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中文名称 英文名称 CAS号 化学式
2,4,4-三甲基-1,3-恶唑-5(4H)-酮 2,4,4-trimethyl-4<i>H</i>-oxazol-5-one 24503-23-9 C6H9NO2
2,4,4-三氟-2-(三氟甲基)-4H-1,3-苯并二氧杂环己烷 2,4,4-Trifluor-2-trifluormethyl-1,3-benzodioxan 25857-80-1 C9H4F6O2
2,4,4,6-四甲基-1-氧杂-3-氮杂-2-环己烯 2,4,4,6-tetramethyl-5,6-dihydro-4H-1,3-oxazine 26939-18-4 C8H15NO
2,4,4,6-四氯-2,5-环己二烯-1-酮 2,4,4,6-tetrachlorocyclohexa-2,5-dien-1-one 20244-55-7 C6H2Cl4O
2,4,4,5,7,7,8,10,10,11,13,13,14,16,16,17,17,18,18,18-二十氟-2,5,8,11,14-五(三氟甲基)-3,6,9,12,15-五氧杂十八烷-1-醇 1H,1H-perfluoro(2,5,8,11,14-pentamethyl-3,6,9,12,15-oxaoctadecan-1-ol) 27617-34-1 C18H3F35O6
2,4,4,5,5-五氟-2-(三氟甲基)-1,3-恶噻戊环3,3-二氧化物 2,4,4,5,5-pentafluoro-2-trifluoromethyl-3-oxathiolane-1,1-dioxide 26954-17-6 C4F8O3S
2,4,2’,4’-四硝基二苯胺 bis(2,4-dinitrophenyl)amine 2908-76-1 C12H7N5O8
2,4(1H,3H)-嘧啶二酮4-(O-甲基肟) N4-methoxycytosine 20555-89-9 C5H7N3O2
2,4(1H,3H)-嘧啶二酮,5-甲基-1-(2,3,5-三-O-苯甲酰-b-L-呋喃核糖基)- 2',3',5'-tri-O-benzoyl-5-methyl-L-uridine 237060-98-9 C31H26N2O9
2,4'-滴滴涕-D8 2,4'-Dichlorodiphenyltrichloroethane-d8 221899-88-3 C14H9Cl5
2,4'-偶氮甲苯 2-methyl-4’-methylazobenzene 29418-22-2 C14H14N2
2,4'-二羟基二苯甲烷 2-[(4-hydroxyphenyl)methyl]phenol 2467-03-0 C13H12O2
2,4'-二甲氧基-4-甲基二苯醚 2,4'-dimethoxy-4-methyldiphenyl ether 23990-91-2 C15H16O3
2,4'-二氨基二苯砜 2.4'-Sulfonylbis(benzolamin) 27147-69-9 C12H12N2O2S
2,4 -二甲基戊二酸 2,4-dimethylglutaric acid 2121-67-7 C7H12O4
2,3二氟-4-羟基苯甲酸甲酯 methyl 2,3-difluoro-4-hydroxybenzoate 219685-84-4 C8H6F2O3
2,3’-二氯联苯 2,3'-dichloro-1,1'-biphenyl 25569-80-6 C12H8Cl2
2,3’,4,5’-四甲氧基二苯乙烯 (E)-3,5,2',4'-tetramethoxystilbene 24144-92-1 C18H20O4
2,3:5,6-二-O-亚环己基1-O-(苯基甲基)-D-肌醇 2,3:5,6-Di-O-cyclohexylidene-1-O-(phenylmethyl)-D-myo-inositol 23393-20-6 C25H34O6
2,3:5,6-二-O-(1-甲基亚乙基)-D-塔洛糖酸GAMMA-内酯 2,3,5,6-di-O-isopropylidene-L-gulono-1,4-lactone 23262-80-8 C12H18O6
2,3-辛二醇 2,3-octanediol 20653-90-1 C8H18O2
2,3-萘醛花青苷 naphthalocyanine 23627-89-6 C48H26N8
2,3-萘酞菁钴 2,3-naphthalianine, cobalt complex 26603-20-3 C48H24CoN8
2,3-萘二羧酸 naphthalene-2,3-dicarboxylic acid 2169-87-1 C12H8O4
2,3-苯并咔唑 2,3-benzocarbazole 243-28-7 C16H11N
2,3-苯并呋喃 1-benzofurane 271-89-6 C8H6O
2,3-脱氢水飞蓟宾A 2,3-dehydrosilybin 25166-14-7 C25H20O10
2,3-联噻吩 2,3'-bithienyl 2404-89-9 C8H6S2
2,3-环氧丙基降莰烷 2,3-epoxynorbornane 278-74-0 C7H10O
2,3-环氧丙基-4-甲氧基苯基醚 2,3-epoxypropyl p-methoxyphenyl ether 2211-94-1 C10H12O3
2,3-环氧丁香油酚甲基醚 1,2-epoxy-3-(3,4-dimethoxyphenyl)propane 27602-80-8 C11H14O3
2,3-环氧丁酸钠 sodium 2,3-epoxybutyrate 25957-46-4 C4H5O3*Na
2,3-环氧-5-乙烯基降冰片烷 exo-3-oxa-5-vinyl-tricyclo[3.2.1.02.4]octane 2886-87-5 C9H12O
2,3-环氧-3-甲基环己醇 2,3-epoxy-3-methylcyclohexanol 221635-45-6 C7H12O2
2,3-环氧-3,7,11-三甲基十二碳-10-烯酸乙酯 Ethyl 2,3-epoxy-3,7,11-trimethyldodec-10-enoate 23307-95-1 C17H30O3
2,3-环氧-2-乙基-环戊酮 2,3-Epoxy-2-ethyl-cyclopentanon 21891-35-0 C7H10O2
2,3-环氧-1,1,4,12-四甲基全氢-7,8alpha-乙桥苯并[f]薁-4,9,10,10a,12-五醇 Lyoniol B 28894-74-8 C20H32O6
2,3-庚二醇 cis-2,3-heptanediol 21508-07-6 C7H16O2
2,3-壬二烯 nona-2,3-diene 22433-34-7 C9H16
2,3-喹喔啉二甲醇二乙酸酯 2,3-Bis-(acetoxymethyl)-chinoxalin 20128-12-5 C14H14N2O4
2,3-吡啶二羧酸-3-甲酯 pyridine-2,3-dicarboxylic acid 3-methyl ester 24195-02-6 C8H7NO4
2,3-双[(4-羟基-3-甲氧基苯基)甲基]丁烷-1,4-二醇 (+/-)-secoisolariciresinol 29388-59-8 C20H26O6
2,3-双-(2-吡啶)-5,6-二氢吡嗪 2,3-bis(2'-pyridyl)-5,6-dihydropyrazine 25005-95-2 C14H12N4
2,3-双(苯基磺酰基)-1-丙烯 2,3-bis(phenylsulfonyl)-1-propene 2525-55-5 C15H14O4S2
2,3-双(溴甲基)吡嗪 2,3-bis(bromomethyl)pyrazine 282528-30-7 C6H6Br2N2
2,3-双(氯甲基)萘 2,3-bis(chloromethyl)naphthalene 2744-60-7 C12H10Cl2
2,3-双(氯甲基)吡啶盐酸盐 2,3-bis(chloromethyl)pyridine hydrochloride 27221-49-4 C7H7Cl2N*ClH
2,3-双(4-甲氧基苯基)丁烷-2,3-二醇 2,3-bis(4-methoxyphenyl)butane-2,3-diol 21985-99-9 C18H22O4
2,3-双(2-甲氧基苯基)丁烷-2,3-二醇 2,3-Dihydroxy-2,3-di-(2-methoxy-phenyl)-butan 22800-72-2 C18H22O4
2,3-双(2,4,5-三甲基-3-噻吩基)马来酰亚胺 2,3-bis(2,4,5-trimethyl-3-thienyl)maleimide 220191-36-6 C18H19NO2S2