| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 550-15-2 | | 2-[(3,6-dimethyl-2-phenyl-4(3h)-pyrimidinylidene)methyl]-1-ethyl-quinoliniu | | | | |
| 550-19-6 | | met-lys-bradykini | C61H94N18O13S | 1319.59 | | |
| 550-21-0 | | isotocin | C41H63N11O12S2 | 966.13 | | |
| 550-23-2 | | 2,4,5-tri-(2-furyl)-2-imidazoline | | | | |
| 550-24-3 | | 2,5-dihydroxy-3-undecyl-p-benzoquinon | C17H26O4 | 294.39 | | |
| 550-28-7 | | 6-amino-3-methyl-1-(2-methylallyl)-uraci | C9H13N3O2 | 195.22 | | |
| 550-33-4 | | 9-beta-d-ribofuranosyl-9h-purin | C10H12N4O4 | 252.22 | 178-180℃ | |
| 550-34-5 | | 1-naphthoic acid, 4-amino-, 2-(diethylamino)ethyl ester, hydrochloride | | | | |
| 550-37-8 | 丁苯酞杂质3 | butylphthalide impurity 3 | | | | |
| 550-43-6 | | angustifoline | | | | |
| 550-44-7 | N-甲基邻苯二甲酰亚胺 | n-methyl-phthalimid | C9H7NO2 | 161.16 | 129-134℃ | |
| 550-49-2 | | furo(3,4-e)-1,3-benzodioxol-8(6h)-one, 6-(5,6,7,8-tetrahydro-6-methyl-1,3- diox | | | | |
| 550-52-7 | 二氢卟吩e4 | chlorin e4 | | | | |
| 550-53-8 | | 2,5-dimethoxy-alpha-(1-((1-methylethyl)amino)ethyl)-benzenemethano | | | | |
| 550-60-7 | 1-硝基-2-萘酚 | 1-nitro-2-naphtho | C10H7NO3 | 189.17 | | |
| 550-70-9 | | 2-(3-(1-pyrrolidinyl)-1-p-tolylpropenyl)-, monohydrochloride, (e)-pyridin | C19H23ClN2 | 314.85 | | |
| 550-73-2 | | 3-methyl-6,7-methylenedioxy-1-piperonyl-isoquinolin | | | | |
| 550-74-3 | | 3-methyl-4-nitro-1-(p-nitrophenyl)-2-pyrazolin-5-on | C10H8N4O5 | 264.19 | 119℃ | |
| 550-79-8 | | afromosin | | | | |
| 550-81-2 | | amopyroquine | | | | |
| 550-82-3 | 7-羟基-10-氧化物-3H-吩恶嗪-3-酮 | 3H-Phenoxazin-3-one, 7-hydroxy-, 10-oxide | C12H7NO4 | | | |
| 550-83-4 | | benzoic acid, 4-amino-2-propoxy-, 2-(diethylamino)ethyl ester, monohydrochlorid | | | | |
| 550-89-0 | | 1-phenazinecarboxamide | | | | |
| 550-90-3 | | lupanine | | | | |
| 550-96-9 | | 2-(2-allyl-6-methoxyphenoxy)-triethylamin hydrochloride | | | | |
| 550-99-2 | 盐酸苯甲唑啉 | 2-(1-naphthylmethyl)-2-imidazolin monohydrochloride | C14H14N2·HCl | 246.74 | 254-260℃ | |
| 5500-11-8 | | 3-(p-chlorophenyl)-5-(piperidinomethyl)-isoxazol hydrochloride | | | | |
| 5500-15-2 | | 5-propyl-nonanoic acid | C12H24O2 | 200.32 | | |
| 5500-21-0 | 环丙基腈 | cyclopropanecarbonitrile | C4H5N | 67.09 | | 133-135℃ |
| 5500-76-5 | | 8-(p-fluorophenethyl)-1-oxa-8-diazaspiro(4.5)decan-2-one | | | | |
| 55000-14-1 | | {2-[(2-methyl-2-propen-1-yl)oxy]phenyl}amine hydrochloride | | | | |
| 55000-26-5 | | o-nitro-cinnamonitril | | | | |
| 55000-53-8 | | 1,4-Dimethyl-5-octylnaphthalene | C20H28 | 268.44 | | |
| 55000-54-9 | | 2,6-Dimethyl-3-octylnaphthalene | C20H28 | 268.44 | | |
| 55000-55-0 | | naphthalene,7-butyl-1-hexyl- | C20H28 | 268.44 | | |
| 55000-56-1 | | naphthalene,2-butyl-3-hexyl- | C20H28 | 268.44 | | |
| 55001-09-7 | 3-(2-甲氧基苯基)丙酸甲酯 | methyl 3-(2-methoxyphenyl)propionate | | | | |
| 55003-61-7 | | Cobalt,(η5-2,4-cyclopentadien-1-yl)((7,8,9,10,11-η)-7-formyl-1,2,3,4,5,6,8,9,10,11-decahydro-7,8-dicarbaundecaborato(2-))- | C8H16B9CoO | 284.44 | | |
| 55003-63-9 | | Cobalt,((7,8,9,10,11-η)-7-benzoyl-1,2,3,4,5,6,8,9,10,11-decahydro-7,8-dicarbaundecaborate(2-))(η5-2,4-cyclopentadien-1-yl)- | C14H20B9CoO | 360.54 | | |
| 55004-76-7 | | 4-hydroxy-6,8-dimethyl-2h-chromen-2-one | | | | |
| 55004-77-8 | | | | | | |
| 55005-28-2 | | 6-ethyl-4-hydroxycoumarin | | | | |
| 55005-32-8 | | [1-(4-biphenylyl)ethyl]amine hydrochloride | | | | |
| 55007-22-2 | | 4-(2-methoxy-5-methyl-phenyl)-4-oxo-butyric acid | | | | |
| 55007-28-8 | | 1,1'-ethylenebis(3-(2-chloroethyl)-1-nitroso-ure | | | | |
| 55007-44-8 | | 2-bromo-2,4,4-trimethyl-3-pentanone | | | | |
| 55008-18-9 | 2-羟基-3-氨基-5-甲氧基苯甲酸甲酯 | methyl 3-amino-2-hydroxy-5-methoxybenzoate | | | | |
| 55009-84-2 | | methyl 3-(4-chlorophenylthio)-2-methylpropionate | | | | |
| 55011-44-4 | | o-tolidine sulfone, mixture of isomers | | | 350℃ | |
| 55011-64-8 | | sulfamic acid, compd. with 2-aminoethanol (1:1) | | | | |
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