| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 421-94-3 | | 1,1,1,2,3-pentachloro-2-fluoro-propane | C3H2Cl5F | 234.31 | | |
| 4210-03-1 | 2,6-二氯茴香硫醚 | 2,6-dichlorothioanisole | | | | |
| 4210-04-2 | | 3,5-bis(trifluoromethyl)phenylmethylsulfone | | | | |
| 4210-05-3 | | 2,6-dichlorophenylmethylsulfone | | | | |
| 4210-32-6 | 4-叔-丁基苯甲腈 | 4-tert-Butylcyanobenzene | C11H13N | 159.23 | | 258℃ |
| 4210-59-7 | | 2,6-diphenyl-4-tert-butylpyrylium perchlorate | | | | |
| 4210-60-0 | 叔丁基丙二腈 | tert-butylmalononitrile | C7H10N2 | 122.17 | | |
| 4210-66-6 | | o-phosphohomoserine | C4H10NO6P.xLi+ | 199.10(free) | | |
| 4210-71-3 | | (4-chlorophenoxy)-acetic aci 2-(dimethylamino)propyl ester | | | | |
| 4210-73-5 | | (p-chlorophenoxy)-acetic aci 2-(diethylamino)ethyl ester | | | | |
| 4210-74-6 | | acetic acid, (p-chlorophenoxy)-, 2-(diethylamino)ethyl ester, hydrochloride | | | | |
| 4210-90-6 | | n,n,n',n'-tetrakis[4-(dipropylamino)phenyl]-4-benzenediamne | | | | |
| 4210-91-7 | | phenanthridinium, 8-(acetylamino)-3-(3-(3-(aminoiminomethyl)phenyl)-1-triazenyl | | | | |
| 4210-92-8 | | 3-amino-8-(3-(3-(((aminoiminomethyl)hydrazono)methyl)phenyl)-phenanthridiniu | | | | |
| 4210-97-3 | | tiformin | | | | |
| 42101-38-2 | | 3,3-dichloro-2-methyl-but-1-ene | C5H8Cl2 | 139.02 | | |
| 42101-49-5 | | propan-2-oneO-ethyloxime | C5H11NO | 101.15 | | |
| 42101-55-3 | | 3,3'-hexamethylenebis(1,1-dibenzylurea) | | | | |
| 42103-98-0 | | isopropylidenesuccinicaciddiethylester | C11H18O4 | 214.26 | | 103°C|2.3mmHg |
| 42104-58-5 | 邻二甲苯二膦酸 | o-xylylenediphosphonic acid | C8H12O6P2 | 266.13 | 350°C | |
| 42104-70-1 | 1-(吡咯烷-1-基)丙-2-烯-1-酮 | 1-(Pyrrolidin-1-yl)prop-2-en-1-one | C7H11NO | 125.17 | | 106-108 °C at 10 mmHg |
| 42105-26-0 | 1-甲基-2-丙炔胺盐酸盐 | but-3-yn-2-amine hydrochloride | C4H8ClN | 105.57 | | |
| 42105-34-0 | | 3-trifluoromethylsulfanyl-pentane-2,4-dione | | | | |
| 42105-37-3 | | 3-oxo-2-(trifluoromethylthio)butyric acid ethylester | | | | |
| 42105-98-6 | | n-methylmalonamic acid | C4H7NO3 | 117.10 | | |
| 42106-48-9 | 2-(4-吗啉基)苯甲酸 | 2-morpholinobenzoic acid | C11H13NO3 | 207.23 | | |
| 42106-50-3 | | 5-nitro-2-(piperidine-1-yl)benzoic acid | | | | |
| 42106-58-1 | | n-(2-phenoxyethyl)-n-phenyl-acetamid | | | | |
| 42107-66-4 | | 6-phenoxy-1-phenyl-4-hexadiyn-1-one | | | | |
| 4211-06-7 | | 1,2-dihydro-4-(p-(2,3-epoxypropoxy)phenyl)-7-methoxy-3-phenyl-naphthalen | | | | |
| 4211-67-0 | 5-叔-丁基-2,4-二羟基苯并苯基酮 | 2,4-dihydroxy-5-tert-butylbenzophenone | C17H18O3 | 270.32 | 144-148℃ | 373.44°C (rough estimate) |
| 42110-58-7 | | metioxate | | | | |
| 42110-65-6 | 3,5,7-三羟基-2-(2-(4-羟基-3-甲氧基苯基)-3-(羟甲基)-2,3-二氢苯并[b] [1,4]二氧杂环己烯-6-基)苯并二氢吡喃-4-酮 | 3,5,7-Trihydroxy-2-(2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)chroman-4-one | C25H22O10 | 482.4362 | | |
| 42110-73-6 | 1-甲基-4-硝基-1H-吡唑-5-甲腈 | 1-Methyl-4-nitro-1H-pyrazole-5-carbonitrile | C5H4N4O2 | 152.1109 | | |
| 42111-91-1 | | 4-piperidino-phenethylamin carbonate | | | | |
| 42111-98-8 | | beta-methyl-3-piperidino-phenethylamin succinate | | | | |
| 42112-06-1 | | 2-(4-piperidinophenyl)-isobutylamin succinate | | | | |
| 42113-13-3 | 3-甲基-4-羟基苯甲酸甲酯 | methyl 4-hydroxy-3-methylbenzoate | C9H10O3 | 166.18 | | |
| 42113-92-8 | | 1-octanoyl-2-thio-ure | | | | |
| 42116-21-2 | 苏型-(2RS)-4-苯基-3-乙酰氨基-2-羟基-4-氧代丁酸 | o-benzyl s-(4,6-dimethyl-2-pyrimidinyl)carbonothionate | C12H13NO5 | 274.33 | 64-66℃ | |
| 42116-43-8 | | 1-boc-2-phenylhydrazine | C11H16N2O2 | 208.26 | 90-94°C | |
| 42116-44-9 | | tert-butyl benzylcarbamate | C12H17NO2 | 207.2689 | | |
| 42116-55-2 | | methyl 3-(boc-amino)propanoate | C9H17NO4 | 203.24 | | |
| 42116-56-3 | | boc-beta-alanine hydrazide | | | | |
| 42116-76-7 | | (2-(2-methyl-5-nitro-1h-imidazol-1-yl)ethyl)-carbamothioic aci o-methyl est | C8H12N4O3S | 244.27 | | |
| 4212-43-5 | | propaneperoxic acid | C3H6O3 | 90.08 | | |
| 4212-49-1 | | 5-ethvluracil | C6H8N2O2 | 140.14 | 300℃ | |
| 4212-74-2 | 2,4-二甲基二苯砜 | Benzene, 2,4-dimethyl-1-(phenylsulfonyl)- | C14H14O2S | 246.3248 | | |
| 4212-93-5 | | o-acetotoluidide, | | | | |
| 4212-94-6 | 酰化,酰化产物 | n-acetoxy-carbanilic aci isopropyl ester | | | | |
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