| 1G | 1H | 1H-azirin |
| 1H-fosfol | 1H-indol-2,3-dion | 1I/ʻOumuamua |
| 1αH,5αH-8-methyl-8-azabicyklo(3.2.1)oktan-3α-ol | 1αH,5αH-8-methyl-8-azabicyklo-(3.2.1)-oktan-3α-ol | 1αH,5αH-8-metyl-8-azabicyklo(3.2.1)oktan-3α-ol |
| 1αH,5αH-8-metyl-8-azabicyklo-(3.2.1)-oktan-3α-ol | 1αH,5αH-tropan-3-alfa-ol-(±) (2RS)-2-fenyl-3-hydroxy-1-propanoát | 1αH,5αH-tropan-3-alfa-ol-(±)-(2RS)-2-fenyl-3-hydroxy-1-propanoát |
| 1αH,5αH-tropan-3-α-ol-(±) (2RS)-2-fenyl-3-hydroxy-1-propanoát | 1αH,5αH-tropan-3-α-ol-(±)-(2RS)-2-fenyl-3-hydroxy-1-propanoát | 1αH,5αH-tropan-3α-ol |
| 1αH,5αH-tropan-3α-ol-(±) (2RS)-2-fenyl-3-hydroxy-1-propanoát | 1αH,5αH-tropan-3α-ol-(±)-(2RS)-2-fenyl-3-hydroxy-1-propanoát | 1K ZX Chess |
| 1P/Halley | 1Q84 | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester (-)-(S)-3-hydroxy-2-fenylpropanové kyseliny |
| 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester (-)-(S)-3-hydroxy-2-fenylpropionové kyseliny | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester (–)-(S)-3-hydroxy-2-fenylpropanové kyseliny | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester (–)-(S)-3-hydroxy-2-fenylpropionové kyseliny |
| 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester kyseliny (-)-(S)-3-hydroxy-2-fenylpropanové | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester kyseliny (-)-(S)-3-hydroxy-2-fenylpropionové | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester kyseliny (–)-(S)-3-hydroxy-2-fenylpropanové |
| 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester kyseliny (–)-(S)-3-hydroxy-2-fenylpropionové | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester (-)-(S)-3-hydroxy-2-fenylpropanové kyseliny | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester (-)-(S)-3-hydroxy-2-fenylpropionové kyseliny |
| 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester (–)-(S)-3-hydroxy-2-fenylpropanové kyseliny | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester (–)-(S)-3-hydroxy-2-fenylpropionové kyseliny | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester kyseliny (-)-(S)-3-hydroxy-2-fenylpropanové |
| 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester kyseliny (-)-(S)-3-hydroxy-2-fenylpropionové | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester kyseliny (–)-(S)-3-hydroxy-2-fenylpropanové | 1R,2R,4S,7S,9S)-9-methyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester kyseliny (–)-(S)-3-hydroxy-2-fenylpropionové |
| 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester (-)-(S)-3-hydroxy-2-fenylpropanové kyseliny | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester (-)-(S)-3-hydroxy-2-fenylpropionové kyseliny | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester (–)-(S)-3-hydroxy-2-fenylpropanové kyseliny |
| 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester (–)-(S)-3-hydroxy-2-fenylpropionové kyseliny | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester kyseliny (-)-(S)-3-hydroxy-2-fenylpropanové | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester kyseliny (-)-(S)-3-hydroxy-2-fenylpropionové |
| 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester kyseliny (–)-(S)-3-hydroxy-2-fenylpropanové | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo(3.3.1.02,4)non-7-yl ester kyseliny (–)-(S)-3-hydroxy-2-fenylpropionové | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester (-)-(S)-3-hydroxy-2-fenylpropanové kyseliny |
| 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester (-)-(S)-3-hydroxy-2-fenylpropionové kyseliny | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester (–)-(S)-3-hydroxy-2-fenylpropanové kyseliny | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester (–)-(S)-3-hydroxy-2-fenylpropionové kyseliny |
| 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester kyseliny (-)-(S)-3-hydroxy-2-fenylpropanové | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester kyseliny (-)-(S)-3-hydroxy-2-fenylpropionové | 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester kyseliny (–)-(S)-3-hydroxy-2-fenylpropanové |
| 1R,2R,4S,7S,9S)-9-metyl-3-oxa-9-azatricyklo-(3.3.1.02,4)non-7-yl ester kyseliny (–)-(S)-3-hydroxy-2-fenylpropionové | 1RXS J042200.5+193209 | 1RXS J213642.6-505033 |
| 1st | 1st American Tour 1964 (The Rolling Stones) | 1st American Tour 1965 (The Rolling Stones) |
| 1st British Tour 1964 (The Rolling Stones) | 1st British Tour 1965 (The Rolling Stones) | 1st Business Certificate |
| 1st International School of Ostrava | 1st Regiment Infantry National Guard of Philadelphia | 1st SFOD |
| 1st Special Forces Operational Detachment | 1stISO | 1Tr |
| 1TV | 1U | 2 |
| 2 $ocky | 2 (album Vladimíra Mišíka a Etc...) | 2 (album) |
| 2 (album, Netsky) | 2 (album, Vladimír Mišík a Etc...) | 2 (album, Vladimír Mišík a Etc…) |
| 2 (číslo) | 2 (linka metra v Baku) | 2 (linka metra v Ciudad de México) |
| 2 (linka metra v Madridu) | 2 (linka metra v Paříži) | 2 (linka metra v Pekingu) |
| 2 (linka) | 2 (rozcestník) | 2 (tramvajová linka v Île-de-France) |
| 2 (tramvajová linka v Ile-de-France) | 2 (tramvajová linka v Paříži) | 2 ¢ |
| 2 € | 2 € pamětní euro mince | 2 € pamětní euromince |
| 2 € pamětní mince | 2 €¢ | 2 €C |
| 2 blbouni v Paříži | 2 Broke Girls | 2 Canis Majoris |
| 2 centy | 2 Chainz | 2 CMa |
| 2 Days & 1 Night | 2 dny v Paříži | 2 eura |
| 2 eurocenty | 2 Fast 2 Furious | 2 Girls 1 Cup |
| 2 Guns | 2 guys 1 horse | 2 Houston Center |
| 2 IFC | 2 Live Jews | 2 Minutes to Midnight |
| 2 na 1 | 2 na 1 Česko | 2 př. n. l. |
| 2 pdr OQF | 2 pounder OQF | 2 QAM |
| 2 Socky | 2 souhvězdí Velkého psa | 2 Unlimited |
| 2 Velkého psa | 2 zbraně | 2,2',6,6'-tetrabrom-4,4'-isopropylidendifenol |
| 2,2',6,6'-tetrabrom-4,4'-izopropylidendifenol | 2,2',6,6'-tetrabromo-4,4'-isopropylidendifenol | 2,2',6,6'-tetrabromo-4,4'-izopropylidendifenol |
| 2,2',6,6'-tetrabromobisphenol A | 2,2'-bipyridin | 2,2'-bipyridin-3,3',4,4'-tetrol-1,1'-dioxid |
| 2,2'-bipyridino-3,3',4,4'-tetrol-1,1'-dioxid | 2,2'-methylenbis(3,4,6-trichlorfenol) | 2,2'-methylenbis(3,4,6-trichlorofenol) |
| 2,2'-metylenbis(3,4,6-trichlorfenol) | 2,2'-metylenbis(3,4,6-trichlorofenol) | 2,2'-oxybisetanol |
| 2,2'-oxybisethanol | 2,2,2-tribrometanol | 2,2,2-tribromethanol |
| 2,2,2-trichloretan-1,1-diol | 2,2,2-trichloretanol | 2,2,2-trichlorethan-1,1-diol |
| 2,2,2-trichlorethanol | 2,2,2-trichloroetan-1,1-diol | 2,2,2-trichloroethan-1,1-diol |
| 2,2,2-trifluoretanol | 2,2,2-trifluorethanol | 2,2,4-trimethylpentan |
| 2,2,4-trimetylpentan | 2,2-bis(4-hydroxyfenyl)propan | 2,2-dichlor-N-(1,3-dihydroxy-1-(4-nitrofenyl)propan-2-yl)acetamid |
| 2,2-dichlor-N-(1,3-dihydroxy-1-(4-nitrofenyl)propan-2-yl)etanamid | 2,2-dichlor-N-(1,3-dihydroxy-1-(4-nitrofenyl)propan-2-yl)ethanamid | 2,2-dichloretenyldimethylfosfát |
| 2,2-dichloretenyldimetylfosfát | 2,2-dichlorethenyldimethylfosfát | 2,2-dichlorethenyldimetylfosfát |
| 2,2-dichloro-N-(1,3-dihydroxy-1-(4-nitrofenyl)propan-2-yl)acetamid | 2,2-dichloro-N-(1,3-dihydroxy-1-(4-nitrofenyl)propan-2-yl)etanamid | 2,2-dichloro-N-(1,3-dihydroxy-1-(4-nitrofenyl)propan-2-yl)ethanamid |
| 2,2-dichloroetenyldimethylfosfát | 2,2-dichloroetenyldimetylfosfát | 2,2-dichloroethenyldimethylfosfát |
| 2,2-dichloroethenyldimetylfosfát | 2,2-dichlorovinyldimethylfosfát | 2,2-dichlorovinyldimetylfosfát |
| 2,2-dichlorvinyldimethylfosfát | 2,2-dichlorvinyldimetylfosfát | 2,2-dimethoxypropan |
| 2,2-dimethyl-2,3-dihydro-1-benzofuran-7-yl methylkarbamát | 2,2-dimethyl-2,3-dihydro-1-benzofuran-7-yl metylkarbamát | 2,2-dimethyl-2,3-dihydro-1-benzofuran-7-yl-methylkarbamát |
| 2,2-dimethyl-2,3-dihydro-1-benzofuran-7-yl-metylkarbamát | 2,2-dimethylpropan | 2,2-dimetyl-2,3-dihydro-1-benzofuran-7-yl methylkarbamát |
| 2,2-dimetyl-2,3-dihydro-1-benzofuran-7-yl metylkarbamát | 2,2-dimetyl-2,3-dihydro-1-benzofuran-7-yl-methylkarbamát | 2,2-dimetyl-2,3-dihydro-1-benzofuran-7-yl-metylkarbamát |
| 2,2-dimetylpropan | 2,2′-bipyridin | 2,3 sigmatropní přesmyk |
| 2,3,3,3-tetrafluoropropen | 2,3,3,3-tetrafluoropropylen | 2,3,3,3-tetrafluorpropen |
| 2,3,3,3-tetrafluorpropylen | 2,3,4,5,6-pentabrom-1-(2,3,4,5,6-pentabromfenoxy)benzen | 2,3,4,5,6-pentabrom-1-(2,3,4,5,6-pentabromofenoxy)benzen |
| 2,3,4,5,6-pentabromo-1-(2,3,4,5,6-pentabromfenoxy)benzen | 2,3,4,5,6-pentabromo-1-(2,3,4,5,6-pentabromofenoxy)benzen | 2,3,4,5,6-pentachlorfenol |
| 2,3,4,5,6-pentachlorofenol | 2,3,7,8-tetrachlor-dibenzo(b,e)(1,4)dioxin | 2,3,7,8-tetrachlor-dibenzodioxin |
| 2,3,7,8-tetrachlordibenzodioxin | 2,3,7,8-tetrachloro-dibenzo(b,e)(1,4)dioxin | 2,3,7,8-tetrachloro-dibenzodioxin |
| 2,3-benzanthracen | 2,3-benzantracen | 2,3-bisfosfoglycerát |
| 2,3-BPG | 2,3-butandion | 2,3-dichlor-5,6-dikyano-1,4-benzochinon |
| 2,3-dihydro-1H-inden | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)thio) methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)thio) metylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)thio)-methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)thio)-metylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)thio)methylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)thio)metylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)tio) methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)tio) metylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)tio)-methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)tio)-metylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)tio)methylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamin)tio)metylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)thio) methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)thio) metylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)thio)-methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)thio)-metylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)thio)methylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)thio)metylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)tio) methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)tio) metylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)tio)-methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)tio)-metylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)tio)methylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl((dibutylamino)tio)metylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl)(dibutylamino)thio)methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl)(dibutylamino)thio)metylkarbamát |
| 2,3-dihydro-2,2-dimethyl-7-benzofuranyl)(dibutylamino)tio)methylkarbamát | 2,3-dihydro-2,2-dimethyl-7-benzofuranyl)(dibutylamino)tio)metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)thio) methylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)thio) metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)thio)-methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)thio)-metylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)thio)methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)thio)metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)tio) methylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)tio) metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)tio)-methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)tio)-metylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)tio)methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamin)tio)metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)thio) methylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)thio) metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)thio)-methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)thio)-metylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)thio)methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)thio)metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)tio) methylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)tio) metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)tio)-methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)tio)-metylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)tio)methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl((dibutylamino)tio)metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl)(dibutylamino)thio)methylkarbamát |
| 2,3-dihydro-2,2-dimetyl-7-benzofuranyl)(dibutylamino)thio)metylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl)(dibutylamino)tio)methylkarbamát | 2,3-dihydro-2,2-dimetyl-7-benzofuranyl)(dibutylamino)tio)metylkarbamát |
| 2,3-dihydro-4H-pyran | 2,3-dihydropyran | 2,3-dihydroxycykloprop-2-en-1-on |
| 2,3-dimethylbutan-2,3-diol | 2,3-sigmatropní přesmyk | 2,3-Wittigův přesmyk |
| 2,4 - D | 2,4,4'-trichlor-2'-hydroxydifenylether | 2,4,5 - T |
| 2,4,5,7-tetrajodfluorescein, disodná sůl | 2,4,5,7-tetrajodfluorescein, dvojsodná sůl | 2,4,5,7-tetrajodofluorescein, disodná sůl |
| 2,4,5,7-tetrajodofluorescein, dvojsodná sůl | 2,4,5-T | 2,4,6-triamin-1,3,5-triazin |
| 2,4,6-triamino-1,3,5-triazin | 2,4,6-Triazido-1,3,5-triazin | 2,4,6-trichlor-1,3,5-triazin |
| 2,4,6-trimethylfenol | 2,4,6-trimethylpyridin | 2,4,6-trinitro-1-hydroxybenzen |
| 2,4,6-trinitro-1-methylbenzen | 2,4,6-trinitro-1-metylbenzen | 2,4,6-trinitro-2,4,6-triazacyklohexanon |
| 2,4,6-Trinitrofenol | 2,4,6-trinitrohydroxybenzen | 2,4,6-trinitromethylbenzen |
| 2,4,6-trinitrometylbenzen | 2,4,6-trinitrotoluen | 2,4-D |
| 2,4-diaminfenol | 2,4-diaminofenol | 2,4-dichlorfenoxyoctová kyselina |
| 2,4-dinitro-1-methylbenzen | 2,4-dinitro-1-metylbenzen | 2,4-dinitro-methylbenzen |
| 2,4-dinitro-metylbenzen | 2,4-Dinitroanisol | 2,4-Dinitroanizol |
| 2,4-dinitrochlorbenzen | 2,4-dinitrochlorobenzen | 2,4-dinitrofenylhydrazin |