| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 51982-45-7 | | cholesta-5,7,9-trien-3 beta-ol | | | | |
| 51983-24-5 | | n-(2-bromo-ethyl)-4-fluoro-benzenesulfonamide | | | | |
| 51984-46-4 | 3-甲氧基-2-羟甲基吡啶 | (3-methoxypyridin-2-yl)methanol | C7H9NO2 | 139.15 | | 246.088°C at 760 mmHg |
| 51984-61-3 | 2-甲基-3-氨基-5-硝基吡啶 | 2-methyl-5-nitropyridin-3-amine | C6H7N3O2 | 153.14 | | 364.9±37.0°C at 760 mmHg |
| 51984-62-4 | 3-氯-2-甲基-5-硝基吡啶 | 3-chloro-2-methyl-5-nitropyridine | C6H5ClN2O2 | 172.57 | | |
| 51984-63-5 | 5-氯-6-甲基吡啶-3-醇 | 5-chloro-6-methylpyridin-3-ol | C6H6ClNO | 143.57 | | |
| 51984-71-5 | 2-甲基-5-硝基烟酸乙酯 | ethyl 2-methyl-5-nitronicotinate | C9H10N2O4 | 210.19 | | 309.6°C |
| 51985-06-9 | 3-异丙烯基苯酚 | 3-(1-Methylethenyl)phenol | C9H10O | 134.18 | | |
| 51985-24-1 | | n-(3-fluorophenyl)picrylamine | | | | |
| 51985-26-3 | | n-(3,5-dichlorophenyl)picrylamine | | | | |
| 51985-95-6 | | methyl 5-hydroxy-1-methyl-1h-pyrazole-3-carboxylate | C6H8N2O3 | 156.14 | 195-200°C | 330.7°C |
| 51986-01-7 | 5-羟基-1-异丙基-1H-吡唑-3-羧酸乙酯 | Ethyl 5-hydroxy-1-isopropyl-1H-pyrazole-3-carboxylate | C9H14N2O3 | 198.22 | | 340.1±22.0 °C(Predicted) |
| 51986-17-5 | 1-甲基-5-羟基吡唑-3-甲酸乙酯 | ethyl 5-hydroxy-1-methylpyrazole-3-carboxylate | C7H10N2O3 | 170.17 | | |
| 51987-10-1 | [1,1'-Biphenyl]-3,3',5,5'-tetramine | | C12H14N4 | 214.27 | | |
| 51987-20-3 | | 1-ethenylhexahydro-2h-azepin-2-on polymer with 1-ethenyl-2-pyrrolidinone | | | | |
| 51987-57-6 | | 8-isothiocyanatopyrene-1,3,6-trisulfon-ic acid triso. salt | C17H6NNa3O9S4 | 565.44 | | |
| 51987-65-6 | | desglugastrin | | | | |
| 51987-73-6 | | Boc-Phe-OMe | C15H21NO4 | 279.33 | 38-41℃ | |
| 51987-99-6 | n-(1,3,4-噻二唑-2-基)吡啶-3-甲酰胺 | tgn-020 | C8H6N4Os | 206.22 | | |
| 51988-14-8 | S-(4,5-二氢-5-硫代-1,3,4-噻二唑-2-基)苯硫代羧酸酯 | Benzenecarbothioic acid, S-(4,5-dihydro-5-thioxo-1,3,4-thiadiazol-2-yl)ester | C9H6N2OS3 | | | |
| 51988-24-0 | | | | | | |
| 51988-26-2 | | 4-[[4-[(2-hydroxy-1-naphthalenyl)azo]phenyl]azo]-benzenesulfonic aci monoli | | | | |
| 51988-36-4 | 3-(丙酰氧基)苯甲酸 | 3-propionyloxybenzoic acid | C10H10O4 | 194.18 | | 347.9°C at 760 mmHg |
| 51989-44-7 | | phosphorothioic acid, s-((4-(aminomethyl)-5-hydroxy-6-methyl-3-pyridinyl)methyl | | | | |
| 51989-45-8 | | phosphorothioic acid, s-((5-hydroxy-4-(hydroxymethyl)-6-methyl-3-pyridinyl)meth | | | | |
| 51989-47-0 | | 4'-hydroxybupivacaine | | | | |
| 5199-12-2 | | 3-methyl-5-piperidinomethylene-rhodanin | | | | |
| 5199-50-8 | 2-碘乙酸甲酯 | Methyl 2-iodoacetate | C3H5IO2 | 199.98 | | |
| 51990-04-6 | | eradicane | | | | |
| 51990-55-7 | 甲醛与磺酰基二[苯酚]的聚合物 | Formaldehyde, polymer with sulfonylbis[phenol] | | | | |
| 51990-94-4 | 4-氨基-3-叔丁基苯甲酸 | 4-Amino-3-(tert-butyl)benzoic acid | C11H15NO2 | 193.24 | | |
| 51991-28-7 | 1-溴-4-新戊基苯 | 1-Bromo-4-neopentylbenzene | C11H15Br | 227.14 | | |
| 51991-30-1 | 3,6-二氯-2-氟吡啶 | 3,6-Dichloro-2-fluoropyridine | C5H2Cl2FN | 165.98 | | |
| 51991-31-2 | 2,4-二氯-6-氟吡啶 | 2,4-Dichloro-6-fluoropyridine | C5H2Cl2FN | 165.98 | | |
| 51991-94-7 | 5-氧代-5h-噻唑并[3,2-a]嘧啶-6-甲酸 | 5-oxo-5h-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylic acid | | | | |
| 51992-11-1 | | 4-oxo-4-[(3,3,5-trimethylcyclohexyl)amino]but-2-enoic acid | C13H21NO3 | | | |
| 51994-35-5 | | 5-(4-biphenyl)-5-oxovaleric acid | | | | |
| 51994-93-5 | 2-甲基-2-丙酸丁酯与2-丙烯酸丁酯、2-甲基-2-丙烯酸-2-羟基乙酯和2-甲基-2-丙烯酸甲酯的聚合物 | 2-Propenoic acid, 2-methyl-, butyl ester, polymer with butyl 2-propenoate, 2-hydroxyethyl 2-methyl-2-propenoate and methyl 2-methyl-2-propenoate | (C8H14O2·C7H12O2·C6H10O3·C5H8O2)x | | | |
| 51995-05-2 | | bis(2-butoxyethyl) (2e)-2-butenedioate | | | | |
| 51996-87-3 | | Magnesium,dichlorobis[1,3,5,7-tetraazatricyclo[3.3.1.13,7]decane-N1]-decahydrate,(T-4)- | | | | |
| 51997-29-6 | | Vanadate(1-),hexafluoro-,potassium,(OC-6-11)- | F6KV | 204.03 | | |
| 51997-43-4 | | carazolol hydrochloride salt | | | | |
| 51997-51-4 | 4-(2,3-环氧丙氧基)咔唑 | 4-(2,3-Epoxyropoxy)carbazole | C15H16NO2 | 239.27 | 130-132°C | |
| 51998-05-1 | 2-(异氰酸甲酯基)四氢呋喃 | 2-(isocyanatomethyl)tetrahydrofuran | | | | |
| 51999-23-6 | | te and n-(hydroxymethyl)-2-propenamide | | | | |
| 52-01-7 | 螺内酯 | 17-hydroxy-7-alpha-mercapto-3-oxo-17-alpha-pregn-4-ene-21-carboxylic aci ga | C24H32O4S | 416.57 | 198-207℃ | |
| 52-21-1 | 醋酸泼尼松龙 | 4-diene-3,20-dione, 11-beta,17,21-trihydroxy-pregna- 21-acetate | C23H30O6 | 402.48 | | |
| 52-24-4 | 塞替派 | tris(1-aziridinyl)-phosphine sulfid | C6H12N3PS | 189.22 | 54-57℃ | |
| 52-26-6 | 硫酸吗啡 | 6-alpha-diol, 7,8-didehydro-4,5-alpha-epoxy-17-methyl-morphinan- hydrochlo | C34H40N2O10S | | | |
| 52-28-8 | 磷酸可待因 | 7,8-didehydro-4,5-alpha-epoxy-3-methoxy-17-methyl-morphinan-6-alpha-o phosp | C18H24NO7P | | | |
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