| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 212143-39-0 | | dimethyl 2,2'-((2-((tert-butoxycarbonyl)amino)ethyl)azanediyl)diacetate | | | | |
| 21215-52-1 | | n-(alpha-methyl-m-trifluoromethylphenethyl)-propionamid | | | | |
| 21215-62-3 | | calcitonin m | C151H226N40O45S3 | 3417.87 | | |
| 2121513-66-2 | | 2-chloro-5-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol | | | | |
| 2121530-37-6 | 阿法替尼杂质14 | afatinib impurity 14 | | | | |
| 21216-76-2 | | 1-((2,2-diphenyl-1,3-dioxolan-4-yl)methyl)-piperidin hydrochloride | | | | |
| 21216-78-4 | | 1-(2,2-diphenyl-1,3-dioxolan-4-ylmethyl)-1-methyl-piperidiniu iodide | | | | |
| 2121653-47-0 | | tert-butyl (4-bromo-2-pyridinyl)carbamate hydrochloride | | | | |
| 21217-12-9 | | ammonium, (phosphinicobis(iminotrimethylene))bis(trimethyl-, dibromide, phenyl | | | | |
| 21217-25-4 | | tolyl ester | | | | |
| 21217-75-4 | | 2-methyl-2-propenoic aci 2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethyl ester | | | | |
| 21218-94-0 | | methyl 4-phenoxybenzoate | | | | |
| 212180-20-6 | | n-methoxy-n-methyl-2-(phenylsulfinyl)acetamide | | | | |
| 212184-25-3 | | ethyl 4-benzyloxycarbonylamino-3-hydroxy-1-methyl-1h-pyrrole-2-carboxylate | | | | |
| 212189-48-5 | | methyl 3-(4-nitrophenoxy)benzoate | | | | |
| 212189-50-9 | | methyl 2-(4-nitrophenoxy)benzoate | | | | |
| 212189-58-7 | | methyl 2-(4-aminophenoxy)benzoate | | | | |
| 212189-78-1 | | methyl 2-fluoro-6-nitrobenzoate | | | | |
| 21219-30-7 | | 5-triazine, hexahydro-1,3,5-trinitro-, compd. with tetrahydrothiophene 1,1-3 | | | | |
| 21219-36-3 | | Tin,tetrachloro(ethyl acetate-O')- | C4H8Cl4O2Sn | 348.61 | | |
| 21219-63-6 | | [1,1,1,3,3,3-Hexafluoro-2-propanolato(2-)-C2,O]bis(triphenylphosphine)nickel | C39H30F6NiOP2 | 749.29 | | |
| 212190-25-5 | | 4,4,4-trifluoro-butane-1-sulfonyl chloride | | | | |
| 212191-84-9 | (S)-2,2'-二甲氧基-3,3'-二苯基-1,1'-联萘 | (S)-2,2'-dimethoxy-3,3'-diphenyl-1,1'-binaphthalene | | | | |
| 212197-74-5 | 5-氰基呋喃-2-羧酸 | 5-cyanofuran-2-carboxylic acid | | | | |
| 2122-19-2 | | 4-methyl-2-imidazolidinethion | | | | |
| 2122-29-4 | | retamine | | | | |
| 2122-46-5 | | phenoxy pesticide,liquid,flammable,poisonous | | | | |
| 2122-48-7 | | ethynyl | C2H | 25.03 | | |
| 2122-61-4 | 4-氨基-3,5-二碘苯甲酸 | 4-amino-3,5-diiodo-benzoic aci | C7H5I2NO2 | 388.93 | 300℃ | |
| 2122-63-6 | | 4-amino-3-iodo-benzoic aci | | | | |
| 2122-68-1 | 2-(1h-吲哚-3-基)乙酸丙酯 | propyl 2-(1h-indol-3-yl)acetate | | | | |
| 2122-70-5 | | 1-naphthaleneacetic acid, ethyl ester | C14H14O2 | 214.26 | | |
| 2122-77-2 | | 2-(2,4,5-trichlorophenoxy)-ethano | | | | |
| 2122-86-3 | | 4-oxadiazole-2-ol, 5-(5-nitro-2-furyl)-3 | | | | |
| 21220-70-2 | | 2-(4-(3,4-xylyloxy)butyl)amino-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-71-3 | | 2-(4-(2,4-xylyloxy)butyl)amino-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-73-5 | | 2-(6-phenoxyhexyl)amino-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-74-6 | | 2-(4-(4-methylthio-m-tolyloxy)butyl)amino-ethanethio hydrogen sulfate (este | | | | |
| 21220-75-7 | | 2-(4-(p-propoxyphenoxy)butyl)amino-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-76-8 | | 2-(4-(4-ethyl-2-methoxyphenoxy)butyl)amino-ethanethio hydrogen sulfate (est | | | | |
| 21220-77-9 | | 2-(4-(p-cyclohexylphenoxy)butyl)amino-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-79-1 | | 2-(bis(4-(p-chlorophenoxy)butyl)amino)-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-80-4 | | 2-(bis(2-(2-phenoxyethoxy)ethyl)amino)-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-81-5 | | 2-(bis(5-(phenylthio)pentyl)amino)-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-83-7 | | 2-(bis(4-(p-methoxyphenoxy)butyl)amino)-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-85-9 | | 2-(4-pentenylamino)-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-86-0 | | 2-(4-methoxybutyl)amino-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-88-2 | | 2-(7-hydroxyheptyl)amino-ethanethio hydrogen sulfate (ester) | | | | |
| 21220-89-3 | | 2-(3-(tetrahydro-2h-pyran-2-yloxy)propyl)amino-ethanethio hydrogen sulfate | | | | |
| 21220-90-6 | | 2-(2,2-diethylbutyl)amino-ethanethio hydrogen sulfate (ester) | | | | |
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