| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 4251-21-2 | | p-phenylenedipropionic acid | C12H14O4 | 222.24 | 229-233℃ | |
| 4251-63-2 | (2-氯苯基)乙醛 | (2-chlorophenyl)acetaldehyde | C8H7ClO | 154.59 | | 235.8 °C at 760 mmHg |
| 4251-65-4 | 对氯苯乙醛 | (4-chlorophenyl)acetaldehyde | C8H7ClO | 154.59 | | 235.8°C at 760 mmHg |
| 4251-89-2 | | 7-(3-(2-chloroethylethyl)aminopropylamino)-benz(c)acridin dihydrochloride | | | | |
| 42510-57-6 | | 3h-oxazolo(3,4-a)pyridine, hexahydro-3-methylimino-1-phenyl-, hydrochloride, (e | | | | |
| 42510-58-7 | | 3h-oxazolo(3,4-a)pyridine, hexahydro-3-methylimino-1-phenyl-, hydrochloride, (z | | | | |
| 42510-63-4 | | 3h-pyrido(1,2-c)oxazine, hexahydro-1-imino-4-phenyl-, hydrochloride, (e)-1 | | | | |
| 42510-71-4 | | oxazolidine, 3,4-dimethyl-2-imino-5-phenyl- (z)-(+-) | | | | |
| 42512-41-4 | | toluene-4-sulfonic acid 1-acetyl-piperidin-3-yl ester | | | | |
| 42513-36-0 | | 12-chloro-5-dodecyn | | | | |
| 42513-39-3 | | (z)-5-dodecen | | | | |
| 42514-09-0 | | 3-[(2-chloroethyl)sulfonyl]-n-[({3-[(2-chloroethyl)sulfonyl]propanoyl}amino)methyl]propanamide | | | | |
| 42514-10-3 | | dsh 29 | | | | |
| 42514-50-1 | 3-氨基-3-甲基-1-丁醇 | 3-amino-3-methyl-1-butanol | C5H13NO | 103.16 | | 179.2°C |
| 42517-23-7 | | 2-isopropyl-benzothiazol-6-ylamine | | | | |
| 42518-06-9 | | 4-amidinopyridinium chloride | C6H7N3·HCl | 157.60 | 263 °C | |
| 42518-27-4 | 5-Benzyliden-3-phenylthiazolidin-2,4-dion | | C16H11NO2S | 281.335 | 208 °C | 439.5±48.0 °C(Predicted) |
| 42518-98-9 | 5-氯噻吩-2-碳酰氯 | 5-chlorothiophene-2-carbonyl chloride | C5H2Cl2OS | 181.04 | | |
| 4252-07-7 | | pyrrolidinium, 1-(3-hydroxypropyl)-1-methyl-, iodide, ester with (cis-1,2,trans | | | | |
| 4252-08-8 | | 1-ethyl-1-(3-hydroxypropyl)-, iodide, ester with (cis-1,2,trans-pyrrolidiniu | | | | |
| 4252-09-9 | | 1-(3-hydroxypropyl)-1-methyl-, iodide, ester with (cis-1,2,trans-piperidiniu | | | | |
| 4252-25-9 | | m-(bis(2-chloroethyl)amino)-hydrocinnamic aci | | | | |
| 4252-28-2 | | 4-(3-(methoxycarbonyl)propyl)-carbanilic aci benzyl ester | | | | |
| 4252-32-8 | | n-formyl-2-phenylacetamide | | | | |
| 4252-36-2 | | 3-(p-(bis-(2-fluoroethyl)amino)phenyl)-pyruvic aci | | | | |
| 4252-37-3 | | n-benzoyl-3-(p-((2-chloroethyl)(2-fluoroethyl)amino)phenyl)-alanin | | | | |
| 4252-38-4 | | 3-(p-((2-chloroethyl)(2-fluoroethyl)amino)phenyl)-pyruvic aci | | | | |
| 4252-40-8 | | 3-(p-(bis(2-fluoroethyl)amino)phenyl)-alanin | | | | |
| 4252-56-6 | | 1-benzoyl-2-piperidinone | C5H9NOC7H4O | 203.241 | | |
| 4252-78-2 | 2,2',4'-三氯苯乙酮 | ω,2,4-Trichloroacetophenone | C8H5Cl3O | 223.48 | 47-54 °C(lit.) | 130-135 °C/4 mm Hg(lit.) |
| 4252-82-8 | | (2S,4R)-4-hydroxy-1-methyl-2-pyrrolidinecarboxylic acid | C6H11NO3 | 145.1564 | | |
| 4252-85-1 | | 1,4:3,6-dianhydro-, di-9-octadecenoate, (z,z)-d-glucito | | | | |
| 4252-88-4 | | diphenylpropyl-phosphine oxid | | | | |
| 42520-76-3 | | 5-chloro- alpha-(hydroxyimino)-2-thiopheneacetonitril | | | | |
| 42520-97-8 | | 2,2'-dichloro-n-butyl-diethylamin | C8H17Cl2N | 198.13 | | |
| 42521-08-4 | | 2,6-dichloropyridine-4-carbonyl chloride | C6H2Cl3NO | 210.45 | 23-25°C | 280.3°C |
| 42521-09-5 | | methyl 2,6-dichloroisonicotinate | C7H5Cl2NO2 | 206.03 | 82°C | 298.3°C |
| 42521-10-8 | 2-氯-6-甲氧基吡啶-4-羧酸甲酯 | methyl 2-chloro-6-methoxypyridine-4-carboxylate | C8H8ClNO3 | 201.6100 | | |
| 42521-44-8 | | (e)-12-tetradecen-9-yn-1-o | | | | |
| 42521-46-0 | 9Z,12E-Tetradecadien-1-ol | | C14H26O | 210.36 | | |
| 42521-82-4 | 1,1′-disulfanediyldinaphthalen-2-ol | ipa-3 | C20H14O2S2 | 350.45 | | |
| 42522-59-8 | | methyl-d3-malonic acid | C4H3D3O4 | 121.11 | 134-136℃ | |
| 42522-72-5 | | spiro(3h-2,1-benzoxathiole-3,9'-(9h)xanthene)-3',6'-diol, 2',4',5',7'-tetrabrom | | | | |
| 42523-29-5 | 2,7-二羟基-9-芴酮 | 2,7-Dihydroxy-9-fluorenone | C13H8O3 | 212.203 | | 444.5ºC at 760 mmHg |
| 42523-38-6 | | 7-nitro-9-oxo-9h-fluorene-4-carboxylic aci | | | | |
| 42525-59-7 | | Pentane,1,1,1,2,2,5-hexachloro- | C5H6Cl6 | 278.82 | | |
| 42525-64-4 | | N-[β-(trimethylsilyl)ethyl]trimethylenimine | C8H19NSi | 157.33 | | |
| 42525-65-5 | | 2-Phenylethyl-azetidine | C11H15N | 161.24 | | |
| 42526-30-7 | 5-氧-2,5-二氢-1,2,4-噁二唑-3-甲酸乙酯 | Ethyl5-oxo-2,5-dihydro-1,2,4-oxadiazole-3-carboxylate | C5H6N2O4 | 158.11 | | |
| 42528-17-6 | | piperidinium, 1-(3-benzyl-2-butenyl)-1-(carboxymethyl)-, chloride, heptyl ester | | | | |
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