• O-(2,3,4-tri-O-acetyl-α-L-fucopyranosyl)-(1->3)-O-(2-acetamido-4,6-di-O-acetyl-2-deoxy-β-D-glucopyranosyl)-(1->3)-1,2,4,6-tetra-O-acetyl-D-galactopyranose
• 115921-24-9
• C38H53NO24
• 907.82000
• .

• oxovanadium,dihydroiodide
• 79498-66-1
• H4I2OV
• 324.78200
• .

• oxotitanium(1+),hydrofluoride
• 91042-26-1
• FH3OTi
• 85.88860
• .

• oxotungsten,rubidium,tantalum
• 117448-76-7
• H2ORbTaW
• 468.27100
• .

• oxotin,rhodium
• 143080-35-7
• H2ORhSn
• 239.62200
• .

• oxotin,palladium
• 223105-26-8
• H2OPdSn
• 243.13600
• .

• oxotin,silicon,sodium
• 923257-59-4
• H6NaOSiSn
• 191.82300
• .

• O-(2,6-dimethoxyphenyl) O-((3S,8S,9S,10R,13S,14S,16R,17R)-17-((2S,3R)-3-hydroxy-6-methylheptan-2-yl)-10,13-dimethyl-3-((tetrahydro-2H-pyran-2-yl)oxy)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-16-yl) carbonothioate
• 128292-46-6
• C41H62O7S
• 698.99200
• .

• oxygen
• 80937-33-3
• O2
• 31.99880
• .

• oxo vanadium(III)(1+)
• 12192-26-6
• OV+
• 66.94090
• .

• osmium(VIII) sulfide
• 12137-62-1
• OsS4
• 318.49000
• .

• oxyborane
• 35089-21-5
• BHO
• 27.02030
• .

• osmium(VIII) oxide-¹⁸O
• 31645-88-2
• O4Os
• 262.22700
• .

• OP(1+)
• 74392-19-1
• H3OP+
• 49.99700
• .

• osmium-oxy-tetrakis-pentafluorotellurate(VI)
• 82563-48-2
• F20O5OsTe4
• 1160.60000
• .

• octylidenebis(diisobutylaluminium)
• 4145-40-8
• B2H2O3
• 71.63610
• .

• osmium(IV) iodide
• 59201-59-1
• I4Os
• 697.84800
• .

• OCTAHYDRO-QUINOXALINE-1-CARBOXYLIC ACID BENZYL ESTER
• 889957-98-6
• C16H22N2O2
• 274.35800
• .

• oct-1-enylgermanium,trimethylsilicon
• 197522-40-0
• C17H42GeSi3
• 403.41200
• .

• O3’,O5’-hydroxyphosphoryl-O2’-methyl-adenosine
• 40269-29-2
• C11H14N5O6P
• 343.23300
• .

• O2’,O3’-isopropylidene-[5’]adenylic acid dibenzyl ester
• 10343-04-1
• C27H30N5O7P
• 567.53000
• .

• O-ethyl-O’-tri-n-butylstannyl phosphonate
• 108890-21-7
• C14H33O3PSn
• 399.08500
• .

• o-diphenylphosphanylbenzoic acid 1-cyclohexylallyl ester
• 1059574-45-6
• C28H29O2P
• 428.50200
• .

• O,O-dimethyl phenylcarbonothioylphosphoramidothioate
• 105314-02-1
• C9H12NO2PS2
• 261.30100
• .

• O,O-diethyl (2-chlorophenylcarbonothioyl)phosphoramidothioate
• 105291-17-6
• C11H15ClNO2PS2
• 323.79900
• .

• o-3-butenylbenzenediazonium hexafluorophosphate
• 107616-48-8
• C10H11F6N2P+
• 304.17200
• .

• O-(o-aminophenyl) O,O-diethyl phosphorothioate
• 106259-89-6
• C10H16NO3PS
• 261.27800
• .

• O-(1,1,3-trihydrotetrafluoropropyl)-(1-hydroxy-2,2,2-trichloroethyl)methylphosphinate
• 111257-11-5
• C6H8Cl3F4O3P
• 341.45200
• .

• O5’-(2-benzyloxy-1,2-dihydroxy-diphosphoryl)-guanosine
• 109653-33-0
• C17H21N5O11P2
• 533.32300
• .

• O2’,O3’-isopropylidene-O5’-(tris-benzyloxy-diphosphoryl)-uridine
• 121965-01-3
• C33H36N2O12P2
• 714.59300
• .

• O-(2-[2’-phenanthrolyl]phenyl) O,O’-dimethyl phosphate
• 1217848-60-6
• C20H17N2O4P
• 380.33400
• .

• O-potassium S,S-diheptyltrithiophosphate
• 1217597-48-2
• C14H30KOPS3
• 380.65400
• .

• o-bromophenolato(triphenylphosphine)gold
• 121589-51-3
• C24H19AuBrOP
• 631.25100
• .

• O-(dibenzylphosphinoyl)-O’-benzoyl-1,4-butanediol
• 1207477-26-6
• C25H27O4P
• 422.45300
• .

• O-(diphenylphosphinoyl)-O’-benzoyl-1,4-butanediol
• 1207477-25-5
• C23H23O4P
• 394.40000
• .

• Os3(CO)10(μ,η3-(PPh2)C60H)
• 1207318-60-2
• C82H11O10Os3P
• 1757.62000
• .

• O,O-dipropyl (tripropoxymethyl)phosphonate
• 120678-49-1
• C16H35O6P
• 354.41900
• .

• O-ethyl N,N-diethyl-1,1-dichloromethylphosphonate
• 1206550-03-9
• C7H16Cl2NO2P
• 248.08700
• .

• O-ethyl N,N-dimethyl-1,1-dichloromethylphosphonate
• 1206550-01-7
• C5H12Cl2NO2P
• 220.03400
• .

• O-ethyl N,N-dimethyltrichloromethylphosphonoamidate
• 1206549-94-1
• C5H11Cl3NO2P
• 254.47900
• .

• O,O-diethyl [1-[(2’-hydroxynaphth-1’-yl)](phenyl)methylamino]-1-(phenyl)methylphosphonate
• 1186001-26-2
• C28H30NO4P
• 475.51600
• .

• O,O-dimethyl [1-[(2’-hydroxynaphth-1’-yl)](4’’-bromophenyl)methylamino]-1-(4-bromophenyl)methylphosphonate
• 1186001-25-1
• C26H24Br2NO4P
• 605.25500
• .

• O,O-dimethyl [1-[(2’-methoxynaphth-1’-yl)](phenyl)methylamino]-1-(phenyl)methylphosphonate
• 1186001-20-6
• C27H28NO4P
• 461.48900
• .

• O,O-dimethyl (2,2,2-trichloro-1-hydroxyethyl)phosphoramidothioate
• 118083-18-4
• C4H9Cl3NO3PS
• 288.51700
• .

• O,O-diethyl-O’,O’-diisopropylpyrophosphate
• 116054-57-0
• C10H24O7P2
• 318.24100
• .

• o,o’-[(1,2-Dioxo-1,2-ethandiyl)bisimino]bis(benzyltriphenylphosphoniumbromid)
• 115983-48-7
• C52H44BrN2O2P2+
• 870.76900
• .

• octyl methyl(2,2,2-trichloro-1-hydroxyethyl)phosphinate
• 122348-11-2
• C11H22Cl3O3P
• 339.62300
• .

• O,O-dimethyl(diphenylmethyl)thiophosphonate
• 122297-27-2
• C15H17O2PS
• 292.33300
• .

• O,O-diisopropyl (4-oxothiazolidin-2-ylidene)phosphoramidothioate
• 126588-17-8
• C9H17N2O3PS2
• 296.34700
• .

• O,O-diethyl 2-(2-phenyl-1H-benzimidazol-1-yl)ethylphosphonate
• 1251832-49-1
• C19H23N2O3P
• 358.37100
• .