| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 52117-13-2 | | n-(alpha,alpha-dimethylphenethyl)formamide | C11H15NO | 177.24 | | |
| 52117-69-8 | 醋酸丁胆碱 | pinobanksin 3-acetate | | | | |
| 52118-10-2 | | 2,2'-(ethylenedioxy)dibenzaldehyde | C16H14O4 | 270.28 | | 470℃ at 760 mmHg |
| 52118-86-2 | 3-(三氟甲基)-5-异丙基-1h-吡唑 | 3-(trifluoromethyl)-5-isopropyl-1h-pyrazole | C7H9F3N2 | 178.15 | | |
| 52119-01-4 | | ethyl 2,3-dicyano-3-methylbutyrate | | | | |
| 52119-38-7 | | ethyl 3-nitrobenzoylacetate | C11H11NO5 | 237.21 | 75-77℃ | 314.4°C |
| 52119-39-8 | | Ethyl 2-nitrobenzoylacetate | O2NC6H4COCH2CO2CH2CH3 | 237.21 | 30-34 ℃(lit.) | 170 ℃ at 0.1 mmHg |
| 5212-67-9 | | 6-methyl-6-heptenoic acid | | | | |
| 5212-71-5 | 7-甲基-7-辛烯酸 | 7-methyl-7-octenoic acid | | | | |
| 5212-99-7 | | 3'',4'',5-trichloro-2-hydroxy-3-biphenylcarboxanilid | | | | |
| 52120-49-7 | 2,4-二硝基苯丁酸 | 2,4-Dinitrobenzenebutyric acid | C10H10N2O6 | 254.2 | | |
| 52121-34-3 | | 2-bromo-1-ethyl-4-nitrobenzene | | | | |
| 52121-35-4 | | 3'-bromo-4'-ethylacetanilide | | | | |
| 52121-36-5 | 3-溴-4-乙基苯胺 | 3-bromo-4-ethylaniline | C8H10BrN | 200.08 | | 270 °C(Predicted) |
| 52121-37-6 | | 5'-bromo-4'-ethyl-2'-nitroacetanilide | | | | |
| 52121-41-2 | | 4'-bromo-3'-ethylacetanilide | | | | |
| 52121-42-3 | 4-溴-3-乙基苯胺 | 4-bromo-3-ethylaniline | C8H10BrN | 200.08 | | |
| 52121-87-6 | | (6-bromo-hex-3-enyl)-benzene | C12H15Br | 239.15 | | |
| 52123-15-6 | | benzothiazolium, 2-(2-ethoxy-1-propenyl)-3-(3-sulfobutyl)-, hydroxide, inner sa | | | | |
| 52123-30-5 | | lys-lys dihydrochloride | C12H26N4O3.2HCl | 347.28 | | |
| 52123-58-7 | | 8-azabicyclo(3.2.1)octane-3-carboxylic acid, 8-methyl-3-phenyl-, ethyl ester, h | | | | |
| 52125-43-6 | | 1-naphthalenesulfonic acid, 3-diazo-3,4-dihydro-4-oxo-, ar'-(1-methylethyl)[1,1 | | | | |
| 52125-53-8 | 1(或2)-乙氧基丙醇 | 1(or 2)-ethoxy-Propanol | C5H12O2 | | | |
| 52125-71-0 | 亚甲基(双)丁二酸与2-丙烯酸乙酯和N-(羟甲基)-2-丙烯酰胺的聚合物 | Methylene-butanedioic acid,polymer with ethyl 2-propenoate and N-(hydroxymethyl)-2-propenamide | | | | |
| 52126-12-2 | 1,3-二氯-5-(二氟甲基)苯 | 1,3-dichloro-5-(difluoromethyl)-benzene | | | | |
| 52126-51-9 | | 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1h-pyrazole-3-carboxylic aci monosodium | C10H7N2NaO6S | 306.22 | | |
| 52126-83-7 | | Tetraarsenic tetraselenide | As4Se4 | 615.53 | | |
| 521266-92-2 | | 4-(chloromethyl)-5-methyl-2-(3-methylphenyl)-1,3-oxazole | C12H12ClNO | 221.68 | | |
| 521267-18-5 | | tert-butyl 2,2-dioxooxathiazinane-3-carboxylate | C8H15NO5S | 237.28 | | |
| 52127-83-0 | 4-(2,6-二氯-4-嘧啶基)吗啉 | 4-(2,6-dichloro-4-pyrimidyl)morpholine | C8H9Cl2N3O | 234.08 | | |
| 521270-76-8 | | 2-isocyanobenzophenone | | | | |
| 521272-14-0 | | n-(4-fluoro-phenyl)-2-hydroxy-4-methyl-benzamide | | | | |
| 521272-85-5 | (2R,3R)-(-)-2,3-双(二苯基膦基)双环[2.2.1]庚-5-烯(1,5-环辛二烯)铑(i)四氟硼酸盐 | (2R,3R)-(-)-2,3-bis(diphenylphosphino)bicyclo[2.2.1]hept-5-ene(1,5-cyclooctadiene)rhodium(i) tetrafluoroborate | | | | |
| 521276-41-5 | 3-溴-1-甲基-1H-吲哚-2-羧酸乙酯 | Ethyl 3-bromo-1-methyl-1H-indole-2-carboxylate | C12H12BrNO2 | 282.13 | | |
| 52128-35-5 | | 2,4-diamino-5-methyl-6-[(3,4,5-trimethoxyanilino)methyl]quinazoline | C19H23N5O3 | 369.42 | | |
| 521281-98-1 | 4-(5-((2-氯-6-氟苄基)硫基)-4-苯基-4H-1,2,4-三唑-3-基)吡啶 | 4-(5-((2-Chloro-6-fluorobenzyl)thio)-4-phenyl-4H-1,2,4-triazol-3-yl)pyridine | C20H14ClFN4S | 396.87 | | |
| 521284-19-5 | (R)-2-羟基-n-[2-(4-硝基苯基)乙基]-2-苯乙酰胺 | (R)-2-hydroxy-n-(4-nitrophenethyl)-2-phenylacetamide | C16H16N2O4 | 300.31 | | 584.8°C at 760 mmHg |
| 521284-21-9 | (R)-alpha-[[(4-硝基苯乙基)氨基]甲基]苄醇盐酸盐 | (R)-alpha-[[(4-nitrophenethyl)amino]methyl]benzyl alcohol hydrochloride | C16H19ClN2O3 | 322.78 | | |
| 521284-22-0 | 米拉贝隆中间体第三步( (alphar)-alpha-[[[2-(4-氨基苯基)乙基]氨基]甲基]苯甲醇盐酸盐 ) | (R)-2-((4-aminophenethyl)amino)-1-phenylethanol hydrochloride | C16H21ClN2O | 292.8 | | |
| 521286-38-4 | | boc-dl-norvaline | C10H19NO4 | 217.26 | | |
| 521289-10-1 | | methyl 4-((aminocarbamoyl)methoxy)benzoate | | | | |
| 521289-77-0 | | 1-benzoylpiperidine-4-carbohydrazide | | | | |
| 52129-61-0 | | 1-(4-hydroxy-3,5-dinitrophenyl)-ethanon | | | | |
| 52129-62-1 | | 1-(3-chloro-4-hydroxy-5-nitrophenyl)-ethanone | | | | |
| 52129-70-1 | | 1-(4-chloro-3,5-dinitrophenyl)-ethanon | | | | |
| 52129-71-2 | | 3',5'-dinitro-4'-(di-n-propylamino)-acetophenon | | | | |
| 52129-98-3 | 4-丙酰基苯甲腈 | 4-Propanoylbenzonitrile | | | | |
| 52129-99-4 | | 4'-(methylthio)propiophenone | C10H12OS | 180.2662 | | |
| 521291-61-2 | | (5S)-5-(1h-indol-3-ylmethyl)-2,2,3-trimethyl-4-imidazolidinone monohydrochloride | | | | |
| 5213-35-4 | | 4-methyl-2-nitro-imidazol mixed with 5-methyl-2-nitroimidazole (1:1) | | | | |
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