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    中文名称 英文名称 CAS号 化学式
    2’-O-甲基-5-甲基尿苷 2'-O-Methyl-5-methyluridine 55486-09-4 C11H16N2O6
    2’,5’-二氯苯甲酰基乙酸甲酯 methyl 3-(2,5-dichlorophenyl)-3-oxopropanoate 56719-68-7 C10H8Cl2O3
    2’,4-二氯-2-氨基二苯醚 5-chloro-2-(2-chloro-phenoxy)-aniline 56966-48-4 C12H9Cl2NO
    2’,3’-异亚丙基三氮唑核苷 2',3'-Isopropylidene Ribavirin 52663-90-8 C11H16N4O5
    2’,3’-二脱氢-2’,3’-二脱氧尿苷 2',3'-dideoxy-2',3'-didehydrouridine 5974-93-6 C9H10N2O4
    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
    2Α,6Β,23-三羟基齐墩果酸 terminolic acid 564-13-6 C30H48O6
    2beta,3beta,4alpha-三甲基氧杂环丁烷 2,3,4-trimethyloxetane 53778-61-3 C6H12O
    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
    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
    2S-苄氧羰酰氨基-4-氧代-丁酸苄酯 benzyl (2S)-2-{[(benzyloxy)carbonyl]amino}-4-oxobutanoate 58578-45-3 C19H19NO5
    2S-N-Cbz-高丝氨酸二环己胺盐 dicyclohexylammonium (2S)-2-(benzyloxycarbonylamino)-4-hydroxybutyrate 58578-43-1 C12H15NO5*C12H23N
    2H-萘并[1,8-bc]呋喃-2-酮 1,8-naphtholactone 5247-85-8 C11H6O2
    2H-苯并吡喃-3-甲酸乙酯 ethyl 2H-chromene-3-carboxylate 57543-58-5 C12H12O3
    2H-苯并[b][1,4]噁嗪-4(3H)-胺盐酸盐 4-amino-3,4-dihydro-2H-1,4-benzoxazine hydrochloride 51512-01-7 C8H10N2O*ClH
    2H-色烯-3-甲醛 2H-chromene-3-carbaldehyde 51593-69-2 C10H8O2
    2H-色烯-3-甲腈 2H-chromene-3-carbonitrile 57543-66-5 C10H7NO
    2H-环戊并[b]呋喃-2-酮,5-(苯甲酰氧基)六氢-4-[(1E,3S)-3-羟基-5苯基-1-戊烯-1-基]-,(3aR,4R,5R,6aS)- (3aR,4R,5R,6aS)-4-[(1E,3S)-3-hydroxy-5-phenylpent-1-en-1-yl]-2-oxo-hexahydro-2H-cyclopenta[b]furan-5-yl benzoate 55444-68-3 C25H26O5
    2H-环戊并[b]呋喃-2-酮,5-(苯甲酰氧基)-4-[(1E,3S)-3-[[(1,1'-二甲基乙基)二甲基硅烷基]氧基]-1-辛烯-1-基]六氢-,(3aR,4R,5R,6aS)- [(3aR,4R,5R,6aS)-4-[(3S)-3-[tert-butyl(dimethyl)silyl]oxyoct-1-enyl]-2-oxo-3,3a,4,5,6,6a-hexahydrocyclopenta[b]furan-5-yl] benzoate 587869-81-6 C28H42O5Si
    2H-环戊并[b]呋喃-2-酮,5-(苯甲酰氧基)-4-[(1E)-4,4-二氟-3-氧代-1-辛烯-1-基]六氢-,(3aR,4R,5R,6aS)- (3aR,4R,5R,6aS)-4-((E)-4,4-difluoro-3-oxooct-1-enyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate 50889-48-0 C22H24F2O5
    2H-环戊并[B]呋喃-2-酮,4-[(1E,3R)-4-(3-氯苯氧基)-3-羟基-1-丁烯-基]六氢-5-羟基-,(3AR,4R,5R,6AS)-(...) (3aR,4R,5R,6aS)-4-((R,E)-4-(3-chlorophenoxy)-3-hydroxybut-1-enyl)-5-hydroxyhexahydro-2H-cyclopenta[b]furan-2-one 53906-54-0 C17H19ClO5
    2H-异吲哚-1-羧酸甲酯 methyl (2H)-isoindole-1-carboxylate 56365-71-0 C10H9NO2
    2H-四唑e-5-丙胺 1H-Tetrazole-5-propanamine 56217-93-7 C4H9N5
    2H-四唑,5-[(3-溴苯基)甲基]- D-Glycero-D-ido-heptono-delta-lactone 52085-70-8 C7H12O7
    2H-噻喃-2-羧酸,四氢 2-thiacyclohexanecarboxylic acid 53916-77-1 C6H10O2S
    2H-吲唑-2-基乙酸 (indazol-2-yl)acetic acid 58037-05-1 C9H8N2O2
    2H-吡喃-2-酮 pyran-2-one 504-31-4 C5H4O2
    2H-吡喃-2,6(3H)-二酮 2H-pyran-2,6(3H)-dione 5926-95-4 C5H4O3
    2H-吡咯-5-胺,2-亚氨基-3,4-二甲基- 3β-methoxyolean-18-ene 5945-45-9 C31H52O
    2H-吡咯-5-胺,2,2-二氟-3,4-二氢- (Dihydro-3,3-diphenyl-(3H)-furan-2-ylidene)dimethylammonium iodide 50294-58-1 C18H24I2N2O
    2H-全氟-5,8,11,14,17-五甲基-3,6,9,12,15,18-六氧杂廿一烷 3,6,9,12,15,18-Hexaoxaheneicosane, 1,1,1,2,4,4,5,7,7,8,10,10,11,13,13,14,16,16,17,19,19,20,20,21,21,21-hexacosafluoro-5,8,11,14,17-pentakis(trifluoromethyl)- 55154-18-2 C20HF41O6
    2H-1-苯并吡喃-3-羧醛, 7-(二乙基氨基)-2-氧代- 7-diethylaminocoumarine-3-aldehyde 57597-64-5 C14H15NO3
    2H-1,4-苯并噁嗪-3(4H)-酮 (2H)-1,4-benzoxazin-3(4H)-one 5466-88-6 C8H7NO2
    2H-1,2-恶嗪,6-乙烯基-3,6-二氢-2-苯基 6-Pentofuranosyl-2-phenyl[1,3]oxazolo[5,4-d]pyrimidin-7(6h)-one 53641-68-2 C16H15N3O6
    2H,4H-2-氨基[3,5-二甲基吡唑-1-基]羰基甲基-3-氧代-1,4-苯并噻嗪 2H,4H-2-amino[3,5-dimethylpyrazol-1-yl]carbonylmethyl-3-oxo-1,4-benzothiazine 562071-64-1 C15H15N3O2S
    2H,2H-全氟辛酸 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctanoic acid 53826-12-3 C8H3F13O2
    2ALPHA,19ALPHA,23-三羟基齐墩果酸 2α,3β,19α,23-tetrahydroxyolean-12-en-28-oic acid 58880-25-4 C30H48O6
    29-(异辛基苯氧基)-3,6,9,12,15,18,21,24,27-九氧杂二十九烷醇 29-(Isooctylphenoxy)-3,6,9,12,15,18,21,24,27-nonaoxanonacosanol 58253-61-5 C34H62O11
    28-去甲羽扇-17(22)-烯 28-norlup-17(22)-ene 53767-52-5 C29H48
    26,27-二去甲麦角甾-5-烯-3beta-醇苯甲酸酯 26,27-Dinorergost-5-EN-3-OL (3-beta) 58003-48-8 C33H48O2
    25,28-二-表-杯苋甾酮 Isocyasterone 54082-42-7 C29H44O8
    24-羟基维他命D3 24-Hydroxyvitamin D3 56720-87-7 C27H44O2
    24-羟基维他命D2 24-Hydroxyvitamin D2 58050-56-9 C28H44O2
    24-羟基-22beta-[[(Z)-2-甲基-1-氧代-2-丁烯基]氧基]-3-氧代-齐墩果-12-烯-28-酸 (4R,4aS,6aR,6aS,6bR,9S,12aR,14bR)-9-(hydroxymethyl)-2,2,6a,6b,9,12a-hexamethyl-4-[(E)-2-methylbut-2-enoyl]oxy-10-oxo-3,4,5,6,6a,7,8,8a,11,12,13,14b-dodecahydro-1H-picene-4a-carboxylic acid 561-47-7 C35H52O6
    24-去甲-5beta-胆烷-23-酸 24-nor-5β-cholanoic acid 511-18-2 C23H38O2
    24-二羟基-135-均苯三甲醛 2,4-dihydroxybenzene-1,3,5-tricarbaldehyde 58343-11-6 C9H6O5
    24,25-二羟基维他命D2 (24R)-24,25-dihydroxyvitamin D<sub>2</sub> 58050-55-8 C28H44O3