| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 42265-81-6 | | 2,5-dichloro-n-ethylaniline | | | | |
| 42266-02-4 | | 3,5-dichloro-n-ethylaniline | | | | |
| 42266-03-5 | | 3,5-dichloro-n-methylaniline | | | | |
| 42266-04-6 | | n-(3,5-dichlorophenyl)-n-propylamine | | | | |
| 42266-17-1 | 3,5-二氯苯基异丙胺 | (3,5-dichloro-phenyl)-isopropyl-amine | | | | |
| 42267-27-6 | | 5-dioxo-4-oxazolidinyl)butyl]-2,2,2-trifluoro- n-[4-( (S)-acetamid | | | | |
| 42268-60-0 | | 2-(1-naphthylmethyl)benzimidazole | | | | |
| 42268-68-8 | | allyl-prop-2-ynyl-amine | | | | |
| 42268-88-2 | 5-(溴甲基)间苯二甲酸二甲酯 | 5-bromomethylisophthalic acid dimethyl ester | | | | |
| 4227-23-0 | | 8-ethyl-7-hydroxy-theophyllin | | | | |
| 4227-95-6 | | iodomethane-(13)c stab.,~99 (atom % 13c) | | | | 42.5℃ |
| 4227-99-0 | | a-naphthyl laurate | C22H30O2 | 326.47 | | |
| 42270-37-1 | | 1-thiazol-2-yl-piperazine | | | | |
| 42270-46-2 | | propionic acid 1-methyl-decyl ester | C14H28O2 | 228.37 | | |
| 42270-64-4 | | Ammonium iodate-d4 | D4INO3 | 196.97 | | |
| 42270-85-9 | | 1,4-butanediol bis(cyanoacetate) | | | | |
| 42271-27-2 | 2-(乙基磺酰基)乙酸甲酯 | methyl 2-(ethylsulfonyl)acetate | | | | |
| 42272-24-2 | | Phenol,pentachloro-,compd. with pyridine(1:1) | C11H6Cl5NO | 345.44 | | |
| 42272-70-8 | 4-十五烷亚基-3-十四烷基-2-氧杂环丁酮 | 4-pentadecylidene-3-tetradecyl-2-Oxetanone | C32H60O2 | | | |
| 42272-79-7 | | 3,4-dihydro-1(2h)-phenazinone oxime | | | | |
| 42273-05-2 | 齐墩果-12-烯[3,2-c]异恶唑-28-酸甲酯 | olean-12-eno[3,2-c]isoxazol-28-oic acid methyl ester | | | | |
| 42273-76-7 | | alpha-vinylbenzyl alcohol | | | | 101℃(12 |
| 42275-47-8 | | 2-chloro-n-methylpropanamide | | | | |
| 42275-92-3 | | 2-chloro-n-isopropylpropanamide | | | | |
| 42275-96-7 | | 3-chloro-n-(2-propyn-1-yl)propionamide | | | | |
| 42276-53-9 | | 2-bromo-n-(3-methylphenyl)butanamide | | | | |
| 42276-56-2 | | 2-bromo-n-mesitylbutanamide | | | | |
| 42276-72-2 | | 2,2-dichloro-2'-methoxy-5'-methylacetanilide | | | | |
| 42276-79-9 | | 2,2-dichloro-4'-nitro-o-acetotoluidide | | | | |
| 42278-67-1 | | potassium hydro(triisopropoxy)borate | | | | |
| 42278-88-6 | | Ferrate(3-),hexakis[cyano-C]-,tetrapotassium,tri(hydrate-d2),(OC-6-11)- | C6D6FeK4N6O3 | 428.42 | | |
| 42279-29-8 | | ether, pentachlorophenyl | | | | |
| 4228-00-6 | | dodecanoic acid, phenyl ester | C18H28O2 | 276.41 | | |
| 4228-10-8 | | 5-acetylindane,97% | C11H12O | 160.21 | | 85℃(0.05 |
| 4228-66-4 | | dhppa | | | | |
| 4228-88-0 | | 4,6-dichloro-2-(trifluoromethyl)-benzimidazol | | | | |
| 4228-89-1 | | 4,7-dichloro-2-(trifluoromethyl)-benzimidazol | | | | |
| 4228-91-5 | | 4-chloro-6-nitro-2-(trifluoromethyl)-benzimidazol | | | | |
| 4228-93-7 | | 4-bromo-5,6,7-trichloro-2-(trifluoromethyl)-benzimidazol | | | | |
| 4228-97-1 | | 4,7-dibromo-2-(trifluoromethyl)-benzimidazol | | | | |
| 4228-99-3 | | 5-methyl-4,6,7-trichloro-2-(trifluoromethyl)-benzimidazol | | | | |
| 42281-59-4 | | 17-(cyclopropylmethyl)-morphinan-14-diol | | | | |
| 42286-14-6 | | 4-(2-aminoethyl)benzenesulfonamide monohydrochloride | C8H12N2O2S.HCl | 236.71 | 213℃ | |
| 42286-41-9 | | n,n'-bis(4-methoxybenzylidene)-1,4-phenylenediamine | | | | |
| 42286-46-4 | | benzo(a)pyrene-4,5-dione | | | | |
| 42286-84-0 | | 5-methyl-coumari | | | | |
| 42287-37-6 | | 1-hydrazino-2-methyl-2-propanol | | | | |
| 42287-48-9 | | (+)-bis-((R)-1-phenylethyl)amine hydrochloride | C16H20ClN | 261.79 | | |
| 42287-85-4 | | ethyl 7h-perfluoroheptanoate | C6H6F6O2 | 224.1 | | |
| 42287-87-6 | | 3-(3,5-dimethylphenyl)propanoic acid | | | | |
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