This is a partial list of molecules that contain 2 carbon atoms.
| Chemical formula | Synonyms | CAS number |
|---|---|---|
| C2Al | 37297-57-7 | |
| C2Al2 | 12122-01-9 | |
| C2B | 12539-98-9 | |
| C2Be | 12070-28-9 | |
| C2BrCl | 25604-70-0 | |
| C2BrClF2O | 3832-48-2 | |
| C2BrCl5 | 79504-02-2 | |
| C2BrF5 | 354-55-2 | |
| C2Br2FN | 6698-74-4 | |
| C2Br2N2O2 | 70134-71-3 | |
| C2Br2O2 | 15219-34-8 | |
| C2Br6 | 594-73-0 | |
| C2Ca | 75-20-7 | |
| C2Ce | 12012-32-7 | |
| C2CeRh | 53262-56-9 | |
| C2Cl2F2 | 27156-03-2 | |
| C2Cl2O2 | 79-37-8 | |
| C2Cl3N | 108-77-0 | |
| C2Cl4 | 127-18-4 | |
| C2Cl4O | 76-02-8 | |
| C2Cl4O2 | 503-38-8 | |
| C2Cl5F | 354-56-3 | |
| C2CoNO3 | 61332-94-3 | |
| C2Dy | 12175-80-3 | |
| C2Er | 12192-37-9 | |
| C2Eu | 12127-44-5 | |
| C2FN5O10 | 23072-51-7 | |
| C2F2O2 | 359-40-0 | |
| C2F3 | 4605-17-8 | |
| C2F3I | 359-37-5 | |
| C2F3N | 105879-13-8 | |
| C2F5 | 3369-48-0 | |
| C2F5I | 354-64-3 | |
| C2F6O5S2 | 358-23-6 | |
| C2F7N | 354-80-3 | |
| C2H | 2122-48-7 | |
| C2HBrClF3 | 151-67-7 | |
| C2HBrO | 78957-22-9 | |
| C2HBr2FO2 | 353-99-1 | |
| C2HBr3 | 598-16-3 | |
| C2HBr3O2 | 75-96-7 | |
| C2HClO | 29804-89-5 | |
| C2HCl3 | 79-01-6 | |
| C2HCl3O | 75-87-6 | |
| C2HF3OS | 2925-25-9 | |
| C2HF5O | 3822-68-2 | |
| C2HNO | 4471-47-0 | |
| C2HO | 51095-15-9 | |
| C2H2 | 74-86-2 | |
| C2H2AsCl3 | 541-25-3 | |
| C2H2BrClO | 22118-09-8 | |
| C2H2Br2O | 598-21-0 | |
| C2H2Br2O2 | 631-64-1 | |
| C2H2Cl2 | ||
| C2H2ClF2NO | 354-28-9 | |
| C2H2ClNS | 3268-79-9 | |
| C2H2Cl2O | 79-02-7 | |
| C2H2FN | 503-20-8 | |
| C2H2F2O2 | 381-73-7 | |
| C2H2IN | 624-75-9 | |
| C2H2N | 2932-82-3 | |
| C2H2O | 32038-79-2 | |
| C2H2O | 463-51-4 | |
| C2H2O | 157-18-6 | |
| C2H2OS | 121564-25-8 | |
| C2H2O2 | 107-22-2 | |
| C2H2O3 | 1558-67-4 | |
| C2H2O4 | 144-62-7 | |
| C2H2O8Pb3 | 1319-46-6 | |
| C2H2S | 18282-77-4 | |
| C2H2Se | 61134-37-0 | |
| C2H3 | 2669-89-8 | |
| C2H3BF2 | 358-95-2 | |
| C2H3BrO | 506-96-7 | |
| C2H3Br3O2 | 507-42-6 | |
| C2H3Cl | 31304-51-5 | |
| C2H3ClO | 75-36-5 | |
| C2H3ClO2S | 26555-40-8 | |
| C2H3Cl3O2 | 302-17-0 | |
| C2H3FO | 557-99-3 | |
| C2H3F2NO | 359-38-6 | |
| C2H3F3O2Si | 6876-44-4 | |
| C2H3F3S2 | 14410-21-0 | |
| C2H3IO | 507-02-8 | |
| C2H3KO2 | 127-08-2 | |
| C2H3N | 75-05-8 | |
| C2H3NO | 1768-34-9 | |
| C2H3NO | 54680-52-3 | |
| C2H3NO2 | 500016-67-1 | |
| C2H3NO2 | 3638-64-0 | |
| C2H3NO3 | 471-47-6 | |
| C2H3NO4 | 591-09-3 | |
| C2H3NSe | 4426-70-4 | |
| C2H3NSe | 2179-80-8 | |
| C2H3NaO2 | 127-09-3 | |
| C2H3O | 3170-69-2 | |
| C2H3O | 31586-84-2 | |
| C2H3O | 6912-06-7 | |
| C2H3O2Tl | 563-68-8 | |
| C2H4 | 74-85-1 | |
| C2H4ClO2P | 822-39-9 | |
| C2H4Cl2 | 1300-21-6 | |
| C2H4F2O | 359-13-7 | |
| C2H4N2O2 | 471-46-5 | |
| C2H4N2O4 | 1687-60-1 | |
| C2H4N2S2 | 79-40-3 | |
| C2H4N4 | 461-58-5 | |
| C2H4N4O2 | 123-77-3 | |
| C2H4O | 75-07-0 | |
| C2H4O | 557-75-5 | |
| C2H4O | 75-21-8 | |
| C2H4OS | 507-09-5 | |
| C2H4OS | 2492-74-2 | |
| C2H4O2 | 64-19-7 | |
| C2H4O2 | 6788-84-7 | |
| C2H4O2 | 61233-19-0 | |
| C2H4O2 | 107-31-3 | |
| C2H4O2 | 141-46-8 | |
| C2H4O3 | 79-21-0 | |
| C2H4O3 | 7456-87-3 | |
| C2H4O4 | 14523-98-9 | |
| C2H4S | 420-12-2 | |
| C2H4S | 6851-93-0 | |
| C2H4Se | 67281-48-5 | |
| C2H4Se3 | 121400-83-7 | |
| C2H5 | 2025-56-1 | |
| C2H5BCl2 | 1739-53-3 | |
| C2H5BF2 | 430-41-1 | |
| C2H5BrHg | 107-26-6 | |
| C2H6Hg | 593-74-8 | |
| C2H5BrO | 13057-17-5 | |
| C2H5Cl | 75-00-3 | |
| C2H5ClN2O | 30956-28-6 | |
| C2H5ClO | 624-85-1 | |
| C2H5ClO2S | 594-44-5 | |
| C2H5ClS | 2373-51-5 | |
| C2H5Cl2O2P | 1498-51-7 | |
| C2H5Cl2P | 1498-40-4 | |
| C2H5Cl2PSe | 14705-46-5 | |
| C2H5Cl3Si | 115-21-9 | |
| C2H5FO | 460-22-0 | |
| C2H5FO2S | 754-03-0 | |
| C2H5HgI | 2440-42-8 | |
| C2H5I | 75-03-6 | |
| C2H5IO | 13057-19-7 | |
| C2H5IS | 43034-68-0 | |
| C2H5Li | 811-49-4 | |
| C2H5N | 20729-41-3 | |
| C2H5N | 593-67-9 | |
| C2H5N | 151-56-4 | |
| C2H5NO | 107-29-9 | |
| C2H5NO | 60-35-5 | |
| C2H5NO | 925-91-7 | |
| C2H5NOS | 758-10-1 | |
| C2H5NO2 | 56-40-6 | |
| C2H5NO2 | 598-42-5 | |
| C2H5NO2S | 2386-58-5 | |
| C2H5NO4 | 5972-72-5 | |
| C2H5NS | 62-55-5 | |
| C2H5N3O2 | 108-19-0 | |
| C2H5O | 2154-50-9 | |
| C2H5P | 6569-82-0 | |
| C2H5P | 58436-39-8 | |
| C2H5PS2 | 41391-49-5 | |
| C2H5S | 31533-72-9 | |
| C2H6 | 74-84-0 | |
| C2H6AlCl | 1184-58-3 | |
| C2H6AsBr | 676-71-1 | |
| C2H6AsCl | 557-89-1 | |
| C2H6BBr | 5158-50-9 | |
| C2H6BCl | 1803-36-7 | |
| C2H6BClFN | 38481-07-1 | |
| C2H6BClO2 | 868-81-5 | |
| C2H6BFO2 | 367-46-4 | |
| C2H6Be | 506-63-8 | |
| C2H6ClOP | 1111-92-8 | |
| C2H6ClO2P | 3743-07-5 | |
| C2H6ClPS | 993-12-4 | |
| C2H6Cl2Ge | 1529-48-2 | |
| C2H6Cl2Si | 1789-58-8 | |
| C2H6FO2P | 353-88-8 | |
| C2H6FP | 507-15-3 | |
| C2H6F3NS | 3880-03-3 | |
| C2H6GeO | 5061-27-8 | |
| C2H6GeS | 16090-49-6 | |
| C2H6N | 15337-44-7 | |
| C2H6N2O2 | 19091-98-6 | |
| C2H6N2O4 | 20321-02-2 | |
| C2H6O | 115-10-6 | |
| C2H6O | 64-17-5 | |
| C2H6OS | 67-68-5 | |
| C2H6OS2 | 13882-12-7 | |
| C2H6O2 | 3031-74-1 | |
| C2H6O2 | 107-21-1 | |
| C2H6O2S | 67-71-0 | |
| C2H6O2S2 | 2949-92-0 | |
| C2H6O4 | 17088-73-2 | |
| C2H6O5S2 | 7143-01-3 | |
| C2H6S | 75-18-3 | |
| C2H6S | 75-08-1 | |
| C2H6S5 | 7330-31-6 | |
| C2H6Se | 593-79-3 | |
| C2H6Se2 | 7101-31-7 | |
| C2H6Si2 | 1070-76-4 | |
| C2H6Sn | 23120-99-2 | |
| C2H6Te | 593-80-6 | |
| C2H6Zn | 544-97-8 | |
| C2H7As | 593-57-7 | |
| C2H7AsO3 | 507-32-4 | |
| C2H7BF3N | 811-59-6 | |
| C2H7BO2 | 4433-63-0 | |
| C2H7ClO | 24521-77-5 | |
| C2H7N | 75-04-7 | |
| C2H7NO | 75-39-8 | |
| C2H7NO | 141-43-5 | |
| C2H7NO2S | 1520-70-3 | |
| C2H7NO3S | 91105-79-2 | |
| C2H7NO4S2 | 5347-82-0 | |
| C2H7NS | 60-23-1 | |
| C2H7O3P | 15845-66-6 | |
| C2H8BF4N | 16970-97-1 | |
| C2H8BrN | 593-55-5 | |
| C2H8N2 | 107-15-3 | |
| C2H8N2O4 | 1113-38-8 | |
| C2H8O2Si | 5314-52-3 | |
| C2H9N2O3 | 22113-86-6 | |
| C2H10N2O8S2Fe | 63589-59-3 | |
| C2H12CdTe | 143481-66-7 | |
| C2H12N6O4S | 594-14-9 | |
| C2HgN2S2 | 592-85-8 | |
| C2Ho | 12071-14-6 | |
| C2K2N2 | 55186-08-8 | |
| C2La | 12071-15-7 | |
| C2Li2 | 1070-75-3 | |
| C2Lu | 12175-89-2 | |
| C2Mg | 12122-46-2 | |
| C2N2 | 78800-21-2 | |
| C2N2 | 460-19-5 | |
| C2N2Na2 | 55186-09-9 | |
| C2N2O | 22430-66-6 | |
| C2N2S | 56023-03-1 | |
| C2N2S | 627-52-1 | |
| C2N2S2 | 505-14-6 | |
| C2N2Se | 2180-01-0 | |
| C2N4O6 | 630-72-8 | |
| C2N6O12 | 918-37-6 | |
| C2Na2 | 2881-62-1 | |
| C2Na2O4 | 62-76-0 | |
| C2Nd | 12071-21-5 | |
| C2O | 12071-23-7 | |
| C2P | 12602-39-0 | |
| C2Rh | 37306-47-1 | |
| C2Sc | 12175-91-6 | |
| C2Si | 12071-27-1 | |
| C2Si2 | 12144-09-1 | |
| C2Th | 12071-31-7 | |
| C2Ti | 12071-32-8 | |
| C2U | 12071-33-9 | |
| C2V | 12542-39-1 | |
| C2Y | 12071-35-1 | |
| C2Zr | 12340-54-4 | |