| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 27995-78-4 | (2z)-3-(环丙基氨基甲酰基)丙-2-烯酸 | (2z)-3-(cyclopropylcarbamoyl)prop-2-enoic acid | | | | |
| 27996-86-7 | 4-(1,2,4-三唑-1-基)苯甲醛 | 4-(1,2,4-triazol-1-yl)benzaldehyde | C9H7N3O | 173.17 | 147°C | 369°C |
| 27996-87-8 | 2-氟-5-硝基苯甲醛 | 2-Fluoro-5-nitrobenzaldehyde | C7H4FNO3 | 169.11 | 57-59℃ | |
| 2799695-54-6 | 2-(2-羟基-5-甲基亚苄基)-N-(3-甲氧基苯基)肼-1-硫代甲酰胺 | 2-(2-Hydroxy-5-methylbenzylidene)-N-(3-methoxyphenyl)hydrazine-1-carbothioamide | C16H17N3O2S | 315.39 | | |
| 27998-35-2 | | 2-Amino-3-hydroxy-7-methylfuro[2,3-c]pyridine-4-methanol monohydrobromide monohydrate | C9H13BrN2O4 | 293.12 | | |
| 27998-36-3 | | 1-Quinuclidinyl bis(2,2'-thienyl)-glycollate | C17H19NO3S2 | 349.47 | | |
| 27998-43-2 | | Benzene,(2,2-dichloro-1-ethylcyclopropyl)- | C11H12Cl2 | 215.12 | | |
| 27998-60-3 | | 2-chloroethyl phenyl sulphoxide | C8H9ClOS | 188.67 | | |
| 27998-62-5 | | 1-chloro-2-(ethylsulfinyl)-ethan | C4H9ClOS | 140.63 | | |
| 280-05-7 | | 8-azabicyclo[3.2.1]octane | | | | |
| 280-07-9 | 3-氧杂-8-氮杂-二环[3.2.1]辛烷 | 3-oxa-8-azabicyclo[3.2.1]octane | C6H11NO | 113.16 | | 176.6±15.0 °C(Predicted) |
| 280-13-7 | 8-氧杂-3-氮杂双环[3,2,1]辛烷 | 8-oxa-3-aza-bicyclo[3.2.1]octane | C6H11NO | 113.16 | | 176.6°C at 760 mmHg(lit.) |
| 280-21-7 | | 6,7,8-trioxabicyclo[3.2.1]octane | C5H8O3 | 116.12 | | |
| 280-33-1 | | bicyclo(2.2.2)octane | C8H14 | 110.20 | | |
| 280-38-6 | | 2-azabicyclo(2.2.2)octane | | | | |
| 280-45-5 | | 2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane | C4H7O3P | 134.07 | | |
| 280-57-9 | 1,4-二氮杂二环[2.2.2]辛烷 | triethylene-diamine,hexahydrate | C6H12N2 | 112.17 | 156-159 °C(lit.) | 174 °C |
| 280-64-8 | | 9-borabicyclo[3.3.1]nonane, | C8H15B | 122.02 | | 68℃ |
| 280-75-1 | 3-氧杂-7-氮杂双环[3.3.1]壬烷 | 3-oxa-7-azabicyclo[3.3.1]nonane | C7H13NO | 127.18 | | |
| 280-97-7 | 9-氮杂双环[3.3.1]壬烷半草酸盐 | 9-azabicyclo[3.3.1]nonane hemioxalate | | | | |
| 2800-34-2 | | 10-formyltetrahydropteroylglutamic acid | | | | |
| 2800-80-8 | 溴酚红 | 3',3''-Dibromophenolsulfonphthalein | C19H12Br2O5S | 512.16 | | |
| 2800-92-2 | | p,p-bis(1-aziridinyl)-n-(6-chloro-2-methyl-4-pyrimidinyl)-phosphinic amid | | | | |
| 2800-96-6 | | Tin(IV)tetraacetate | C8H12O8Sn | 354.87 | 232-233°C (Lit.) | |
| 28000-83-1 | | bis(dl-valinato)-cobal trihydrate | | | | |
| 28001-33-4 | | 1-cyclopropyl-1h-pyrrole-2,5-dione | C7H7NO2 | 137.138 | 54-56 °C | 248.3±9.0 °C(Predicted) |
| 28001-58-3 | | phenyltrimethylammonium methosulfate | C10H17NO4S | 247.30 | 123-125℃ | |
| 28002-16-6 | 4-溴-2,7-萘啶 | 4-Bromo-2,7-naphthyridine | C8H5BrN2 | 209.04 | | |
| 28002-18-8 | | alpha-sulfobenzylpenicillin disodium | C16H16N2O7S2·2Na | 458.42 | | |
| 28002-60-0 | | n(sup 1)-(5-chloro-2,6-dimethyl-4-pyrimidinyl)-sulfanilamid sodium salt | | | | |
| 28002-70-2 | | d-streptamine, o-2,6-diamino-2,6-dideoxy-beta-l-idopyranosyl-(1-3)-o-beta-d- ri | C23H48N6O17S | 712.72 | | |
| 2800226-76-8 | (R)-5-(1-(3,5-Dichloropyridin-4-yl)ethoxy)-3-iodo-1H-indazole | | C14H10Cl2IN3O | 434.063 | | |
| 2800226-96-2 | (R)-5-(1-(3,5-Dichloropyridin-4-yl)ethoxy)-6-methoxy-1H-indazole | | C15H13Cl2N3O2 | 338.193 | | |
| 2800226-97-3 | (R)-5-(1-(3,5-Dichloropyridin-4-yl)ethoxy)-3-iodo-6-methoxy-1H-indazole | | C15H12Cl2IN3O2 | 464.09 | | |
| 2800227-19-2 | 6-氟-3-碘-1-(四氢2H-吡喃-2-基)-1H-吲唑-5-醇 | 6-Fluoro-3-iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-ol | C12H12FIN2O2 | 362.142 | | 474.1±45.0 °C(predicted) |
| 2800227-20-5 | 5-((R)-1-(3,5-Dichloropyridin-4-yl)ethoxy)-6-fluoro-3-iodo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole | | C19H17Cl2FIN3O2 | 536.172 | | |
| 280027-18-1 | | 4-hydroxy-8-methoxyquinoline-3-carboxylic acid | C11H9NO4 | 219.19 | | |
| 28003-33-0 | | yl)me thyl) dimethyl-, dibromide, diacetate (ester) | | | | |
| 28003-34-1 | | yl)me thyl) dimethyl-, dibromide, dibenzoate (ester) | | | | |
| 28003-35-2 | | ammonium, (4,4'-biphenylylenebis(2-oxoethylene))bis(((2-hydroxycyclohexyl)methy | | | | |
| 28003-36-3 | | l)dim ethyl-, dibromide, dibenzoate | | | | |
| 28003-37-4 | | ammonium, (terephthaloyldimethylene)bis(((2-cyano-2-hydroxycyclohexyl)methyl)di | | | | |
| 28003-38-5 | | methy l-, dibromide, dibenzoate (ester) | | | | |
| 28003-39-6 | | (terephthaloyldimethylene)bis(((2-hydroxycyclohexyl)methyl)dimethyl-ammoniu | | | | |
| 28003-86-3 | | l-lysine, mono(1,2,3,6-tetrahydro-2,6-dioxo-4-pyrimidinecarboxylate) | | | | |
| 28004-56-0 | 2-氨基-5-(2-甲氧基苯基)-1,3,4-噻二唑 | 2-amino-5-(2-methoxyphenyl)-1,3,4-thiadiazole | C9H9N3OS | 207.25 | | |
| 28004-59-3 | | 4-thiadiazol-2-amine, 5-(3,4,5-trimethoxyphenyl)-3 | | | | |
| 28004-60-6 | | 4-thiadiazol-2-amine, 5-(1,3-benzodioxol-5-yl)-3 | | | | |
| 28004-62-8 | | 2-Amino-5-(4-chlorophenyl)-[1,3,4]-thiadiazole | C8H6ClN3S | 211.67 | 229-233 ℃(lit.) | 383.9 °C at 760mmHg |
| 28004-63-9 | 2-氨基-5-(2,4-二氯苯基)-1,3,4-噻二唑 | 5-(2,4-dichlorophenyl)-1,3,4-thiadiazol-2-amine | C8H5Cl2N3S | 246.12 | | 415.2°C at 760 mmHg |
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