| Chemical formula | Synonyms | CAS number |
|---|---|---|
| HAg | silver monohydride | 13967-01-6 |
| HAl | aluminium hydride | 13967-22-1 |
| HAlO | aluminium hydride oxide | 91571-48-1 |
| HAlO | aluminium hydroxide | 20768-67-6 |
| HAlO2 | aluminium hydroxide oxide | 24623-77-6 |
| HAs | arsenic monohydride | 12628-08-9 |
| HBBr2 | dibromoborane | 13709-65-4 |
| HBF2 | difluoroborane | 13709-83-6 |
| HBF2O | difluorohydroxyborane | 13867-66-8 |
| HBO | boron hydride oxide | 20611-59-0 |
| HBO2 | boron oxide hydroxide | 13460-50-9 |
| HBS | boron hydride sulfide | 14457-85-3 |
| HB3F2O3 | difluoroboroxin | 57328-69-5 |
| HBaO | barium monohydroxide | 12009-08-4 |
| HBe | beryllium monohydride | 13597-97-2 |
| HBeO | beryllium hydroxide | 20768-68-7 |
| HBr | hydrogen bromide | 10035-10-6 |
| HBrO | hypobromous acid | 13517-11-8 |
| HBr2N | dibromimide | 14519-03-0 |
| HCa | calcium monohydride | 14452-75-6 |
| HCaO | calcium monohydroxide | 12177-67-2 |
| HCl | hydrogen chloride | 7647-01-0 |
| HClO | hypochlorous acid | 7790-92-3 |
| HClO4 | perchloric acid | 7601-90-3 |
| HCl2N | dichloroamine | 3400-09-7 |
| HCl3Si | trichlorosilane | 10025-78-2 |
| HCo | cobalt monohydride | 14994-20-8 |
| HCsO | caesium hydroxide | 21351-79-1 |
| HCu | copper monohydride | 13517-00-5 |
| HD | deuterium hydride | 13983-20-5 |
| HF | hydrogen fluoride | 7664-39-3 |
| HFO | hypofluorous acid | 14034-79-8 |
| HFO3S | fluorosulfonic acid | 7789-21-1 |
| HF2K | potassium hydrogen fluoride | 7789-29-9 |
| HF2N | difluoramine | 10405-27-3 |
| HF2P | difluorophosphine | 14984-74-8 |
| HF3Si | trifluorosilane | 13465-71-9 |
| HF4NP2 | imidodiphosphorous tetrafluoride | 34326-59-5 |
| HF5Si2 | pentafluorodisilane | 24628-33-9 |
| HFeO | iron monohydroxide | 12315-09-2 |
| HHg | mercury hydride | 13966-62-6 |
| HI | hydrogen iodide | 10034-85-2 |
| HIO | hypoiodous acid | 14332-21-9 |
| HI3Si | triiodosilane | 13465-72-0 |
| HK | potassium hydride | 7693-26-7 |
| HKO | potassium hydroxide | 1310-58-3 |
| HK2O | dipotassium monohydroxide | 93401-23-1 |
| HLi | lithium hydride | 7580-67-8 |
| HLiO | lithium hydroxide | 1310-65-2 |
| HLi2 | dilithium hydride | 12339-13-8 |
| HMg | magnesium monohydride | 14332-53-7 |
| HMgO | magnesium monohydroxide | 12141-11-6 |
| HMn | manganese monohydride | 14452-76-7 |
| HN | imidogen | 13774-92-0 |
| HNO | nitrosyl hydride | 14332-28-6 |
| HNOS | thionylimide | 13817-04-4 |
| HNO2 | nitrous acid | 7782-77-6 |
| HNO3 | nitric acid | 7697-37-2 |
| HN2 | dinitrogen monohydride | 36882-13-0 |
| HN3 | hydrogen azide | 7782-79-8 |
| HNa | sodium hydride | 7646-69-7 |
| HNaO | sodium hydroxide | 1310-73-2 |
| HNi | nickel monohydride | 14332-32-2 |
| HO | hydroxyl radical | 3352-57-6 |
| HORb | rubidium monohydroxide | 1310-82-3 |
| HOSr | strontium monohydroxide | 12141-14-9 |
| HO2 | hydroperoxy radical | 3170-83-0 |
| HO3P | metaphosphoric acid | 10343-62-1 |
| HO3U | hydroxydioxouranium | 61279-79-6 |
| HP | phosphinidene | 13967-14-1 |
| HPb | lead hydride | 14452-81-4 |
| HS | mercapto radical | 13940-21-1 |
| HSb | stibylene | 13940-35-7 |
| HSe | selenium monohydride | 13940-22-2 |
| HSi | silylidyne | 13774-94-2 |
| HSi2 | disilicon hydride | 102437-78-5 |
| HTe | tellurium monohydride | 13940-36-8 |
| HTi | titanium monohydride | 13776-99-3 |
| HZn | zinc monohydride | 13981-87-8 |
| HZr | zirconium hydride | 13940-37-9 |
| H2B | boron dihydride | 14452-64-3 |
| H2BO2 | dihydroxyborane | 74930-82-8 |
| H2B3FO3 | fluoroboroxin | 57372-62-0 |
| H2BaO2 | barium dihydroxide | 17194-00-2 |
| H2Be | beryllium hydride | 7787-52-2 |
| H2BeO2 | beryllium hydroxide | 13327-32-7 |
| H2BrN | bromimide | 14519-10-9 |
| H2Br2Ge | dibromogermane | 13769-36-3 |
| H2Br2Si | dibromosilane | 13768-94-0 |
| H2CaO2 | calcium dihydroxide | 1305-62-0 |
| H2ClN | chloramide | 10599-90-3 |
| H2ClSi | chlorosilyl radical | 69723-93-9 |
| H2Cl2 | hydrogen chloride dimer | 15364-23-5 |
| H2Cl2Ge | dichlorogermane | 15230-48-5 |
| H2Cl2Si | dichlorosilane | 4109-96-0 |
| H2Cs2O2 | caesium hydroxide | 12182-83-1 |
| H2CuO2 | copper hydroxide | 20427-59-2 |
| H2FN | monofluoroamine | 15861-05-9 |
| H2F2 | hydrogen fluoride dimer | 30664-12-1 |
| H2F2Ge | difluorogermane | 14986-65-3 |
| H2F2NP | phosphoramidous difluoride | 25757-74-8 |
| H2F2SSi | difluorosilane thiol | 24628-34-0 |
| H2F2Si | difluorosilane | 13824-36-7 |
| H2FeO2 | iron hydroxide | 18624-44-7 |
| H2Ge | germylene | 24968-55-6 |
| H2GeI2 | diiodogermane | 14694-31-6 |
| H2I2Si | diiodosilane | 13760-02-6 |
| H2KO | potassium dihydrogen oxide | 72414-64-3 |
| H2K2N | dipotassium amide | 126682-56-2 |
| H2K2O2 | potassium hydroxide | 12395-66-3 |
| H2Li | monolithium dihydride | 19709-52-5 |
| H2Li2O2 | lithium hydroxide | 54251-08-0 |
| H2Mg | magnesium hydride | 7693-27-8 |
| H2MgO2 | magnesium hydroxide | 1309-42-8 |
| H2MoO4 | molybdic acid | 7782-91-4 |
| H2N | amino radical | 13770-40-6 |
| H2N2 | diimide | 3618-05-1 |
| H2N2 | isodiazene | 28647-38-3 |
| H2N2O | nitrosamide | 35576-91-1 |
| H2N2O2 | hyponitrous acid | 14448-38-5 |
| H2Na2O2 | sodium hydroxide | 54251-09-1 |
| H2O | water | 7732-18-5 |
| H2O2 | hydrogen peroxide | 7722-84-1 |
| H2O2Sr | strontium hydroxide | 18480-07-4 |
| H2O4S | sulfuric acid | 7664-93-9 |
| H2O4W | tungstic acid | 7783-03-1 |
| H2P | phosphino radical | 13765-43-0 |
| H2P2 | diphosphene | 41916-72-7 |
| H2Po | dihydrogen polonide | 31060-73-8 |
| H2S | hydrogen sulfide | 7783-06-4 |
| H2S2 | dihydrogen disulfide | 13465-07-1 |
| H2Sb | stibino radical | 20346-77-4 |
| H2Se | hydrogen selenide | 7783-07-5 |
| H2Si | silylene | 13825-90-6 |
| H2Si2 | disilicon dihydride | 36835-58-2 |
| H2Te | hydrogen telluride | 7783-09-7 |
| H2Ti | titanium hydride | 7704-98-5 |
| H3Al | aluminium hydride | 7784-21-6 |
| H3As | arsine | 7784-42-1 |
| H3B | borane | 13283-31-3 |
| H3BS3 | thioboric acid | 13775-36-5 |
| H3B3O3 | boroxine | 289-56-5 |
| H3B3O6 | trihydroxy boroxine | 13460-51-0 |
| H3Bi | bismuthine | 18288-22-7 |
| H3BrGe | bromogermane | 13569-43-2 |
| H3ClGe | chlorogermane | 13637-65-5 |
| H3FGe | fluorogermane | 13537-30-9 |
| H3F3 | hydrogen fluoride trimer | 16904-65-7 |
| H3FeO3 | iron hydroxide | 1309-33-7 |
| H3Ge | germyl radical | 13765-45-2 |
| H3ISi | iodosilane | 13598-42-0 |
| H3KN | potassium trihydrogen nitride | 66098-72-4 |
| H3N | ammonia | 7664-41-7 |
| H3NO | hydroxylamine | 7803-49-8 |
| H3N2 | hydrazinyl radical | 13598-46-4 |
| H3N3 | triazene | 15056-34-5 |
| H3PO4 | phosphoric acid | 7664-38-2 |
| H3PO3 | phosphorous acid | |
| H4P2O7 | pyrophosphoric acid | |
| H3P | phosphine | 7803-51-2 |
| H3P2 | diphosphorus trihydride | 12208-07-0 |
| H3Sb | stibine | 7803-52-3 |
| H3Si | silyl radical | 13765-44-1 |
| H3Si2 | disilicon trihydride | 12135-45-4 |
| H4AlLi | lithium tetrahydroaluminate | 16853-85-3 |
| H4As2 | diarsine | 15942-63-9 |
| H4BK | potassium tetrahydroborate | 13762-51-1 |
| H4BLi | lithium tetrahydroborate | 16949-15-8 |
| H4BN | boranamine | 14720-35-5 |
| H4BNa | sodium tetrahydroborate | 16940-66-2 |
| H4B2O4 | dihydroxyborane | 13675-18-8 |
| H4BrN | ammonium bromide | 12124-97-9 |
| H4ClN | ammonium chloride | 12125-02-9 |
| H4ClNO4 | ammonium perchlorate | 7790-98-9 |
| H4F4 | hydrogen fluoride tetramer | 51912-69-7 |
| H4Ge | germane | 7782-65-2 |
| H4GeS | germanethiol | 21847-06-3 |
| H4IN | ammonium iodide | 12027-06-4 |
| H4IP | phosphonium iodide | 12125-09-6 |
| H4N | nitrogen tetrahydride | 92075-50-8 |
| H4N2 | hydrazine | 302-01-2 |
| H4O2 | water dimer | 25655-83-8 |
| H4P2 | diphosphine | 13445-50-6 |
| H4Pb | plumbane | 15875-18-0 |
| H4SSi | silanethiol | 14044-97-4 |
| H4S2 | hydrogen sulfide dimer | 33410-62-7 |
| H4Sb2 | distibane | 14939-42-5 |
| H4Si | silane | 7803-62-5 |
| H4Si2 | disilene | 15435-77-5 |
| H4Sn | stannane | 2406-52-2 |
| H5F5 | hydrogen fluoride | 74835-81-7 |
| H5NS | ammonium hydrogensulfide | 12124-99-1 |
| H5P3 | triphosphine | 13597-70-1 |
| H5Si2 | disilanyl | 73151-72-1 |
| H6B3N3 | borazine | 6569-51-3 |
| H6F6 | hydrogen fluoride | 24993-08-6 |
| H6GeSi | silylgermane | 13768-63-3 |
| H6Ge2 | digermane | 13818-89-8 |
| H6Ge2O | digermoxane | 14939-17-4 |
| H6Ge2S | digermathiane | 18852-54-5 |
| H6Ge2Se | digermaselenane | 24254-18-0 |
| H6Ge2Te | digermatellurane | 24312-07-0 |
| H6N3OP | phosphoric triamide | 13597-72-3 |
| H6OSi2 | disiloxane | 13597-73-4 |
| H6SSi2 | disilathiane | 16544-95-9 |
| H6SeSi2 | disilaselenane | 14939-45-8 |
| H6Si2 | disilane | 1590-87-0 |
| H6Sn2 | distannane | 32745-15-6 |
| H7F7 | hydrogen fluoride | 74835-82-8 |
| H8Ge3 | trigermane | 14691-44-2 |
| H8N2O4S | ammonium sulfate | 7783-20-2 |
| H8N2O4Se | ammonium selenate | 7783-21-3 |
| H8N2S | ammonium sulfide | 12135-76-1 |
| H8Si3 | trisilane | 7783-26-8 |
| H12Si5 | pentasilane | 14868-53-2 |
| HfI4 | hafnium tetraiodide | 13777-23-6 |
| HfN | hafnium mononitride | 25817-87-2 |
| HfO | hafnium monoxide | 12029-22-0 |
| HfO2 | hafnium dioxide | 12055-23-1 |
| HgI | mercury iodide | 7783-30-4 |
| HgI2 | mercury diiodide | 7774-29-0 |
| Hg2I2 | mercury iodide | 15385-57-6 |
| Hg2O4S | mercurous sulfate | 13766-44-4 |
| HoI3 | holmium triiodide | 13813-41-7 |
| HoO | holmium monoxide | 12281-10-6 |
| Ho2I6 | diholmium hexaiodide | 106229-05-4 |
| Ho2O | diholmium monoxide | 62462-59-3 |
| Ho2O2 | diholmium dioxide | 62462-60-6 |