| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 2127839-79-4 | 水合钼酸铵 (para) | ammonium molybdate (para) hydrate | | | | |
| 21279-07-2 | | 4,4'-vinylenebis(1-methylpyridinium tetrafluoroborate) | | | | |
| 21279-13-0 | | dipyrido[2,1-b:1￥,2￥-j][3,8]phenanthrolinediium bistetrafluoroborate | C20H14B2F8N2 | 455.95 | | |
| 21279-16-3 | | (2-Diethylaminoethanolato)copper(II)bromide | C12H28Br2Cu2N2O2 | 519.26 | | |
| 21279-23-2 | | (±)Acetato(5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane)-nickel(II)perchlorate | C18H38ClN4NiO6 | 500.66 | | |
| 21279-52-7 | | 2-(4-(3,4-(methylenedioxy)phenethyl)-1-piperazinyl)-pyrimidin dihydrochlori | | | | |
| 21279-57-2 | 1-(2-嘧啶基)高哌嗪 | 1-(2-pyrimidinyl)homopiperazine | | | | |
| 21279-62-9 | 3-氯吡嗪-2-甲酰胺 | 3-chloropyrazine-2-carboxamide | | | | |
| 21279-64-1 | 5-氯吡嗪-2-甲酰胺 | 5-chloropyrazine-2-carboxamide | | | | |
| 21279-77-6 | 1-(3-氯丙基)-4-(2-甲氧基苯基)-哌嗪二盐酸盐 | 1-(3-chloropropyl)-4-(2-methoxyphenyl)-piperazine x 2 hcl | | | | |
| 21279-79-8 | | 1-(3-chloropropyl)-4-(p-methoxyphenyl)-piperazin | | | | |
| 21279-96-9 | | 4,6-dimethyl-2-(4-piperonyl-1-piperazinyl)-pyrimidin dihydrochloride | | | | |
| 21279-99-2 | | 2-amino-4-(4-piperonyl-1-piperazinyl)-pyrimidin | | | | |
| 2128-45-2 | | dodecyltris(3-fluorophenyl)silane | | | | |
| 2128-60-1 | | spiro(2,5-cyclohexadiene-1,7'-1'h-cyclopent(ij)isoquinolin)-4-one, 2',3',8',8'a | | | | |
| 2128-78-1 | | alpha-phenyl-alpha-(3-(1-pyrrolidinyl)-1-propynyl)-3-pyridinemethano | | | | |
| 2128-79-2 | | alpha-(3-(diethylamino)-1-propynyl)-alpha-phenyl-4-pyridinemethano | | | | |
| 2128-80-5 | | alpha-phenyl-alpha-(3-(1-pyrrolidinyl)-1-propynyl)-4-pyridinemethano | | | | |
| 2128-88-3 | | 1,1'-(1,4-phenylenebis(methylene)bis(n,n-diethyl-3-piperidinecarboxamid dih | | | | |
| 2128-93-0 | 4-苯基二苯酮 | (1,1'-biphenyl)-4-yl phenyl-methanon | C19H14O | 258.32 | 99-103℃ | 419-420℃ |
| 21280-03-5 | | 2-(4-piperonyl-1-piperazinyl)-s-triazin dihydrochloride | | | | |
| 21280-05-7 | | 2,4-dimethoxy-6-(4-piperonyl-1-piperazinyl)-s-triazin monohydrochloride | | | | |
| 21280-07-9 | | quinazoline, 4-(4-piperonyl-1-piperazinyl)-, dihydrochloride, hydrate | | | | |
| 21280-10-4 | | 2-(hexahydro-4-piperonyl-1h-1,4-diazepin-1-yl)-pyrimidin | | | | |
| 21280-11-5 | | pyrimidine, 2-(methyl(2-(methylpiperonylamino)ethyl)amino)-, hydrochloride, hyd | | | | |
| 21280-12-6 | | 1-methyl-1-piperonyl-4-(2-pyrimidinyl)-piperaziniu iodide | | | | |
| 21280-13-7 | | 2-(4-(1,4-benzodioxan-6-ylmethyl)-1-piperazinyl)-pyrimidin monohydrochlorid | | | | |
| 21280-17-1 | | 4-(4-piperonyl-1-piperazinyl)-pyrimidin dihydrochloride | | | | |
| 21280-23-9 | | 5-chloro-2-(4-piperonyl-1-piperazinyl)-pyrimidin | | | | |
| 21280-29-5 | 六氢-3,5,5-三甲基-3,8A-亚乙基-8AH-1-苯并吡喃-2-酮 | 8a-Ethano-8aH-1-benzopyran-2(3H)-one, hexahydro-3,5,5-trimethyl-3 | C14H22O2 | | | |
| 21280-30-8 | | 1-methyl-4-(4-methyl-3-pentenyl)-3-cyclohexene-1-carboxylic aci methyl este | | | | |
| 21280-40-0 | 1-金刚烷磺酸甲酯 | | | | | |
| 21280-43-3 | | adamantane-1-sulfinyl chloride | | | | |
| 21282-08-6 | | l-pyroglutamyl-l-alanine | C8H12N2O4 | 200.19 | | |
| 21282-39-3 | | 1-(butyl(2-morpholinoethyl)amino)-3-(2,4-dichlorophenoxy)-2-propano dihydro | | | | |
| 21282-43-9 | | 4,4'-(2,2,2-trichloroethylidene)di-m-creso | | | | |
| 21282-44-0 | | 4,4'-(2,2,2-trichloroethylidene)bis(2-isopropyl-pheno | | | | |
| 21282-65-5 | | 2-[(morpholin-4-ylcarbonyl)amino]benzoic acid | | | | |
| 21282-88-2 | | alpha,alpha-diphenyl-beta,3,5-trimethyl-4-morpholinepropano methane sulfona | | | | |
| 21282-96-2 | | acetoacetic acid, 2-hydroxyethylacrylate ester | | | | |
| 21282-97-3 | 3-氧(代)丁酸-2-[2-甲基-2-丙烯酰基)氧]乙基酯 | Butanoic acid, 3-oxo-, 2-[(2-methyl-1-oxo-2-propenyl)oxy]ethyl ester | C10H14O5 | 214.21 | | 100℃(0.7 |
| 212837-49-5 | 2,3-二氟-4-n-丙酸苯硼酸 | 2,3-difluoro-4-n-propoxybenzeneboronic acid | | | | |
| 212838-70-5 | r-邻氯苯甘氨酸甲酯盐酸盐 | (R)-methyl 2-amino-2-(2-chlorophenyl)acetate hydrochloride | | | | |
| 21284-05-9 | | 3,4-dimethyl-1,5-cyclooctadiene | C10H16 | 136.23 | | |
| 21284-11-7 | | 7-beta,8-beta:12,13-diepoxy-, crotonate, (z)-trichothec-9-en-4-beta-o | C19H24O5 | 332.39 | | |
| 212844-53-6 | | purvalanol a | | | | |
| 212844-54-7 | | purvalanol b | | | | |
| 21285-46-1 | 反-2,3-二溴-2-丁烯-1,4-二醇 | trans-2,3-dibromo-1,4-dihydroxy-2-butene | | | | |
| 21286-54-4 | 碳酰氯 | (1S)-(+)-10-Camphorsulfonyl chloride | C10H15ClO3S | 250.74 | 63-68℃ | |
| 21287-44-5 | | 4-imidazolidinedione, 1-((3-(5-nitro-2-furanyl)-2-propenylidene)amino)- pota | | | | |
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