| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 21906-32-1 | | 3-bromophenylacetone | C9H9BrO | 213.07 | | |
| 21906-39-8 | 间-三氟甲基苯丙酮 | 3-(trifluoromethyl)phenylacetone | C10H9F3O | 202.18 | | 89-90℃(0 |
| 21906-90-1 | | 4-diazo-n,n-diethylaniline | | | | |
| 21906-97-8 | | calcium phthalate | | | | |
| 21907-47-1 | | zinc trifluoroacetate hydrate | C2HF3O2 | 114.02 | | |
| 21907-50-6 | | cesium trifluoroacetate | | | | |
| 21907-94-8 | | thio-acetic aci s-((3-hydroxy-4-(hydroxymethyl)-2-methyl-5-pyridyl)methyl) | | | | |
| 21908-08-7 | 2-甲酰基吡啶-4-羧酸乙酯 | ethyl 2-formylisonicotinate | | | | |
| 21908-10-1 | 6-甲醛-吡啶-2-甲酸乙酯 | ethyl 6-formylpicolinate | | | | |
| 21908-15-6 | | 4'-(bis(2-chloroethyl)amino)-picolinanilid | | | | |
| 21908-16-7 | | 4'-(bis(2-chloroethyl)amino)-nicotinanilid | | | | |
| 21908-17-8 | | 4'-(bis(2-chloroethyl)amino)-isonicotinanilid | | | | |
| 21908-53-2 | 氧化汞 | Mercuric oxide, red | HgO | 216.59 | | |
| 21908-89-4 | | (2-chloro-9h-thioxanthen-9-yl)acetic acid | | | | |
| 21909-49-9 | | ethyl 2-methyl-3-indoleacetate | | | | 195℃(3.5 |
| 21909-52-4 | | 5-methylindole-3-acetic acid hydrazide | C11H13N3O | 203.24 | | |
| 2191-10-8 | | octanoic acid, cadmium salt (2:1) | | | | |
| 2191-38-0 | | Selenium bis(diethyldiselenophosphinate) | C8H20P2Se5 | 572.99 | | |
| 2191-67-5 | | cyclooctylurea | | | | |
| 21911-61-5 | | n-(2-methylphenyl)glycine | | | | |
| 21911-66-0 | | ethyl 3-toluidinoacetate | | | | |
| 21911-67-1 | | [(3-methylphenyl)amino]acetic acid | | | | |
| 21911-68-2 | | ethyl [(4-methylphenyl)amino]acetate | | | | |
| 21911-69-3 | | n-(4-methylphenyl)glycine | | | | |
| 21911-75-1 | n-苯基-n-甲基甘氨酸盐酸盐 | 2-(methyl(phenyl)amino)acetic acid hydrochloride | | | | |
| 21911-84-2 | n-苯基-beta-丙氨酸甲酯 | n-phenyl-beta-alanine methyl ester | | | | |
| 21911-93-3 | | 6-chloro-4-phenyl-2-(4-pyridinyl)quinoline | | | | |
| 21912-09-4 | | hexahydro-1-(3,4,5-trimethoxybenzoyl)-1h-azepin | | | | |
| 21912-23-2 | | 1,3-dibromo-5,7-dimethyladamantane | | | | |
| 21912-49-2 | 溴布特罗 盐酸盐 | brombuterol hydrochloride | | | | |
| 21912-88-9 | | 3,3-diphenyl-n-methyl-2-propen-1-amin hydrochloride | | | | |
| 219121-62-7 | | 2-phenyl-3-pyridinamine monohydrochloride | C11H11ClN2 | 206.67 | | |
| 21913-84-8 | 5-乙基吡啶-2-甲醛 | 5-ethylpyridine-2-carbaldehyde | | | | |
| 21913-87-1 | | 7-hydroxy-1h-phenalene-1-one | | | | |
| 21913-97-3 | | 3-(4-nitrophenoxycarbonyl)-proxyl | C15H19N2O5 | 307.32 | 77-80℃ | |
| 2191305-88-9 | 苯扎那嗪水合盐酸盐 | benzamidine hydrate hydrochloride | | | | |
| 219132-82-8 | | 4-(4-methyl-1,4-diazepan-1-yl)aniline | | | | |
| 219137-85-6 | | caspase-1 substrate vi, fluorogenic-cas 219137-85-6-calbiochem | | | | |
| 219138-02-0 | | z-ile-glu-thr-asp 7-amido-4-trifluoromethylcoumarin | | | | |
| 21914-07-8 | | 5,5-diphenyl-barbituric aci | | | | |
| 21914-54-5 | | 1-nitro-9-aminoacridine | | | | |
| 21914-76-1 | | 7-methyl-1-oxa-4-azaspiro(4.5)decan | | | | |
| 21914-83-0 | | 18-hydroxy-5,8,11,14-eicosatetraenoic acid | | | | |
| 219140-13-3 | (z)-3-((2,4-二氟苯基)亚氨基)丁酸乙酯 | (z)-ethyl 3-((2,4-difluorophenyl)imino)butanoate | | | | |
| 219143-92-7 | | (s,s)-n,n'-bis(3,5-di-tert-butylsalicylidene)- 1,2-cyclohexanediaminochromium(iii) chloride | C36H52ClCrN2O2 | 632.27 | 250-255℃ | |
| 2191433-23-3 | 5-环丙基-3-(2-(三氟甲氧基)苯基)异噁唑-4-羧酸 | 5-cyclopropyl-3-(2-(trifluoromethoxy)phenyl)isoxazole-4-carboxylic acid | | | | |
| 2191434-19-0 | 5-环丙基-3-(2,6-二氯苯基)异噁唑-4-甲酸 | 5-cyclopropyl-3-(2,6-dichlorophenyl)isoxazole-4-carboxylic acid | | | | |
| 21915-05-9 | | 1-methyl-2-(2-(1-naphthyl)vinyl)pyridinium iodide | | | | |
| 21915-33-3 | 9-乙基双环[3.3.1]壬-9-醇 | 9-ethylbicyclo[3.3.1]nonan-9-ol | | | | |
| 21915-40-2 | | 9-cyclohexylbicyclo(3.3.1)nonan-9-ol | | | | |
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