| 中文名称 | 英文名称 | CAS号 | 化学式 |
|---|---|---|---|
| 2’,3’,5’-三乙酰肌苷 | 2',3',5'-tri-O-acetylinosine | 3181-38-2 | C16H18N4O8 |
| 2’,3’,5’-三-O-苯甲酰基-2-硫代尿苷 | 2-thio-1-(2',3',5'-tri-O-benzoyl-β-D-ribofuranosyl)-(3H)pyrimidine-2,4-dione | 21052-18-6 | C30H24N2O8S |
| 2’,3’,5’-三-O-乙酰基-2N,2N-二甲基鸟苷 | 2′,3′,5′-tri-O-acetyl-N<sup>2</sup>,N<sup>2</sup>-dimethylguanosine | 73196-87-9 | C18H23N5O8 |
| 2’,3’,4’,5’-四氟苯乙酮 | 2',3',4',5'-tetrafluoroacetophenone | 66286-21-3 | C8H4F4O |
| 2’,2’-二氟-2’-脱氧胞嘧啶核苷-3’,5’-二苯甲酸酯 | 2',2'-difluoro-2'-deoxycytidine-3',5'-dibenzoate | 134790-39-9 | C23H19F2N3O6 |
| 2’,1’,1,2-蒽并蒽 | dibenzo[<i>b,k</i>]chrysene | 217-54-9 | C26H16 |
| 2‘-三氟甲基联苯-3-羧醛 | 3-(morpholinosulfonyl)aniline | 22184-97-0 | C10H14N2O3S |
| 2β,16β-二哌啶-5α-雄甾烷-3α-醇-17-酮3-乙酸酯 | (2β,3α,5α,16β)-3-acetyloxy-2,16-di-(1-piperidinyl)androstan-17-one | 50588-23-3 | C31H50N2O3 |
| 2β-氨基-9,10,10aα,10b-四氢-10bβ-羟基-5β-异丁基-2-异丙基-8H-恶唑并[3,2-a]吡咯并[2,1-c]吡嗪-3,6(2H,5H)-二酮盐酸盐 | (2R,5S,10AS,10BS)-2-amino-5-isobutyl-10b-hydroxy-2-isopropyl-octahydro-3,6-dioxo-8H-oxazolo[3,2-a]pyrrolo[2,1-c]pyrazine hydrochloride | 24177-10-4 | C16H27N3O4*ClH |
| 2α-羟基睾酮2,17-二乙酸酯 | 2α,17β-Diacetoxy-androst-4-en-3-on | 21936-08-3 | C23H32O5 |
| 2α-甲基赤霉素A4 | 2α-methyl-GA<sub>4</sub> | 121709-23-7 | C20H26O5 |
| 2Α-羟甲基-17Β-羟基-17Α-乙炔基-雄甾-4-烯-3-酮 | 2-Hydroxymethylethisterone | 67110-85-4 | C22H30O3 |
| 2Α,6Β,23-三羟基齐墩果酸 | terminolic acid | 564-13-6 | C30H48O6 |
| 2ˊ-脱氧鸟苷-5ˊ-一磷酸 | 2'-deoxyguanosine 5'-monophosphate | 902-04-5 | C10H14N5O7P |
| 2ˊ-脱氧胞苷-3ˊ-一磷酸 | 2'-deoxycytidine 3'-monophosphate | 6220-63-9 | C9H14N3O7P |
| 2ˊ-脱氧尿嘧啶核苷-5ˊ-三磷酸四锂盐 | Tetralithium 1-[2-deoxy-5-O-({[hydroxy(phosphonatooxy)phosphoryl]oxy}phosphinato)pentofuranosyl]-2-oxo-1,2-dihydropyrimidin-4-olate | 93858-62-9 | C9H11Li4N2O14P3 |
| 2ˊ-羧基苯-(1ˊ-偶氮-2)-1,8-二羟基萘-3,6-二磺酸-(7ˊ-偶氮-1〞)-4〞-硝基苯 | Carboxynitrazo | 23156-98-1 | C23H15N5O12S2 |
| 2r,6c-二甲基-1-藜芦基-哌啶 | 2<i>r</i>,6<i>c</i>-dimethyl-1-veratryl-piperidine | 101449-96-1 | C16H25NO2 |
| 2lambda3-氯-2-甲基-1(5)-苯并硒唑 | 3-Chloro-2-methyl-1,2lambda(5)-benzoselenazole | 60940-25-2 | C8H7ClNSe+ |
| 2l4-噻吩并[3,2-c][1,2]噻嗪,2-甲基- | 2-methylthieno<3,2-c><1λ<sup>4</sup>,2>thiazine | 106183-98-6 | C7H7NS2 |
| 2beta-羟基睾酮 | 2β-hydroxytestosterone | 10390-14-4 | C19H28O3 |
| 2beta-羟基熊果酸 | 2-epi-corosolic acid | 87205-98-9 | C30H48O4 |
| 2beta-乙酰基-3alpha-甲基环氧乙烷 | 3,4-epoxy-2-pentanone | 17257-79-3 | C5H8O2 |
| 2beta,3beta-环氧-6beta,7alpha-(异亚丙基二氧基)木黎芦毒烷-5,10,16-三醇 | Deacetyllyoniol A acetonide | 28836-76-2 | C23H36O6 |
| 2beta,3beta,4alpha-三甲基氧杂环丁烷 | 2,3,4-trimethyloxetane | 53778-61-3 | C6H12O |
| 2beta,3beta,4aalpha-三羟基-1beta-甲基-8-亚甲基赤霉素烷-1alpha,10beta-二甲酸1,4alpha-内酯 | gibberellin A<sub>34</sub> | 32630-92-5 | C19H24O6 |
| 2beta,3beta,14alpha-三羟基-5beta-胆甾-7-烯-6-酮 | 22,25-Dideoxyecdysone | 7698-69-3 | C27H44O4 |
| 2alpha-甲基环丁酮 | 2-methylcyclobutanone | 1517-15-3 | C5H8O |
| 2alpha-甲基-9alpha-氟皮质醇 | 9α-Fluor-2α-methylcortisol | 432-34-8 | C22H31FO5 |
| 2alpha-溴-3-[(4-硝基苯氧基)亚氨基]-5alpha-雄甾烷-17-酮 | 2-alpha-Bromo-5-alpha-androstane-3,17-dione 3-(O-(p-nitrophenyl)oxime) | 51354-35-9 | C25H31BrN2O4 |
| 2alpha-溴-17beta-羟基-5alpha-雄甾烷-3-酮O-(4-硝基苯基)肟 | 2-alpha-Bromo-17-beta-hydroxy-5-alpha-androstan-3-one O-(p-nitrophenyl)oxime | 51354-34-8 | C25H33BrN2O4 |
| 2alpha-氯-3-[(4-硝基苯氧基)亚氨基]-5alpha-雄甾烷-17-酮 | 2-alpha-Chloro-5-alpha-androstane-3,17-dione 3-(O-(p-nitrophenyl)oxime) | 51354-33-7 | C25H31ClN2O4 |
| 2alpha-(3,4-二甲氧基苯基)-5,7-二甲氧基-3,4-二氢-2H-1-苯并吡喃-3beta-醇 | (2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether | 51079-25-5 | C19H22O6 |
| 2alpha,7beta-二氢-4-甲氧基-2alpha,7beta-二甲基-1,2-二氧四环并[3,4-b]苯并呋喃 | 2a,7b-Dihydro-4-methoxy-2a,7b-dimethyl-1,2-dioxeto(3,4-b)benzofuran | 128753-88-8 | C11H12O4 |
| 2alpha,3beta-[[(3aR,4S,7aR)-7,7alpha-二氢-4H-1,3-二氧杂环戊并[4,5-c]吡喃-3a,4(6H)-二基]二(氧基)]-11alpha,14-二羟基-12-氧代心甾-4,20(22)-二烯内酯 | Elaeodendroside A | 64144-98-5 | C29H36O10 |
| 2alpha,3beta,4beta-三羟基-2,3,4,4abeta,5,6-六氢[1,3]二氧杂环戊并[4,5-j]菲啶-6-酮 | lycoricidine | 19622-83-4 | C14H13NO6 |
| 2alpha,3beta,20beta-乌苏-delta12-烯-23beta,28-二酸2,3-二乙酸酯 | 2alpha,3beta,20beta-Urs-delta 12-ene-23beta,28-dioic acid 2,3-diacetate | 79679-46-2 | C34H50O8 |
| 2alpha,3alpha,19alpha,23-四羟基乌苏-12-烯-28-酸 | myrianthic acid | 89786-84-5 | C30H48O6 |
| 2alpha,14-二羟基-12-甲氧基苦树-12-烯-1,11,16-三酮 | picrasin G | 35598-69-7 | C21H28O7 |
| 2aH-环丁二烯并[e]茚-2a,7-二醇,1,2,3,4,4a,7,7a,7b-八氢-7a-(羟甲基)-2,2,4a-三甲基-,(2aS,4aR,7R,7aR,7bR)-(9CI) | punctaporonin E | 106673-28-3 | C15H24O3 |
| 2a-甲基-4-孕烯-3,20-二酮 | 2α-Methylprogesteron | 2636-91-1 | C22H32O2 |
| 2a-(b-D-吡喃葡萄糖基氧基)-12-甲氧基苦树-12-烯-1,11,16-三酮 | Picrasinoside A | 83543-82-2 | C27H38O11 |
| 2a,8b-二氢-环戊二烯并[cd]薁 | Tricyclo<5.4.1.0<sup>4,12</sup>>dodeca-2.5.7.9.11(1)-pentaen | 38310-40-6 | C12H10 |
| 2a,7b-二甲基-2a,7b-二氢[1,2]二噁丁并[3,4-b][1]苯并呋喃-6-基乙酸酯 | 6-Acetoxy-2a,7b-dihydro-2a,7b-dimethyl-1,2-dioxeto<3,4-b>benzofuran | 128753-91-3 | C12H12O5 |
| 2a,7b-二氢-7b-甲氧基-2a-甲基-1,2-二氧四环并(3,4-b)苯并呋喃 | 2a,7b-Dihydro-7b-methoxy-2a-methyl-1,2-dioxeto (3,4-b)benzofuran | 128753-82-2 | C10H10O4 |
| 2a,7b-二氢-7b-甲基-1,2-二氧四环并(3,4-b)苯并呋喃 | 2a,7b-Dihydro-7b-methyl-1,2-dioxeto(3,4-b)benzofuran | 128753-83-3 | C9H8O3 |
| 2a,7b-二氢-7-甲氧基-2a,7b-二甲基-1,2-二氧四环并(3,4-b)苯并呋喃 | 2a,7b-Dihydro-7-methoxy-2a,7b-dimethyl-1,2-dioxeto(3,4-b)benzofuran | 128753-87-7 | C11H12O4 |
| 2a,4a,6a-三氮杂-6b-磷酰环戊烷 | hexahydro-2a,4a,6a-triaza-6b-phospha-cyclopenta[<i>cd</i>]pentalene 6b-oxide | 71771-37-4 | C6H12N3OP |
| 2a,3a,16a,17a-双环氧雄甾-17b-羟基 5a-醋酸酯 | 2α,3α:16α,17α-diepoxy-17β-acetoxy-5α-androstane | 50588-22-2 | C21H30O4 |
| 2a,3,5,6,11a,11b-六氢-3-羟基-2a,6,10-三甲基-3-(1-甲基丙基)-6,9-环氧-2H-1,4-二氧杂环癸[cd]并环戊二烯-2,7(4ah)-二酮 | Eremantholide B | 69883-96-1 | C20H26O6 |