| 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
|
| 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 sulphide | 3232-39-1
|
| C4H6O2S | divinyl sulphone | 77-77-0
|
| C4H6O3 | acetic acid 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 tataric 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 | cesium 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 | butanenitrile | 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 | butanoic 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
|
| 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 disulphide | 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
|
| 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
|
| 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
|
