| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 20515-19-9 | | methyl trans-3-pentenoate | | | | 55℃(20 t |
| 20515-69-9 | | Benzaldehyde,((4-fluorophenyl)methylene)hydrazone | C14H10F2N2 | 244.24 | | |
| 205171-12-6 | 2′-meccpa | | | | | |
| 205171-27-3 | | isothiazolo(5,4-b)pyridin-3(2h)-one, 4,6-dimethyl-2-((4-phenyl-1-piperazinyl)me | | | | |
| 205176-71-2 | | (2e)-1-(2-chlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one | | | | |
| 205178-80-9 | 2-溴-1-(4-氯-3-甲基苯基)乙酮 | 2-bromo-1-(4-chloro-3-methylphenyl)ethan-1-one | | | | |
| 20518-17-6 | 1-(对甲苯基)-1h-吡唑 | 1-p-tolyl-1h-pyrazole | | | | |
| 20518-22-3 | | 3-(m-chlorophenyl)-5-methyl-rhodanin | | | | |
| 20518-70-1 | | 1,1,1,3-tetrachloro-2-methyl-butane | C5H8Cl4 | 209.93 | | |
| 205180-16-1 | | (S)-cyclopentyl 2-amino-2-phenylacetate hcl | | | | |
| 205180-53-6 | | 1,4-bis(bromodiphenylmethyl)-benzen | C32H24Br2 | 568.35 | | |
| 205181-83-5 | (6-甲氧基苯并[d]噻唑-2-基)甲醇 | (6-methoxybenzo[d]thiazol-2-yl)methanol | | | | |
| 205182-52-1 | | fmoc-4-methoxy-l-homophenylalanine | | | | |
| 20519-27-1 | | Tricarbonyl(triphenyIphosphine)(triphenylstannyl)cobalt | C39H30CoO3PSn | 755.25 | | |
| 205194-11-2 | (R)-3-羟甲基-1-甲基哌啶 | (R)-(1-methylpiperidin-3-yl)methanol | | | | |
| 205194-33-8 | 4-(3-羟丙基)硫代吗啉1,1-二氧化物 | 4-(3-hydroxypropyl)thiomorpholine 1,1-dioxide | | | | |
| 205194-35-0 | (S)-1-甲基-3-哌啶甲醇 | (3S)-1-methyl-3-piperidinemethanol | | | | |
| 205195-05-7 | | 6,7-dimethoxy-n-(3-(trifluoromethyl)phenyl)quinazolin-4-amine | | | | |
| 2052-01-9 | 2-溴-2-甲基丙酸 | 2-bromo-2-methyl-Propanoic acid | C4H7BrO2 | 167.00 | 42-46℃ | 198-200℃ |
| 2052-06-4 | 4-溴-N,N-二乙基苯胺 | 4-bromo-n,n-diethyl-benzenamin | C10H14BrN | 228.13 | | |
| 2052-07-5 | 2-溴联苯基 | 2-bromo-1'-biphenyl | C12H9Br | 233.10 | | |
| 2052-13-3 | | butyl ortho-tolyl ether | | | | |
| 2052-14-4 | 丁基-2-羟基苯甲酸酯 | Benzoic acid, 2-hydroxy-, butyl ester | C11H14O3 | 194.23 | | |
| 2052-15-5 | 4-氧代戊酸丁酯 | Pentanoic acid, 4-oxo-, butyl ester | C9H16O3 | 172.22 | | 106-108℃ |
| 2052-25-7 | 媒介黑9 | Benzenesulfonic acid, 3-[(1,5-dihydroxy-2-naphthalenyl)azo]-4-hydroxy-, monosodium salt | C16H12N2O6S·Na | | | |
| 2052-34-8 | | 2-(2-methylbutyl)-tetrahydrothiophene | C9H18S | 158.30 | | |
| 2052-46-2 | | n,n-dimethyl-p-phenylenediamin monohydrochloride | C8H12N2.HCl | 172.65 | 215℃ | |
| 2052-49-5 | N,N,N-三丁基-1-丁铵氢氧化物 | 1-Butanaminium N,N,N-tributyl-, hydroxide | C16H37NO | 259.47 | | |
| 2052-63-3 | | 13-cis-retinol | C20H30O | 286.45 | | |
| 2052-92-8 | | 3-methyl-4-phenylpyridine | C12H11N | 169.22 | | |
| 20520-31-4 | | 4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-benzamido-3,3-dimethyl-7 | | | | |
| 20520-32-5 | | 4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-(2-furamido)-3,3-dimethy | | | | |
| 20520-33-6 | | 4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-6-((2,2-dimet | | | | |
| 20520-34-7 | | 4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-(3,4, | | | | |
| 20520-37-0 | | 4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-(5-bromo-2-furamido)-3,3 | | | | |
| 20520-64-3 | | (1R)-trans-1,2-dimethyl-cyclopropane | C5H10 | 70.13 | | |
| 20520-98-3 | | cis-2-benzylaminomethyl-1-cyclopentanol hydrochloride | C13H20ClNO | 241.76 | 164-166℃ | |
| 20521-44-2 | | 1,11-dodecadiyne | C12H18 | 162.27 | | 99℃(15 t |
| 20522-30-9 | | 1H-Pyrido[4,3,b]indole,2,3,4,5-tetrahydro monohydrochloride | | | | |
| 20522-67-2 | | magnesium ammonium chloride | H4Cl3MgN | 148.70 | | |
| 205235-01-4 | 2,5-二溴-3-十八烷基噻吩 | 2,5-dibromo-3-octadecylthiophene | | | | |
| 2052356-33-7 | | 2-(chloromethyl)-5-fluoropyrimidine hydrochloride | | | | |
| 205237-08-7 | | ethyl 3-(pentylamino)propanoate | | | | |
| 20524-59-8 | | 1,2,3,4,5,7,7-heptachloro-bicyclo[2.2.1]hepta-5-diene | | | | |
| 20524-84-9 | | Methane,trichloromethoxy- | C2H3Cl3O | 149.40 | | |
| 205240-63-7 | 2-氯-6-三氟甲基吡啶-3-硼酸 | 2-chloro-6-(trifluoromethyl)pyridine-3-boronic acid | | | | |
| 205242-58-6 | (R)-1-(苄基氨基)-3-(苄氧基)丙-2-醇 | (R)-1-(benzylamino)-3-(benzyloxy)propan-2-ol | | | | |
| 205242-64-4 | (S)-1-(苄基氨基)-3-(苄氧基)丙-2-醇 | (S)-1-(benzylamino)-3-(benzyloxy)propan-2-ol | | | | |
| 205242-66-6 | (S)-4-苄基-2-((苄氧基)甲基)吗啉 | (S)-4-benzyl-2-((benzyloxy)methyl)morpholine | | | | |
| 205245-17-6 | 2-氟-3-甲基-5-碘吡啶 | 2-fluoro-5-iodo-3-methylpyridine | | | | |
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