| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 2H-环戊并(b)呋喃-2-酮 | cyclohepta[b]furan-2(2H)-one | 4481-35-0 | C9H6O2 |
| 2H-环戊二烯并[d]异噻唑并[5,4-b]吡啶(9CI) | 2H-Cyclopenta[d][1,2]oxazolo[5,4-b]pyridine | 89212-63-5 | C9H6N2O |
| 2H-环戊二烯并[d]嘧啶 | 2H-Cyclopenta[d]pyrimidine | 270-97-3 | C7H6N2 |
| 2H-环戊二烯并[c]吡啶,3,4-二氢-2,4-二甲基- | cyclopenta<c>tetrahydropyridine | 129435-52-5 | C10H13N |
| 2H-环戊二烯并[b]异噻唑并[4,5-e]吡啶(9CI) | 3-(4-azidobutyryloxy)-diltiazem | 124305-98-2 | C24H29N5O4S |
| 2H-环戊二烯并[b]噻吩,2,2,3-三氟-4,5,6,6a-四氢- | 2,2,3-Trifluoro-4,5,6,6a-tetrahydrocyclopenta(b)thiophene | 102571-05-1 | C7H7F3S |
| 2H-环戊二烯并[b]呋喃-4-甲腈,5-[[(1,1-二甲基乙基)二甲基甲硅烷基]氧代]-2-乙氧基六氢- | (3aR,4S,5R,6aS)-5-(tert-Butyl-dimethyl-silanyloxy)-2-ethoxy-hexahydro-cyclopenta[b]furan-4-carbonitrile | 104015-22-7 | C16H29NO3Si |
| 2H-环戊二烯并[b]吡啶-2-酮,八氢-4-甲基-,[4S-(4-α-,4a-bta-,7a-bta-)]-(9CI) | (4S,4aS,7aS)-4-Methyl-octahydro-[1]pyrindin-2-one | 179913-89-4 | C9H15NO |
| 2H-环戊二烯并[b][1,2]恶唑并[4,5-e]吡啶 | 2H-Cyclopenta[b][1,2]oxazolo[4,5-e]pyridine | 72229-98-2 | C9H6N2O |
| 2H-环戊二烯并[3,4]吡唑并[1,5-a]吡嗪 | 6H-Cyclopenta[3,4]pyrazolo[1,5-a]pyrazine | 117024-64-3 | C9H7N3 |
| 2H-环庚并[d]嘧啶 | 2H-Cyclohepta[d]pyrimidine | 30735-87-6 | C9H8N2 |
| 2H-环五噁唑-2-酮,六氢-4,5-二羟基-6-(羟甲基)-,3aR-(3a.α.,4.α.,5.β.,6.α.,6a.α.)- | (3aR,4R,5R,6R,6aS)-4,5-dihydroxy-6-(hydroxymethyl)-3,3a,4,5,6,6a-hexahydrocyclopenta[d][1,3]oxazol-2-one | 138395-78-5 | C7H11NO5 |
| 2H-环七吡嗪-2-酮,1,5,6,7,8,9-六氢-1-羟基-(9CI) | Carbazochrome sulfonic acid | 942468-12-4 | C10H12N4O5S |
| 2H-氮杂环丁烷并[1,2-f]蝶啶 | 5H-azeto[1,2-f]pteridine | 113688-15-6 | C8H6N4 |
| 2H-氮杂环丁烷并[1,2-a]环戊二烯并[c]吡咯 | 2H-Azeto[1,2-a]cyclopenta[c]pyrrole | 155869-00-4 | C9H7N |
| 2H-氮杂环丁烷并[1,2-a][1,3]恶唑并[5,4-e]吡啶 | 2H-Azeto[1,2-a][1,3]oxazolo[5,4-e]pyridine | 173430-89-2 | C8H6N2O |
| 2H-氮杂卓 | 2H-Azepin | 291-68-9 | C6H7N |
| 2H-氮丙啶 | Δ<sup>1</sup>-azirine | 157-16-4 | C2H3N |
| 2H-异喹啉-1-硫酮 | 1-Mercaptoisochinolin | 4702-25-4 | C9H7NS |
| 2H-异吲哚-4,7-二酮,2-甲基-1,3,5-三苯基- | 2-Methyl-1,3,4-triphenyl-2H-isoindole-4,7-dione | 108046-77-1 | C27H19NO2 |
| 2H-异吲哚-2-乙酸,1,3-二氢-1,3-二羰基-a-丙基- | N-phthalyl-(RS)-norvaline | 19506-88-8 | C13H13NO4 |
| 2H-异吲哚-2-乙酰胺,1,3-二氢-a-甲基-N-(4-甲基苯基)-1,3-二羰基- | 2-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-N-p-tolyl-propionamide | 140244-40-2 | C18H16N2O3 |
| 2H-异吲哚-2-乙胺,1,3,3a,4,7,7a-六氢-N,N,5-三甲基-,(3aR,7aS)-rel- | N-(2-Methylpyrimidin-4-yl)phosphoramidic dichloride | 801199-53-1 | C5H6Cl2N3OP |
| 2H-异吲哚-1-羧酸甲酯 | methyl (2H)-isoindole-1-carboxylate | 56365-71-0 | C10H9NO2 |
| 2H-异吲哚-1-羧酸 | 2H-isoindole-1-carboxylic acid | 109839-13-6 | C9H7NO2 |
| 2H-异吲哚 | 2H-isoindole | 270-68-8 | C8H7N |
| 2H-四唑-5-重氮 | 1<i>H</i>-tetrazole-5-diazonium | 2260-28-8 | CHN6 |
| 2H-四唑-5-甲醇 | (2H-tetraazol-5-yl)methanol | 80251-76-9 | C2H4N4O |
| 2H-四唑-2-胺,5-苯基-N-[3-(三甲基甲硅烷基)-2-炔丙基]- | (5-Phenyl-tetrazol-2-yl)-(3-trimethylsilanyl-prop-2-ynyl)-amine | 139697-48-6 | C13H17N5Si |
| 2H-四唑-2-戊酰胺,N-[(2-甲基苯基)磺酰]-5-[4-(4-苯基丁氧基)苯基]- | N-<(2-methylphenyl)sulfonyl>-5-<4-(4-phenylbutoxy)phenyl>-2H-tetrazole-2-pentanamide | 138631-18-2 | C29H33N5O4S |
| 2H-四唑-2-戊腈,5-[4-(4-苯基丁氧基)苯基]- | 5-<4-(4-phenylbutoxy)phenyl>-2H-tetrazole-2-pentanenitrile | 138631-09-1 | C22H25N5O |
| 2H-四唑-2-乙酰腈,5-氨基- | 5-amino-2-(cyanomethyl)-2H-tetrazole | 125707-89-3 | C3H4N6 |
| 2H-四唑,5-环丙基-2-(3-碘-2-炔丙基)- | 5-Cyclopropyl-2-(3-iodo-prop-2-ynyl)-2H-tetrazole | 106191-87-1 | C7H7IN4 |
| 2H-四唑,5-[(2-氯苯基)甲基]- | (5-Isothiocyanato-1,3-dioxo-1H,3H-benzo[de]isoquinolin-2-yl)-acetic acid | 103904-10-5 | C15H8N2O4S |
| 2H-噻癸英,4,5,8,9-四脱氢-3,10-二氢- | 1-Thiacyclodec-6-en-4,8-diyne | 136843-31-7 | C9H8S |
| 2H-噻喃-6-甲腈,3,4-二甲基- | 6-Cyano-3,4-dimethyl-2H-thiopyran | 128080-77-3 | C8H9NS |
| 2H-噻喃-4-乙酸,四氢-4-羟基-a-苯基-,2-(二甲氨基)乙基酯,盐酸(1:1) | 2H-Thiopyran-4-acetic acid, tetrahydro-4-hydroxy-alpha-phenyl-, 2-(dimethylamino)ethyl ester, hydrochloride | 102367-44-2 | C17H26ClNO3S |
| 2H-噻喃-3-甲醛,四氢-2-羰基- | α-Aldehydo-δ-valero-thiollacton | 89533-72-2 | C6H8O2S |
| 2H-噻喃-3(6H)-酮 | 3,6-Dihydro-2H-thiopyran-3-on | 29431-30-9 | C5H6OS |
| 2H-噻喃-2-羧酸,四氢 | 2-thiacyclohexanecarboxylic acid | 53916-77-1 | C6H10O2S |
| 2H-噻喃-2-硫酮,3,5-二甲基- | dimethyl-3,5 thiopyrannethione-2 | 15402-33-2 | C7H8S2 |
| 2H-噻喃-2,6(3H)-二酮,二氢- | glutaric thioanhydride | 168280-79-3 | C5H6O2S |
| 2H-噻喃,四氢-2-丙基- | 2-Propyl-pentamethylensulfid | 17912-23-1 | C8H16S |
| 2H-噻喃,2-乙基四氢- | 2-Aethyl-pentamethylensulfid | 1613-52-1 | C7H14S |
| 2H-噻吩并[4,3,2-cd]-1,2-苯并异噻唑(9CI) | 1-Piperazineethanol, 4-(3-(7-azido-2-(trifluoromethyl)-10H-phenothiazin-10-yl)propyl)- | 83016-32-4 | C22H25F3N6OS |
| 2H-噻吩并[4,3,2-Cd][1,2]苯并恶唑 | 2H-Thieno[4,3,2-cd][1,2]benzoxazole | 218929-36-3 | C8H5NOS |
| 2H-噌啉-3-酮 | 3(2H)-cinnolinone | 31777-46-5 | C8H6N2O |
| 2H-嘧啶并[5,4-e][1,3]恶嗪 | 2H-Pyrimido[5,4-e][1,3]oxazine | 142834-76-2 | C6H5N3O |
| 2H-嘧啶并[5,4-d][1,3]恶嗪 | 2h-Pyrimido[5,4-d][1,3]oxazine | 42394-54-7 | C6H5N3O |
| 2H-嘧啶并[4,5-A]咔唑-2-酮,1,11-二氢-8-溴- | 2H-Pyrimido[4,5-a]carbazol-2-one, 8-bromo-1,11-dihydro- | 1499223-18-5 | C14H8BrN3O |