| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 21900-34-5 | | 3-bromo-4-chlorobenzoyl chloride | | | | |
| 21900-36-7 | | 3-tert-butylbenzoyl chloride | | | | |
| 21900-37-8 | | 2,6-dimethylbenzoyl chloride | | | | |
| 21900-39-0 | 5-氟-2-甲基苯甲酰氯 | 5-fluoro-2-methylbenzoyl chloride | C8H6ClFO | 172.59 | | |
| 21900-40-3 | | 3-chloro-6-methylbenzoyl chloride | | | | |
| 21900-41-4 | | 5-bromo-2-methylbenzoylchloride | | | | |
| 21900-42-5 | | 2,4-Dimethyl-benzoyl chloride | C9H9ClO | 168.62 | | |
| 21900-43-6 | 4-氟-2-甲基苯甲酰氯 | 4-fluoro-2-methylbenzoyl chloride | | | | |
| 21900-44-7 | | 4-chloro-2-methylbenzoyl chloride | | | | |
| 21900-45-8 | | 4-bromo-2-methylbenzoyl chloride | | | | |
| 21900-46-9 | | 2,3-Dimethyl-benzoyl chloride | C9H9ClO | 168.62 | | |
| 21900-47-0 | | 3-chloro-2-methylbenzoyl chloride | | | | |
| 21900-48-1 | | 3-bromo-2-methylbenzoyl chloride | | | | |
| 21900-50-5 | | 2-chloro-5-methylbenzoyl chloride | | | | |
| 21900-51-6 | | 2-Chloro-5-fluorobenzoyl chloride | | | | |
| 21900-52-7 | 5-溴-2-氯-苯甲酰氯 | 5-bromo-2-chloro-benzoyl chloride | | | | |
| 21900-53-8 | | 2-chloro-4-methylbenzoyl chloride | | | | |
| 21900-54-9 | | 2-chloro-4-fluorobenzoyl chloride | C7H3Cl2FO | 193.01 | | 82℃(15 t |
| 21900-55-0 | | 4-bromo-2-chlorobenzoyl chloride | | | | |
| 21900-56-1 | | 2-chloro-3-methylbenzoyl chloride | | | | |
| 21900-57-2 | | 2-chloro-3-fluorobenzoyl chloride | | | | |
| 21900-62-9 | | 4-(1-methylethyl)benzoyl chloride | C10H11ClO | 182.65 | | |
| 21900-68-5 | | 4-phenyl-1-(p-tolyl)semicarbazide | | | | |
| 21901-18-8 | 2-羟基-3-硝基-4-甲基吡啶 | 2-hydroxy-4-methyl-3-nitropyridine | | | 230-232℃ | |
| 21901-25-7 | | 2-hydrazinyl-5-methyl-3-nitropyridine | | | | |
| 21901-29-1 | | 6-amino-5-nitro-2-picoline | C6H7N3O2 | 153.14 | | |
| 21901-34-8 | 2-羟基-3-甲基-5-硝基吡啶 | 2-hydroxy-5-nitro-3-picoline | C6H6N2O3 | 154.12 | | |
| 21901-40-6 | 2-氨基-4-甲基-5-硝基吡啶 | 2-amino-4-methyl-5-nitropyridine | C6H7N3O2 | 153.14 | 223-225℃ | |
| 21901-41-7 | 2-羟基-4-甲基-5-硝基吡啶 | 2-hydroxy-4-methyl-5-nitropyridine | C6H6N2O3 | 154.12 | 186-190℃ | |
| 21901-51-9 | | benzoic acid 1-hydroxy-6-methyl-1,3-dihydro-furo(3,4-c)pyridin-7-yl ester | | | | |
| 21902-34-1 | 2-氯-4,6-二对甲苯基-1,3,5-三嗪 | 2-chloro-4,6-di-p-tolyl-1,3,5-triazine | | | | |
| 21902-37-4 | | 1,3-dichloro-7-methylisoquinoline | | | | |
| 21902-38-5 | | 1,3-dichloro-6-methylisoquinoline | | | | |
| 21902-40-9 | 1,3-二氯-5-甲基异喹啉 | 1,3-dichloro-5-methylisoquinoline | | | | |
| 21905-27-1 | | allylhydroxyphenyl-arsine oxid | | | | |
| 21905-32-8 | | hydroxy(2-hydroxypropyl)phenyl-arsine oxid | | | | |
| 21905-40-8 | | (m-chlorophenyl)hydroxy(beta-hydroxyphenethyl)-arsine oxid | | | | |
| 21905-56-6 | | methyl 2-phenoxybenzoate | C14H12O3 | 228.24 | | |
| 21905-69-1 | | 2-(4-methylphenoxy)benzoic acid | | | | |
| 21905-73-7 | 2-(2-甲氧基苯氧基)苯甲酸 | 2-(2-methoxyphenoxy)benzoic acid | | | | |
| 21905-78-2 | n-乙酰基-2-羟基吲哚 | n-acetyl-2-oxindole | | | | |
| 21905-82-8 | 3-硝基噌啉 | 3-nitrocinnoline | | | | |
| 21905-84-0 | | cinnolin-8-amine | | | | |
| 21905-86-2 | | cinnoline-4-carboxylic acid | | | 175℃ | |
| 2190515-08-1 | 苄基7-羟基-5,6-二氢咪唑并[1,2-a]吡啶-8-羧酸酯 | benzyl 7-hydroxy-5,6-dihydroimidazo[1,2-a]pyridine-8-carboxylate | | | | |
| 2190515-50-3 | 6-(苄氧基)吡唑并[1,5-a]吡啶 | 6-(benzyloxy)pyrazolo[1,5-a]pyridine | | | | |
| 2190524-46-8 | 6-(苄氧基)吡唑并[1,5-a]吡啶-7-羧酸 | 6-(benzyloxy)pyrazolo[1,5-a]pyridine-7-carboxylic acid | | | | |
| 2190524-60-6 | 6-(苄氧基)-[1,2,4]三唑并[1,5-a]吡啶 | 6-(benzyloxy)-[1,2,4]triazolo[1,5-a]pyridine | | | | |
| 21906-17-2 | | alpha,beta-dimethyl-phenethylamin | | | | |
| 21906-31-0 | | 2-bromophenylacetone | C9H9BrO | 213.07 | | |
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