This is a partial list of molecules that contain 4 carbon atoms.
Chemical formula Synonyms CAS number C4Br2 dibromobutadiyne 36333-41-2 C4Ce cerium tetracarbide 12151-79-0 C4ClF7O heptafluorobutyryl chloride 375-16-6 C4Cl2F4O2 tetrafluorosuccinyl chloride 356-15-0 C4Cl2F4O3 chlorodifluoroacetic anhydride 2834-23-3 C4Cl2O4Rh2 dirhodium tetracarbonyl dichloride 14523-22-9 C4Cl3CoO4Si trichlorosilylcobalt tetracarbonyl 14239-21-5 C4Cl4O perchlorocyclobutenone 3200-96-2 C4CoF3O4Si trifluorosilylcobalt tetracarbonyl 15693-79-5 C4Dy dysprosium tetracarbide 12543-88-3 C4F4O3 tetrafluorosuccinic anhydride 699-30-9 C4F6O hexafluorocyclobutanone 699-35-4 C4F8 octafluorocyclobutane 115-25-3 C4F10O2S nonafluorobutanesulfonyl fluoride 375-72-4 C4FeI2O4 iron tetracarbonyl diiodide 14911-55-8 C4FeO4 iron tetracarbonyl 15281-98-8 C4H2Br2O3 mucobromic acid 488-11-9 C4H2Br2O3 mucobromic acid lactone 766-38-1 C4H2Cl2O2 fumaryl chloride 627-63-4 C4H2Cl2O3 mucochloric acid 87-56-9 C4H2Cl4O3 dichloroacetic anhydride 4124-30-5 C4H2F4O4 tetrafluorosuccinic acid 377-38-8 C4H2N2 fumaronitrile 764-42-1 C4H2N2O4 alloxan 50-71-5 C4H3BrS 2-bromothiophene 1003-09-4 C4H3ClN2 chloropyrazine 14508-49-7 C4H3Cl3OS methyl trichlorothioacrylate 76619-91-5 C4H3Cu copper vinylacetylenide 5256-77-9 C4H3F3O2 vinyl trifluoroacetate 433-28-3 C4H3F5O2 pentafluoropropanoic acid methyl ester 378-75-6 C4H3F7O heptafluoropropyl methyl ether 375-03-1 C4H3F7O methyl perfluoroisopropyl ether 22052-84-2 C4H3F7O sevoflurane 28523-86-6 C4H3N cyanoallene 1001-56-5 C4H3N3O4 violuric acid 87-39-8 C4H4 cyclobutadiene 1120-53-2 C4H4 methylenecyclopropene 4095-06-1 C4H4 Tetrahedrane 157-39-1 C4H4AsCl3 lewisite 2 40334-69-8 C4H4Cl2O2 butanedioyl dichloride 543-20-4 C4H4Cl2O2 vinyl dichloro acetate 7561-04-8 C4H4N2 pyrazine 290-37-9 C4H4N2 pyridazine 289-80-5 C4H4N2 succinonitrile 110-61-2 C4H4N2O2 acetylenedicarboxamide 543-21-5 C4H4N2O2 maleic hydrazide 123-33-1 C4H4N2O2 uracil 66-22-8 C4H4N2O2S sulfonyl diacetonitrile 37463-94-8 C4H4N2O3 barbituric acid 67-52-7 C4H4N2O3 barbituric acid 32267-40-6 C4H4N2O5 alloxan 3237-50-1 C4H4N2S2 dithiouracil 2001-93-6 C4H4N2S2 ethylene dithiocyanate 629-17-4 C4H4Na2O4 sodium succinate 150-90-3 C4H4O furan 110-00-9 C4H4O3S thiodiglycolic anhydride 3261-87-8 C4H4O4 ethylene oxalate 3524-70-7 C4H4O4 fumaric acid 110-17-8 C4H4O5 oxalacetic acid 328-42-7 C4H4S thiophene 110-02-1 C4H4S2 2-thiophenethiol 7774-74-5 C4H4S2 3-thiophenethiol 7774-73-4 C4H4Se selenophene 288-05-1 C4H4Te tellurophene 288-08-4 C4H5BrF2O2 ethyl bromodifluoroacetate 667-27-6 C4H5ClO cyclopropanecarboxylic acid chloride 4023-34-1 C4H5ClO methacryloyl chloride 920-46-7 C4H5ClO3 methyl malonyl chloride 37517-81-0 C4H5F5O ethyl pentafluoroethyl ether 22052-81-9 C4H5N allyl isocyanide 2835-21-4 C4H5N cyclopropanecarbonitrile 5500-21-0 C4H5N pyrrole 109-97-7 C4H5NO2S ethoxycarbonyl isothiocyanate 16182-04-0 C4H5NO3 maleamic acid 557-24-4 C4H5NS allyl isothiocyanate 57-06-7 C4H5N3 aminopyrazine 5049-61-6 C4H5N3O3 uramil 118-78-5 C4H6 cyclobutene 822-35-5 C4H6 methylenecyclopropane 6142-73-0 C4H6Br2O2 ethyl dibromoacetate 617-33-4 C4H6MgO4 magnesium acetate 142-72-3 C4H6N2O2 dihydrouracil 504-07-4 C4H6N2O2 dimethylfurazan monoxide 2518-42-5 C4H6N2O2 ethyl diazoacetate 623-73-4 C4H6N2S methimazole 60-56-0 C4H6N4O2 glycoluril 496-46-8 C4H6N4O12 erythrityl tetranitrate 142435-64-1 C4H6O crotonaldehyde 123-73-9 C4H6O cyclobutanone 1191-95-3 C4H6O cyclopropanecarboxaldehyde 1489-69-6 C4H6O ethoxyacetylene 927-80-0 C4H6O ethylketene 20334-52-5 C4H6O methyl propargyl ether 627-41-8 C4H6O methyl vinyl ketone 78-94-4 C4H6O vinyl ether 109-93-3 C4H6OS vinyl sulfoxide 1115-15-7 C4H6O2 acetic acid ethenyl ester 108-05-4 C4H6O2 crotonic acid 107-93-7 C4H6O2 crotonic acid 3724-65-0 C4H6O2 cyclopropanecarboxylic acid 1759-53-1 C4H6O2 isocrotonic acid 503-64-0 C4H6O2S diacetyl sulfide 3232-39-1 C4H6O2S divinyl sulfone 77-77-0 C4H6O3 acetic anhydride 108-24-7 C4H6O3 propylene carbonate 108-32-7 C4H6O4 butanedioic acid 110-15-6 C4H6O4 diacetyl peroxide 110-22-5 C4H6O4 methylmalonic acid 516-05-2 C4H6O4Zn zinc acetate 557-34-6 C4H6O5 diglycolic acid 110-99-6 C4H6O5 hydroxybutanedioic acid 6915-15-7 C4H6O5 methyltartronic acid 595-98-2 C4H6O6 meso tartaric acid 147-73-9 C4H6O6 tartaric acid 133-37-9 C4H6S divinyl sulfide 627-51-0 C4H6S 2,3-dihydrothiophene 1120-59-8 C4H6S4 dimethyl tetrathiooxalate 61485-47-0 C4H7 cyclobutyl radical 4548-06-5 C4H7AlO5 aluminum diacetate 142-03-0 C4H7Br cyclobutyl bromide 4399-47-7 C4H7BrO isobutyryl bromide 2736-37-0 C4H7ClO butanoyl chloride 141-75-3 C4H7ClO2 ethoxyacetyl chloride 500025-15-0 C4H7ClO2 ethyl chloroacetate 105-39-5 C4H7CsO2 caesium butyrate 38869-25-9 C4H7FO2 isopropyl fluoromethanoate 500023-95-0 C4H7F4N tetrafluorodiethylamine 462-89-5 C4H7IO2 ethyl iodoacetate 623-48-3 C4H7KO2 potassium butyrate 589-39-9 C4H7LiO2 lithium butyrate 21303-03-7 C4H7N butyronitrile 109-74-0 C4H7NO cyclopropanecarboxamide 6228-73-5 C4H7NO ethoxyacetonitrile 62957-60-2 C4H7NO methacrylamide 79-39-0 C4H7NO2 acetoacetamide 5977-14-0 C4H7NO3 ethyl oxamate 617-36-7 C4H7NO4 aspartic acid 56-84-8 C4H7NS isopropyl isothiocyanate 2253-73-8 C4H7N3O creatinine 60-27-5 C4H7NaO2 sodium butyrate 156-54-7 C4H7O2Rb rubidium butyrate 38869-23-7 C4H7O2Tl thallium butyrate 63424-49-7 C4H8 cyclobutane 287-23-0 C4H8 methylcyclopropane 594-11-6 C4H8Cl2Si ethylvinyldichlorosilane 10138-21-3 C4H8Cl3O4P metrifonate 52-68-6 C4H8N2 lysidine 534-26-9 C4H8N2O2 butanediamide 110-14-5 C4H8N2O3 ethyl allophanate 626-36-8 C4H8N2O4S2 dithiodiglycolicdihydroxamic acid 764-29-4 C4H8N2S allylthiourea 109-57-9 C4H8O butanal 123-72-8 C4H8O cyclobutanol 2919-23-5 C4H8O cyclopropyl carbinol 2516-33-8 C4H8O cyclopropyl methyl ether 540-47-6 C4H8O2 butyric acid 107-92-6 C4H8O2 ethyl acetate 141-78-6 C4H8O2 ethylene glycol monovinyl ether 764-48-7 C4H8O3 ethylene glycol monoacetate 542-59-6 C4H8O4 acetic acid dimer 6993-75-5 C4H8O4 1,3,5,7-tetroxane 293-30-1 C4H8S tetrahydrothiophene 110-01-0 C4H8S ethylvinyl sulfide 627-50-9 C4H8S3 allyl methyl trisulfide 34135-85-8 C4H9 isobutyl radical 4630-45-9 C4H9ClHg isobutylmercuric chloride 27151-74-2 C4H9ClSi vinyldimethylchlorosilane 1719-58-0 C4H9Cl2OP butylphosphonic dichloride 2302-80-9 C4H9Cl3Si isobutyltrichlorosilane 18169-57-8 C4H9F3O3SSi trimethylsilyl trifluoromethanesulfonate 27607-77-8 C4H9Li butyl lithium 109-72-8 C4H9N cyclobutylamine 2516-34-9 C4H9N pyrrolidine 123-75-1 C4H9NaO sodium tert-butoxide 865-48-5 C4H9NO butanamide 541-35-5 C4H9NO morpholine 110-91-8 C4H9NO2 methylalanine 3913-67-5 C4H9NO2 propylcarbamate 627-12-3 C4H9NO3 butyl nitrate 928-45-0 C4H9NO3 isobutyl nitrate 543-29-3 C4H9NO3 threonine 72-19-5 C4H9NO4 ammonium acid succinate 38457-08-8 C4H9NO6 ammonium acid tartrate 3095-65-6 C4H9NS dimethyl thioacetamide 631-67-4 C4H9NS thiomorpholine 123-90-0 C4H9NSSi trimethylsilyl isothiocyanate 2290-65-5 C4H10 butane 106-97-8 C4H10 isobutane 75-28-5 C4H10AlCl diethylaluminumchloride 96-10-6 C4H10BCl chlorodiethylborane 5314-83-0 C4H10BF3O boron trifluoride etherate 109-63-7 C4H10Be diethylberyllium 542-63-2 C4H10Cl2Si dichlorodiethylsilane 1719-53-5 C4H10Cl2Sn diethyl dichloro tin 866-55-7 C4H10FO2P ethyl ethylphosphonofluoridate 650-20-4 C4H10FO2P propyl methylphosphonofluoridate 763-14-4 C4H10FO2P sarin 107-44-8 C4H10F3NS diethylaminosulfur trifluoride 38078-09-0 C4H10NO3PS acephate 30560-19-1 C4H10N2 diethyldiazene 821-14-7 C4H10N2 piperazine 110-85-0 C4H10N2O butyric acid hydrazide 3538-65-6 C4H10N4O2 butanedioyl dihydrazide 4146-43-4 C4H10N4O2S mercaptosuccindihydrazide 687-57-0 C4H10N4O2S2 dithiodiglycolic acid dihydrazide 6854-84-8 C4H10N4S2 ethylenediamine dihydrothiocyanate 22205-63-6 C4H10O ethoxy ethane 60-29-7 C4H10O methyl propyl ether 557-17-5 C4H10OS diethyl sulfoxide 70-29-1 C4H10O2 trimethylene glycol monomethyl ether 1589-49-7 C4H10O2S diethyl sulfone 597-35-3 C4H10O2S thiodiglycol 111-48-8 C4H10O4S butyl sulfuric acid 15507-13-8 C4H10O6S3 trimethylsulfonylmethane 67294-81-9 C4H10S diethyl sulfide 352-93-2 C4H10S2 methyl isopropyl disulfide 40136-65-0 C4H10S3 methyl propyl trisulfide 17619-36-2 C4H10S4 diethyl tetrasulfide 13730-34-2 C4H10Se2 diethyl diselenide 628-39-7 C4H10Te2 diethylditelluride 26105-63-5 C4H10Zn diethylzinc 557-20-0 C4H11AsO2 diethylarsinic acid 4964-27-6 C4H11BO2 ethyldimethoxyborane 7318-82-3 C4H11ClSi diethyldichlorosilane 1609-19-4 C4H11NO2 aminoacetaldehyde dimethyl acetal 22483-09-6 C4H11NO2 diethanolamine 111-42-2 C4H11NO8P2 glyphosine 2439-99-8 C4H11N3O7 diglycine nitrate 6845-92-7 C4H11O3P dimethyl ethylphosphonate 6163-75-3 C4H11O3P ethyl methyl methylphosphonate 18755-36-7 C4H12BrN tetramethylammonium bromide 64-20-0 C4H12CdCl3N tetramethylammonium trichlorocadmate 15976-91-7 C4H12CdSe dimethylcadmium·dimethylselenium 143481-65-6 C4H12ClN tetramethylammonium chloride 75-57-0 C4H12GeO4 tetramethoxygermanium 992-91-6 C4H12IN tetramethylammonium iodide 75-58-1 C4H12N2 tetramethylhydrazine 6415-12-9 C4H12N2O4 ammonium succinate 2226-88-2 C4H12N2O6 ammonium tartrate 3164-29-2 C4H12OSi ethyldimethylsilanol 5906-73-0 C4H12OSi trimethylsilylmethanol 3219-63-4 C4H12O4Si tetramethyl silicate 681-84-5 C4H12P2 tetramethylbiphosphine 3676-91-3 C4H12SSi trimethylsilyl methyl sulfide 3908-55-2 C4H12SZn dimethylzinc dimethylsulfide complex 91071-61-3 C4H12SeZn dimethylzinc dimethylselenium complex 108430-95-1 C4H12Si diethylsilane 542-91-6 C4H12TeZn dimethylzinc dimethyltellerium complex 127283-03-8 C4H13Cl2N tetramethylammonium hydrogen dichloride 5906-64-9 C4H13NSi trimethylsilylmethylamine 18166-02-4 C4H20I2N4Pt tetramethylammonium platinum iodide 131145-80-7 C4Ho holmium tetracarbide 12144-72-8 C4I4S tetraiodothiophene 19259-11-1 C4La lanthanum tetracarbide 12603-31-5 C4Lu lutetium tetracarbide 37215-84-2 C4N cyanopropynylidene 129066-33-7 C4N2O dicyanoketene 4361-47-1 C4N2O2 oxalyl dicyanide 36086-83-6 C4N2S dicyanothioketene 54856-36-9 C4Nd neodymium tetracarbide 12373-84-1 C4NiO4 nickel tetracarbonyl 13463-39-3 C4Sc scandium tetracarbide 12547-95-4 C4Th thorium tetracarbide 52931-63-2 C4Ti titanium tetracarbide 12547-96-5 C4U uranium tetracarbide 64539-55-5 C4Y monoyttrium tetracarbide 12547-98-7
See also Four-carbon molecule listing all hydrocarbons Carbon number List of compounds with carbon number 3 List of compounds with carbon number 5