| 1,1,1-tris(4-hydroxyfenyl)ethaan | 1,1,2,2-tetrachloorethaan | 1,1,2,2-tetrafluorethaan |
| 1,1,2,3,4,4-hexafluorbuta-1,3-dieen | 1,1,2-trichloor-1,2,2-trifluorethaan | 1,1,2-trichloorethaan |
| 1,1-di-joodethaan | 1,1-dichloor-1-fluorethaan | 1,1-dichloor-2,2,2-trifluorethaan |
| 1,1-dichloor-2-fluorethaan | 1,1-dichloorethaan | 1,1-dichlooretheen |
| 1,1-dichloorethyleen | 1,1-dichloorpropaan | 1,1-difluorethaan |
| 1,1-difluoretheen | 1,1-dijoodethaan | 1,1-dimethoxyethaan |
| 1,1-dimethylhydrazine | 1,10-fenantroline | 1,10-Fenantroline |
| 1,2,3 | 1,2,3 show | 1,2,3,3,3-pentafluorpropeen |
| 1,2,3,4 | 1,2,3,4,5,6,7 | 1,2,3,4-tetrafenylnaftaleen |
| 1,2,3-indaantrion | 1,2,3-propaantriol | 1,2,3-triazool |
| 1,2,3-trichloorbenzeen | 1,2,3-trichloorpropaan | 1,2,3-trimethylbenzeen |
| 1,2,3-trioxolaan | 1,2,4,5-tetrachloorbenzeen | 1,2,4,5-tetramethylbenzeen |
| 1,2,4-butaantriol | 1,2,4-triazool | 1,2,4-trichloorbenzeen |
| 1,2,4-trihydroxyanthrachinon | 1,2,4-trimethylbenzeen | 1,2,5-oxadiazool |
| 1,2-benzanthraceen | 1,2-bis(difenylfosfino)ethaan | 1,2-bis(dimethylfosfano)ethaan |
| 1,2-Bis(nitrooxy)ethaan | 1,2-butaandiol | 1,2-butyleencarbonaat |
| 1,2-di-ethylbenzeen | 1,2-di-joodethaan | 1,2-diaminoethaan |
| 1,2-diaminopropaan | 1,2-dibroom-3-chloorpropaan | 1,2-dibroomethaan |
| 1,2-dichloor-1,1,2,2-tetrafluorethaan | 1,2-dichloor-3-nitrobenzeen | 1,2-dichloor-4-nitrobenzeen |
| 1,2-dichloorbenzeen | 1,2-dichloorethaan | 1,2-dichlooretheen |
| 1,2-dichloorethyleen | 1,2-dichloorpropaan | 1,2-diethylbenzeen |
| 1,2-difenyl-1,2-ethaandion | 1,2-difenylethaan | 1,2-difenylethaandion |
| 1,2-difenylhydrazine | 1,2-difluorbenzeen | 1,2-difluorethaan |
| 1,2-dihydronaftaleen | 1,2-dihydroxybenzeen | 1,2-dijoodethaan |
| 1,2-dimethoxybenzeen | 1,2-Dimethoxybenzeen | 1,2-dimethoxyethaan |
| 1,2-dimethylcyclopropaan | 1,2-dinitrobenzeen | 1,2-dioxetaan |
| 1,2-dioxetaandion | 1,2-divinylbenzeen | 1,2-eliminatie |
| 1,2-ethaandiol | 1,2-propaandiamine | 1,2-propaandiol |
| 1,2020569031... | 1,3,3,3-tetrafluorpropeen | 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-gamma-2-benzopyraan |
| 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-γ-2-benzopyraan | 1,3,5-trichloor-2-methoxy-benzeen | 1,3,5-trichloorbenzeen |
| 1,3,5-trimethylbenzeen | 1,3,5-trinitrobenzeen | 1,3,6-cyclo-octatrieen |
| 1,3,6-cyclooctatrieen | 1,3-bis(difenylfosfino)propaan | 1,3-butaandiamine |
| 1,3-butaandiol | 1,3-butadieen | 1,3-buteenglycol |
| 1,3-cyclo-octadieen | 1,3-cycloheptadieen | 1,3-cyclohexadieen |
| 1,3-di-jood-2-propanol | 1,3-diaminobutaan | 1,3-diaminopropaan |
| 1,3-dibroompropaan | 1,3-dichloor-2-nitrobenzeen | 1,3-dichloor-4-nitrobenzeen |
| 1,3-dichloor-5-nitrobenzeen | 1,3-dichloorbenzeen | 1,3-dichloorpropaan |
| 1,3-dichloorpropeen | 1,3-difenylguanidine | 1,3-dijood-2-propanol |
| 1,3-dimesityl-imidazool-4,5-dihydro-2-ylideen | 1,3-Dimesityl-imidazool-4,5-dihydro-2-ylideen | 1,3-dimethyl-2-imidazolidinon |
| 1,3-Dimethylamylamine | 1,3-dinitrobenzeen | 1,3-dioxaan |
| 1,3-dioxepaan | 1,3-dioxetaan | 1,3-dioxetaandion |
| 1,3-dioxolaan | 1,3-dipolaire cycloadditie | 1,3-dipolaire verbinding |
| 1,3-dipool | 1,3-dithiaan | 1,3-divinylbenzeen |
| 1,3-indaandion | 1,3-pentadieen | 1,3-propaandiamine |
| 1,3-propaandiol | 1,3-propaansulton | 1,3-propiolacton |
| 1,3-thiazepine | 1,3035772690... | 1,30637788386... |
| 1,3247179572... | 1,4,8,11-tetraminecyclotetradecaan | 1,4-additie |
| 1,4-benzochinon | 1,4-benzochinonetetracarbonzuurdianhydride | 1,4-benzochinontetracarbonzuur |
| 1,4-benzochinontetracarbonzuurdianhydride | 1,4-butaandiamine | 1,4-butaandiol |
| 1,4-butaandioldiglycidylether | 1,4-butadiol | 1,4-butyleenglycol |
| 1,4-butyndiol | 1,4-cineool | 1,4-cyclo-octadieen |
| 1,4-cycloheptadieen | 1,4-cyclohexaandiol | 1,4-cyclohexadieen |
| 1,4-diaminobutaan | 1,4-dichloorbenzeen | 1,4-dihydropyridine |
| 1,4-dinitrobenzeen | 1,4-dioxaan | 1,4-dioxaantetraketon |
| 1,4-divinylbenzeen | 1,4-fenyleendi-isocyanaat | 1,4-fenyleendiisocyanaat |
| 1,4-heptonolacton | 1,4-thiazepine | 1,4142135623... |
| 1,5,9-cyclododecatrieen | 1,5-cyclo-octadieen | 1,5-cyclooctadieen |
| 1,5-diaminopentaan | 1,5-diazabicyclo(4.3.0)non-5-een | 1,5-naftaleendi-isocyanaat |
| 1,5-naftaleendiamine | 1,5-naftaleendiisocyanaat | 1,5-pentaandial |
| 1,5-pentaandiamine | 1,5-pentaandiol | 1,5-Pentaandiol |
| 1,6-difenyl-1,3,5-hexatrieen | 1,6-hexaandiamine | 1,6-hexaandiol |
| 1,6180339887... | 1,7-octadieen | 1,7320508075... |
| 1,8-cineool | 1,9021605831... | 1-(2-methoxypropoxy)-2-propanol |
| 1-(2-methoxypropoxy)propaan-2-ol | 1-(3-chlorofenyl)piperazine | 1-1-2 |
| 1-10 | 1-2-3 | 1-2-3-4 |
| 1-2-3-4 ou Les Collants noirs | 1-2-3-show | 1-2-Switch |
| 1-4-4 | 1-8-5-0 Live | 1-800-273-8255 |
| 1-9 | 1-900 | 1-Aardbeving |
| 1-amino-2-propanol | 1-aminocyclopropaan-1-carbonzuur | 1-Aminocyclopropaan-1-carbonzuur |
| 1-aprilgrap | 1-braan | 1-broom-4-fluorbenzeen |
| 1-broombutaan | 1-broompentaan | 1-broompropaan |
| 1-butaanthiol | 1-butanol | 1-buteenoxide |
| 1-butyl-3-methylimidazoliumhexafluorfosfaat | 1-butyl-3-methylimidazoliumtetrachloorferraat | 1-butyn |
| 1-Butyn | 1-chloor-1,1,2,2,2-pentafluorethaan | 1-chloor-1,1-difluorethaan |
| 1-chloor-2,4-dinitrobenzeen | 1-chloor-2-methylpropaan | 1-chloor-2-nitrobenzeen |
| 1-chloor-3,4-dinitrobenzeen | 1-chloor-4-nitrobenzeen | 1-chloorbutaan |
| 1-chloorethaan | 1-chloormethyl-4-fluor-1,4-diazoniabicyclo(2.2.2)octaanbis(tetrafluorboraat) | 1-chloorpropaan |
| 1-complement | 1-decaanthiol | 1-decanol |
| 1-deceen | 1-dodecaanthiol | 1-dodecanol |
| 1-Dodecanol | 1-dodecylmercaptaan | 1-eicoseen |
| 1-Eicoseen | 1-fenylpropeen | 1-guldenstuk |
| 1-heptanol | 1-Heptanol | 1-hepteen |
| 1-heptyn | 1-hexadecaanthiol | 1-hexanol |
| 1-hexeen | 1-Hexeen | 1-hydroxy-2,6-dimethylbenzeen |
| 1-hydroxy-4-fluor-1,4-diazoniabicyclo(2.2.2)octaanbis(tetrafluorboraat) | 1-hydroxy-cis-3-hexeen | 1-hydroxybenzotriazool |
| 1-indanon | 1-joodbutaan | 1-joodpropaan |
| 1-mercaptopropaan | 1-methoxy-2-(2-methoxyethoxy)ethaan | 1-methoxy-2-propanol |
| 1-methyl-4-fenyl-1,2,3,6-tetrahydropyridine | 1-methylbutylacetaat | 1-methylcyclohexanol |
| 1-methylcyclopropeen | 1-methylnaftaleen | 1-methylpropylacetaat |
| 1-methylpropylethanoaat | 1-naftaleenazijnzuur | 1-naftol |
| 1-Naftol | 1-naftylamine | 1-naftylmethylcarbamaat |
| 1-nitronaftaleen | 1-nitropropaan | 1-nitrosopyrrolidine |
| 1-Nitrosopyrrolidine | 1-noneen | 1-octanol |
| 1-octeen | 1-pentanol | 1-penteen |
| 1-pentyn | 1-Pentyn | 1-propaanthiol |
| 1-propanol | 1-propylbenzeen | 1-Steen |
| 1-tert-butoxy-2-propanol | 1-tert-butoxypropan-2-ol | 1-tetralon |
| 1. Amateurliga Nordbaden 1950/51 | 1. Amateurliga Südbaden 1950/51 | 1. Amateurliga Württemberg 1950/51 |
| 1. Anpilogovo | 1. česká fotbalová liga | 1. česká fotbalová liga 1993/94 |
| 1. česká fotbalová liga 1994/95 | 1. česká fotbalová liga 1995/96 | 1. česká fotbalová liga 1996/97 |
