| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 283-27-2 | | 3-oxabicyclo[3.2.2]nonane | C8H14O | 126.20 | | |
| 283-38-5 | 1,4-二氮杂双环[3.2.2]壬烷 | 1,4-diazabicyclo[3.2.2]nonane | | | | |
| 283-55-6 | | 5-aza-2,8,9-trioxa-1-bismabicyclo(3.3.3)undecane | | | | |
| 283-56-7 | | 2,8,9-trioxa-5-aza-1-borabicyclo(3.3.3)undecane | C6H12BNO3 | 156.98 | 236-241℃ | |
| 283-60-3 | | 2,8,9-trioxa-5-aza-1-silabicyclo(3.3.3)undecane | C6H13NO3Si | 175.26 | | |
| 283-66-9 | 六甲氧胺 | | | | | |
| 2830-53-7 | | 1-(benzyloxy)-2-bromo-4-methylbenzene | | | | |
| 2830-86-6 | | phosphorothioic acid, o,o-dimethyl ester, s-ester with 2-mercapto-n,n'-dimethyl | | | | |
| 2830-87-7 | | phosphorodithioic acid, o,o-dimethyl ester, s-ester with n,n'-diethyl2-mercapto | | | | |
| 28300-74-5 | 酒石酸化锑钾半水合物 | Antimony-potassium-tartrate- | C4H4KO7Sb·1/2H2O | 333.94 | 100℃ | |
| 28301-34-0 | | polyquaternium-6 | | | | |
| 28301-43-1 | 2-丙烯酸-1,1-二甲基乙酯与丙酸乙烯基酯的聚合物 | 2-Propenoic acid, 1,1-dimethylethyl ester, polymer with ethenyl propanoate | (C7H12O2·C5H8O2)x | | | |
| 28301-90-8 | 己二酸与2-乙基-2-羟甲基-1,3-丙二醇的聚合物 | Hexanedioic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol | (C6H14O3·C6H10O4)x | | | |
| 28302-36-5 | | cuprate(3-), [18-carboxy-20-(carboxymethyl)-8-ethenyl-13-ethyl-12-formyl-2,3-di | | | | |
| 28302-50-3 | 甲铵六氟磷酸盐 | methylammonium hexafluorophosphate | | | | |
| 28303-08-4 | | racemic-Dipotassium bis[μ-tartrato(4-)]diantimonate(2-)trihydrate | C8H10K2O15Sb2 | 667.85 | | |
| 28303-16-4 | | 4-hydroxy-benzenesulfonic aci polymer with formaldehyde | | | | |
| 28303-42-6 | | dodecyl formate | C13H26O2 | 214.34 | | |
| 28304-66-7 | | cis-5-ethylidenebicyclo[2.2.1]-2-heptene | C9H12 | 120.19 | | |
| 28304-67-8 | | trans-5-ethylidenebicyclo[2.2.1]hept-2-ene | C9H12 | 120.19 | | |
| 28305-25-1 | (2S)-2-羟基丙酸钙(2:1) | 2-hydroxy-, calcium salt (2:1), (2S)-Propanoic acid | C3H6O3·1/2Ca | | | |
| 28305-26-2 | l-甘油酸 钠盐 | l-glyceric acid sodium salt | | | | |
| 28305-67-1 | | (lα,4α,4aα,7α,7aβ)-Octahydro-1,4:4a,7-dimethano-4aH-benzocycloheptene-5,8-dione | C13H16O2 | 204.26 | | |
| 28307-08-6 | | boc-l-threonine 4-nitrophenyl ester | | | | |
| 28308-00-1 | | Dichloro(N,N,N',N'-tetramethylethylenediamine)zinc | | | 176-178℃ | |
| 28308-70-5 | | 1,3-dimethyl-1,3-dioxo-distannoxan | | | | |
| 28309-44-6 | | 1-adamantanecarbohydroxamic acid | | | | |
| 28309-55-9 | | (+)-amino) propyl) | | | | |
| 28309-56-0 | | (+)-oxyethyl) methylamino)ethyl) | | | | |
| 28309-57-1 | | (-)-oxyethyl) methylamino)ethyl) | | | | |
| 28309-58-2 | | (+)-amino) butyl) | | | | |
| 28309-59-3 | | (-)-amino) butyl) | | | | |
| 2831-49-4 | | 2-benzenesulfonyl-2-((4-chloro-phenyl)-hydrazono)-acetic acid hydrazide | | | | |
| 2831-60-9 | | 2-(2,4-dinitrophenoxy)-ethano | | | | |
| 2831-66-5 | 2,4-二氯-1,3,5-三嗪 | 2,4-dichloro-1,3,5-triazine | | | | |
| 2831-75-6 | 去甲山豆根碱 b | daurinoline | | | | |
| 2831-90-5 | | tris(hydroxymethyl)ethanoic acid | C5H10O5 | 150.13 | | |
| 28310-50-1 | | 2-(2,2,6,6-tetramethyl-4-piperidinyl)ethanol | C11H23NO | 185.30 | | |
| 28310-65-8 | | boc-pro-onp | C16H20N2O6 | 336.34 | | |
| 28311-22-0 | 4-(2-氯苯基)吡咯烷-2-酮 | 4-(2-chlorophenyl)pyrrolidin-2-one | | | | |
| 28311-23-1 | 4-(4-溴苯基)-2-吡咯烷酮 | 4-(4-bromophenyl)pyrrolidin-2-one | | | | |
| 28311-38-8 | | tolibut | | | | |
| 28311-44-6 | 巴氯芬杂质6 | baclofen impurity 6 | | | | |
| 28311-45-7 | 4-氨基-3-(吡啶-3-基)丁酸 | 4-amino-3-(pyridin-3-yl)butanoic acid | | | | |
| 28312-61-0 | 1,5-萘啶-4,8-二醇 | 1,5-naphthyridine-4,8-diol | | | | |
| 28312-77-8 | | g)azonine, 5,7,12,13-tetrahydro-6-(2-chloroethyl)-6h-dibenz( | | | | |
| 28312-79-0 | | g)azonine-6-propanol, 5,7,12,13-tetrahydro-6h-dibenz( | | | | |
| 28312-81-4 | | g)azonine-6-ethanol, 5,7,12,13-tetrahydro-6h-dibenz( | | | | |
| 28312-84-7 | | 3-(methylamino)butanamide hydrochloride | | | | |
| 28313-42-0 | | di-butyl terephthalate | | | | |
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