| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 519020-42-9 | 哒嗪-4-基甲胺 | pyridazin-4-ylmethanamine | C5H7N3 | 109.13 | | |
| 519028-33-2 | | benzyl (2-(4-((4-fluorobenzyl)carbamoyl)-5-hydroxy-6-oxo-1,6-dihydropyrimidin-2-yl)propan-2-yl)carbamate | C23H23FN4O5 | 454.45 | | |
| 51903-38-9 | 2,4,6-三甲氧基苯甲醛肟 | 2,4,6-trimethoxybenzaldehyde oxime | | | | |
| 51903-64-1 | | 3-(trifluoromethyl)-4-methylphenyl isocyanate | | | | |
| 51903-65-2 | | n,n-diethyl-2,3-bis(hydroxyimino)butanamide | | | | |
| 519031-82-4 | 叔丁基(z)-3-(n'-羟基脒基)吗啉-4-甲酸叔丁酯 | tert-butyl(z)-3-(n'-hydroxycarbamimidoyl)morpholine-4-carboxylate | | | | |
| 519031-87-9 | (4-氰基四氢-2h-吡喃-4-基)氨基甲酸叔丁酯 | tert-butyl (4-cyanotetrahydro-2h-pyran-4-yl)carbamate | | | | |
| 519032-06-5 | 5,6-二羟基-2-对甲苯基基嘧啶-4-甲酸甲酯 | Methyl 5-hydroxy-2-(4-methylphenyl)-6-oxo-1,6-dihydro-4-pyrimidinecarboxylate | C13H12N2O4 | 260.25 | | 401.9±55.0 °C at 760 mmHg |
| 519032-07-6 | 2-苄基-5,6-二羟基-嘧啶-4-羧酸甲酯 | Methyl 2-benzyl-5,6-dihydroxypyrimidine-4-carboxylate | C13H12N2O4 | 260.2500 | | |
| 519032-08-7 | 2-(2-(苄氧基羰基氨基)丙-2-基)-5-羟基-6-氧代-1,6-二氢嘧啶-4-甲酸甲酯 | methyl 2-(2-(((benzyloxy)carbonyl)amino)propan-2-yl)-5-hydroxy-6-oxo-1,6-dihydropyrimidine-4-carboxylate | C17H19N3O6 | 361.35 | | 552.6°C |
| 51904-91-7 | 5-氯磺酰基-2-甲氧基苯甲酸 | 5-chlorosulphonyl-2-anisic acid | C8H7ClO5S | 250.66 | | |
| 519041-85-1 | | n-[3-(acetylamino)-2,4-dimethylbenzyl]-2-chloroacetamide | | | | |
| 519042-70-7 | | 4-(5-bromo-1 h -benzoimidazol-2-yl)-phenylamine | | | | |
| 519044-86-1 | | 3-[(4-chlorobenzyl)thio]-1,2,4-thiadiazol-5-amine | | | | |
| 519044-87-2 | | methyl (2e)-3-{3-[(methylsulfonyl)amino]phenyl}acrylate | | | | |
| 519045-03-5 | | 3-[4-(acetylamino)phenyl]-2-phenylpropanoic acid | | | | |
| 519045-14-8 | | 5-{[(2-chlorobenzyl)thio]methyl}-4-methyl-4h-1,2,4-triazole-3-thiol | | | | |
| 519046-32-3 | | 1-(1-adamantyl)-2-(propylamino)ethanone hydrochloride | | | | |
| 51905-34-1 | | lithium pentamethylcyclopentadienide | C10H15Li | 142.17 | 230℃ | |
| 51905-47-6 | N-(2-溴乙基)-N-甲基苯胺 | N-(2-bromoethyl)-n-methylaniline | C9H12BrN | 214.11 | | |
| 519054-07-0 | | (2e)-1-(1h-1,2,3-benzotriazol-1-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one | | | | |
| 519054-09-2 | | (2e)-1-(1h-1,2,3-benzotriazol-1-yl)-3-(thiophen-2-yl)prop-2-en-1-one | | | | |
| 519054-53-6 | 2-二羟基硼基-3-噻吩羧酸 | 3-carboxythiophene-2-boronic acid | C5H5BO4S | 171.97 | 146 °C | |
| 519054-54-7 | 4-甲基-7-(4,4,5,5-四甲基-1,3,2-二氧硼烷-2-基)-3,4-二氢-2H-1,4-苯并恶嗪 | 4-Methyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-benzo[b][1,4]oxazine | C15H22BNO3 | 275.15 | | |
| 519054-55-8 | 苯并呋喃-5-硼酸频哪醇酯 | benzofuran-5-boronic acid pinacol ester | C14H17BO3 | 244.10 | | |
| 519055-62-0 | | tasisulam | C11H6BrCl2NO3S2 | 415.11 | | |
| 519056-51-0 | | 4-(trifluoromethyl)-6-(4-methoxyphenyl)pyrimidin-2-amine | | | | |
| 519056-53-2 | | 3-amino-4-methanesulfonyl-5-methylsulfanyl-thiophene-2-carboxylic acidethylester | | | | |
| 519056-54-3 | | ethyl 1-tert-butyl-5-methyl-1h-pyrazole-3-carboxylate | | | | |
| 519056-60-1 | 4-吗啉苯羰基硫代乙酰胺 | 4-(morpholin-4'-y)lthiobenzamide | | | | |
| 519056-61-2 | | 4-(1-butyl)phenylmethanesulfonyl chloride | | | | |
| 519056-67-8 | 1-甲基-3-(三氟甲基)-1h-吡唑-4-磺酰氯 | 1-methyl-3-(trifluoromethyl)-1h-pyrazole-4-sulfonyl chloride | | | | |
| 519059-04-2 | 1-(二氟甲氧基)-4-乙炔基苯 | 1-(Difluoromethoxy)-4-ethynylbenzene | C9H6F2O | 168.14 | | |
| 519059-09-7 | 3-氰基-4-氟苯乙腈 | 5-(cyanomethyl)-2-fluorobenzonitrile | C9H5FN2 | 160.15 | | 302°C |
| 519059-11-1 | 3-氰基-4-氟苯乙酸 | 2-(3-cyano-4-fluorophenyl)acetic acid | C9H6FNO2 | 179.15 | | 342.3±27.0°C at 760 mmHg |
| 51906-02-6 | | ingol-3,7,8,12-tetraacetate | | | | |
| 51907-18-7 | 5,6-二氢-[2]嘧啶-7-酮 | 5h-cyclopenta[c]pyridin-7(6h)-one | C8H7NO | 133.15 | | 244°C at 760 mmHg |
| 51908-09-9 | | 2,4-dichloroaniline-ul-14c | C6H5Cl2N | 162.01 | | |
| 51908-10-2 | | 2,2',4,4',5,5'-hexachlorobiphenyl-*ul-14c | C12H4Cl6 | 360.88 | | |
| 51908-16-8 | | 2,2',3,4',5,5'-hexachlorobiphenyl | | | | |
| 51908-29-3 | 4-异硫氰基苯磺酰胺 | 4-isothiocyanatobenzenesulfonamide | C7H6N2O2S2 | 214.26 | 208-212°C (dec.) | 418.2°C at 760 mmHg |
| 51908-30-6 | | 4-isothiocyanato-n-1,3-thiazol-2-ylbenzenesulfonamide | | | | |
| 51908-46-4 | | n-dansylaziridine | C14H16N2O2S | 276.35 | | |
| 51908-64-6 | | 4-chloro-1-butyne | C4H5Cl | 88.54 | | 96 °C |
| 51909-61-6 | | d-streptamine, o-2-amino-2,3,4,6-tetradeoxy-6-(methylamino)-alpha-d-glycero-hex | | | | |
| 5191-09-3 | | tetradecyl-phosphonic acid diethyl ester | C18H39O3P | 334.47 | | 199-201ºC 3mm |
| 5191-26-4 | | (2-butyloxy-ethyl)-phosphonic acid dipropyl ester | C12H27O4P | 266.31 | | |
| 5191-27-5 | | (2-butyloxy-ethyl)-phosphonic acid diisopropyl ester | C12H27O4P | 266.31 | | |
| 5191-35-5 | | (2-ethoxyethyl)-phosphonic aci diethyl ester | C8H19O4P | 210.21 | | |
| 5191-53-7 | 1,3,4-Triphenyl-1H-pyrrole-2,5-dione | | C22H15NO2 | 325.367 | 178-179 °C | 504.7±50.0 °C(Predicted) |
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