| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 20417-83-8 | | 3-methyl-3-nitro-2-butanon o-(methylcarbamoyl)oxime | | | | |
| 20417-84-9 | | 2-methyl-2-nitro-cyclopentanon o-(methylcarbamoyl)oxime | | | | |
| 20417-85-0 | | 2-methyl-2-nitro-cyclohexanon o-(methylcarbamoyl)oxime | | | | |
| 20417-92-9 | | 3-methyl-3-nitro-2-norbornanon o-(methylcarbamoyl)oxime | | | | |
| 204188-85-2 | 3-苯基-2-(1h-四唑-1-基)丙酸 | 3-phenyl-2-tetrazol-1-yl-propionic acid | | | | |
| 20419-66-3 | 5-氨基-1-甲基-1h-1,2,3-三唑-4-甲酰胺 | 5-amino-1-methyl-1h-1,2,3-triazole-4-carboxamide | | | | |
| 20419-68-5 | 2,6-二氯-9-(四氢-2h-吡喃-2-基)-9h-嘌呤 | 2,6-dichloro-9-(tetrahydro-2h-pyran-2-yl)-9h-purine | | | | |
| 20419-71-0 | 7-溴-2,4-二乙氧基-5h-吡咯并[3,2-d]嘧啶-6-甲酸乙酯 | ethyl 7-bromo-2,4-diethoxy-5h-pyrrolo[3,2-d]pyrimidine-6-carboxylate | | | | |
| 20419-73-2 | 7-溴-2,4-二氧代-2,3,4,5-四氢-1h-吡咯并[3,2-d]嘧啶-6-甲酸 | 7-bromo-2,4-dioxo-2,3,4,5-tetrahydro-1h-pyrrolo[3,2-d]pyrimidine-6-carboxylic acid | | | | |
| 204190-49-8 | 4-叔丁基磺酰杯[4]芳烃 | 4-tert-butylsulfonylcalix[4]arene | | | | |
| 204190-67-0 | n2,n6-二-boc-d-赖氨酸二环己基胺盐 | n2,n6-di-boc-d-lysine dicyclohexylamine salt | | | | |
| 204191-40-2 | n-boc-l-丝氨酸 水合物 | n-boc-l-serine hydrate | | | | |
| 204191-43-5 | dl-3-叔丁基-丙氨酸 | dl-3-t-butyl-alanine | | | | |
| 204192-31-4 | boc-(3S,4S)-4-氨基-3-羟基-5-甲基己酸二环己基胺盐 | boc-(3S,4S)-4-amino-3-hydroxy-5-methylhexanoic acid dicyclohexylammonium salt | | | | |
| 204195-38-0 | boc-(3S,4S)-4-氨基-3-羟基-5-(4-苄氧基苯基)戊酸 | boc-(3S,4S)-4-amino-3-hydroxy-5-(4-benzyloxyphenyl)pentanoic acid | | | | |
| 204196-80-5 | 3-(1-四唑基)苯甲酸 | 3-(1-tetrazolyl)benzoic acid | | | | |
| 204197-26-2 | nα-boc-nβ-烯丙氧基羰基-d-2,3-二氨基丙酸二环己基铵盐 | | | | | |
| 204197-28-4 | | boc-dap(alloc)-oh dicyclohexylamine salt | C12H20N2O6.C12H23N | 469.62 | | |
| 204199-03-1 | | benzyl 4-((tert-butoxycarbonylamino)methyl)benzoate | | | | |
| 204199-15-5 | | 4,4a,5,6,7,7a,8,8a-octahydro-8a-4-methano-s-indacene-3a(1h)-carboxylic acid | | | | |
| 204199-26-8 | boc-(3S,4S,5S)-4-氨基-3-羟基-5-甲基庚酸二环己基铵盐 | boc-(3S,4S,5S)-4-amino-3-hydroxy-5-methylheptanoic acid dicyclohexylammonium salt | | | | |
| 2042-14-0 | 4-甲基-3-硝基苯酚 | 4-methyl-3-nitrophenol | C7H7NO3 | 153.1372 | 78-81℃ | |
| 2042-37-7 | 邻溴苯腈 | 2-Bromobenzonitrile | C7H4BrN | 182.0193 | 52-56℃ | 251-253℃ |
| 2042-58-2 | | bufa-20,22-dienolide, 3,12-dihydroxy-14,15-epoxy-, (3-beta,5-beta,12-beta,15-be | | | | |
| 2042-85-5 | | 1,2-diphenyl-propan-1-one | | | | |
| 2042-99-1 | | trans-1,2-di(2-naphthyl)ethylene | | | | |
| 204200-06-6 | | (S)-2-[(carboxymethyl-amino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester | | | | |
| 204203-14-5 | | 2,6-Bis[1-(2,6-di-i-propylphenylimino)ethyl]pyridine | | | | |
| 204203-16-7 | 2,6-双[1-[(2,6-二甲基苯基)亚氨基]乙基]吡啶 | 2,6-bis[1-[(2,6-dimethylphenyl)imino]ethyl]pyridine | | | | |
| 204205-33-4 | 2-溴-2-(2-氟苯基)-1-环丙基乙酮 | 2-bromo-2-(2-fluorophenyl)-1-cyclopropylethanone | | | | |
| 204205-90-3 | 2-(1-(4-氯苄基)-1h-吲哚-3-基)-2-氧代-n-(吡啶-4-基)乙酰胺 | 2-(1-(4-chlorobenzyl)-1h-indol-3-yl)-2-oxo-n-(pyridin-4-yl)acetamide | | | | |
| 20421-10-7 | | 10a- hexahydro-9-hydroxy-5-methoxy-10 | C17H14O8 | 346.29 | | |
| 20421-20-9 | | Crotepoxide iodohydrin | C18H19IO8 | 490.24 | | |
| 20422-16-6 | | 1,1-dimethylhexahydro-1h-azepiniu bromide | | | | |
| 2042201-16-9 | | nm-2201 solution | | | | |
| 2042201-18-1 | [4,4'-双(1,1-二甲基乙基)-2,2'-联吡啶]双[3,5-二氟-2-(5-氟-2-吡啶基)苯基]六氟磷酸铱 | [4,4'-bis(1,1-dimethylethyl)-2,2'-bipyridine]bis[3,5-difluoro-2-(5-fluoro-2-pyridinyl)phenyl]iridium hexafluorophosphate | | | | |
| 20423-87-4 | | meladrazine (+)-tartrate | | | | |
| 20423-99-8 | | deprodone | | | | |
| 20424-00-4 | | deprodone propionate | | | | |
| 20424-95-7 | | fluoro-acetic aci copper(ii) salt | | | | |
| 204244-77-9 | | l-arginine:hcl (d7, 98%) | | | | |
| 204244-81-5 | 正十四烷d30 | n-tetradecane-d30 | | | | |
| 204244-83-7 | | testosterone (1,2-d2, 98%) | | | | |
| 204244-84-8 | | hexyl-d13 alcohol | | | | 156.5℃ |
| 204245-65-8 | 反式-3-[4-(boc-氨基)环己基]丙酸 | trans-3-[4-(boc-amino)cyclohexyl]propionic acid | | | | |
| 204246-17-3 | n-fmoc-d-天冬氨酸 1-烯丙基酯 | n-fmoc-d-aspartic acid 1-allyl ester | | | | |
| 20425-39-2 | | pyresmetrin | | | | |
| 20425-54-1 | | acetic acid(R)-3,7-dimethyloct-6-enyl ester | C12H22O2 | 198.30 | | |
| 20425-72-3 | | 226-radon(ii) chloride | | | | |
| 204251-24-1 | | n-(9-fluorenylmethoxycarbonyl)-l-glutamic acid gamma-tert-butyl ester monohydrate | C24H27NO6.H2O | 443.49 | 86-89℃ | |
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