9
• C20H40 O4
• 344.5292
• .

• Oak,Quercus infectoria, ext.
• 93165-57-2
• 296-944-8
• .

• Octadecanamide,N-[5-(1,1-dimethylethyl)-4-hydroxy-2-methylphenyl]-
• 6073-15-0
• C29H51 N O2
• 307.6892
• .

• OMS3013 (9CI)
• 113833-98-0
• .

• Oxirane,2-[(bicyclo[2.2.1]hept-5-en-2-ylmethoxy)methyl]-
• 3188-75-8
• C11H16 O2
• 180.2435
• .

• Octanoicacid, 3-oxo-2-pentyl-, pentyl ester
• 6274-67-5
• C18H34 O3
• 298.4608
• .

• Oils,mink, sulfurized
• 84650-28-2
• 283-505-0
• .

• Oxydendron arboreum, ext.
• 90082-32-9
• 290-121-7
• .