| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 2051-85-6 | 4-(苯基偶氮)-1,3-苯二醇 | c.i. solvent orange 1 | C12H10N2O2 | 214.22 | 143-146℃ | |
| 2051-89-0 | | 4,4'-diamino-biphenyl-3-sulfonic aci | | | | |
| 2051-90-3 | 二氯二苯甲烷 | 1,1'-(dichloromethylene)bis-benzen | C13H10Cl2 | 237.12 | 305 °C(lit.) | |
| 2051-95-8 | 3-苯甲酰丙酸 | gamma-oxo-benzenebutanoic aci | C10H10O3 | 178.19 | 114-118℃ | |
| 2051-96-9 | | 2-hydroxy-propanoic aci phenylmethyl ester | C10H12O3 | 180.20 | | |
| 2051-97-0 | | 1-benzyl-1H-pyrrole | C11H11N | 157.21 | | 90°C 0.9mm Hg (Lit.) |
| 2051-98-1 | 5-溴苊 | 5-bromoacenaphthene | C12H9Br | 233.10 | 50-56℃ | 335℃ |
| 2051-99-2 | | p-bromoisobutylbenzene | C10H13Br | 213.11 | | |
| 20510-55-8 | | sodium chloride-35cl | | | 801℃ | |
| 20510-56-9 | | sodium chloride-37cl | ClNa | 58.44 | | |
| 205106-54-3 | 4-(2-溴乙氧基)-3-氯苯甲酸甲酯 | methyl 4-(2-bromoethoxy)-3-chlorobenzoate | | | | |
| 205107-13-7 | 大黄酚-8-(6'-O-丙二酰)葡萄糖苷 | Chrysophanol-8-o-beta-d-(6'-o-malonyl)glucoside | C24H22O12 | 502.42 | | |
| 205109-16-6 | 4-((4R)-2-(((9H-芴-9-基)甲氧基)羰基)-4-甲基-1,3-二噁烷-2-基)苯甲酸 | 4-((4R)-2-(((9H-fluoren-9-yl)methoxy)carbonyl)-4-methyl-1,3-dioxan-2-yl)benzoic acid | C27H24O6 | 444.48 | | |
| 20511-12-0 | 2-氨基-5-碘吡啶 | 5-iodo-2-pyridinamin | C5H5IN2 | 220.00 | 128-131℃ | |
| 20511-15-3 | 3-氨基-4-氯吡啶 | 3-amino-4-chloropyridine | C5H5ClN2 | 128.56 | 58-63 °C | 247.6±20.0 °C(Predicted) |
| 20511-20-0 | 对甲基肉桂酸乙酯 | ethyl-p-methyl cinnamate | 20511-20-0 | 190.24 | | |
| 205111-94-0 | | 3-bromo-8-chloroquinoline | C9H5BrClN | 242.50 | | |
| 205113-77-5 | | 5-methyl-1-phenyl-1H-pyrazole-4-carbonyl chloride | C11H9ClN2O | | | |
| 205114-14-3 | 3-溴喹啉-6-羧酸 | 3-bromoquinoline-6-carboxylic acid | C10H6BrNO2 | 252.07 | | |
| 205114-16-5 | | 3-bromo-6-fluoroquinoline | C9H5BrFN | 226.05 | | 279.7±20.0 °C(Predicted) |
| 205114-17-6 | | methyl 3-bromoquinoline-6-carboxylate | C11H8BrNO2 | 266.09 | | 351.0±22.0 °C(Predicted) |
| 205114-18-7 | | 3-bromoquinoline-6-carboxamide | C10H7BrN2O | 251.08 | | 449.0±25.0 °C(Predicted) |
| 205114-19-8 | | 3-bromoquinoline-6-carbonitrile | C10H5BrN2 | 233.06 | | 358.7±22.0 °C(Predicted) |
| 205114-20-1 | 3-溴-6-碘喹啉 | 3-bromo-6-iodoquinoline | C9H5BrIN | 333.95 | | |
| 205114-66-5 | | cimicifugic acid b | | | | |
| 205115-22-6 | | methyl 3-(benzyloxy)isoxazole-5-carboxylate | | | | |
| 205117-38-0 | | nonafluoro-t-butoxyethylamine hydrochloride | | | | |
| 205126-71-2 | | boc-l-4-carbamoylphenylalanine | C15H20N2O5 | 308.33 | | |
| 205127-44-2 | | 3-methyl-1-[4-(trifluoromethyl)phenyl]-1h-pyrazol-5-amine | | | | |
| 205128-48-9 | 3,4-Dibromo-2,5-dihydro-1-(4-methoxybenzyl)-1H-pyrrole-2,5-dione | | C12H9Br2NO3 | 375.016 | | |
| 20513-06-8 | | 2-amino-4-imino-1(4h)-naphthalenon | | | | |
| 20513-21-7 | | 5-cyclohexadien-1-one, 2-amino-4-imino- dihydrochloride | | | | |
| 20513-25-1 | | 5,5-dimethyl-2,4-dithio-hydantoi | | | | |
| 20513-43-3 | | 4,4'-methylenebis(2-chlorophenyl iso-cyanate) | | | 103-106℃ | |
| 20513-71-7 | | 7-hydroxy-4-methyl-2(1h)-quinolone | C10H9NO2 | 175.18 | 250℃ | |
| 20513-79-5 | | 2-heptyl-4,5-dihydro-1h-imidazole-1-ethanamin | | | | |
| 20513-98-8 | | d-glucorono-6,3-lactone acetonide | C9H12O6 | 216.19 | 119-121°C | |
| 205131-81-3 | | 1-allyl-3,5,7,9,11,13,15-heptacyclopentylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane | | | | |
| 20514-29-8 | 2-乙基-5-甲基苯并噁唑 | 2-ethyl-5-methylbenzoxazole | | | | |
| 20514-41-4 | | 2,5-dimethyl-2,4-hexadienedioic acid | C8H10O4 | 170.16 | | |
| 20514-48-1 | | 2,4-Dimethylhexanal | C8H16O | 128.21 | | |
| 20515-15-5 | (E)-4-甲基戊-2-烯酸甲酯 | (E)-Methyl 4-methylpent-2-enoate | C7H12O2 | 128.17 | | 142.7±9.0 °C(Predicted) |
| 20515-19-9 | | methyl trans-3-pentenoate | C6H10O2 | 114.14 | | 55℃(20 t |
| 20515-69-9 | | Benzaldehyde,((4-fluorophenyl)methylene)hydrazone | C14H10F2N2 | 244.24 | | |
| 2051588-60-2 | (6-(3-氟苯氧基)吡啶-3-基)硼酸 | (6-(3-Fluorophenoxy)pyridin-3-yl)boronic acid | C11H9BFNO3 | 233 | | |
| 205170-72-5 | 3',4'-二硝基-2,2':5',2''-三联噻吩 | 3',4'-Dinitro-2,2':5',2''-terthiophene | C12H6N2O4S3 | 338.3820 | | |
| 205171-05-7 | (2R,3R,4R,5R)-2-(6-氯-9H-嘌呤-9-基)-5-(羟甲基)-3-甲基四氢呋喃-3,4-二醇 | (2R,3R,4R,5R)-2-(6-Chloro-9H-purin-9-yl)-5-(hydroxymethyl)-3-methyltetrahydrofuran-3,4-diol | | | | |
| 205171-06-8 | N-环戊基-2'-C-甲基腺苷 | N6-Cyclopentyl-2'-C-methyl-adenosine | C16H23N5O4 | 349.38 | | |
| 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 | | | | |
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