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4-硝基苯-α-D-吡喃半乳糖苷 |
| CAS No.: |
7493-95-0 |
| 分子式： |
C12H15NO8 |
| 分子量： |
301.25 |
| 备注： |
中文名称4-硝基苯-α-D-吡喃半乳糖苷中文同义词4-硝基苯基-α-D-吡喃半乳糖苷;4-硝基苯-α-D-吡喃半乳糖苷;4-NITROPHENYLΑ-D-GALACTOPYRANOSIDE对硝基苯-Α-D-吡喃半乳糖苷;对硝基苯基-Α-D-吡喃半乳糖苷/4-硝基苯基-Α-D-吡喃半乳糖苷;-硝基苯基Α-D-吡喃半乳糖苷[Α-D-牛乳糖用培养基];4-硝基苯基-Α-D-吡喃半乳糖苷|4-NITROPHENYLΑ-D-GALACTO-PYRAN-OSIDE;4-NITROPHENYLALPHA-D-GALACTOPYRANOSIDE4-硝基苯-Α-D-吡喃半乳糖苷;对硝基苯基-Α-D-吡喃半乳糖苷/4-硝基苯基-Α-D-吡喃半乳糖苷/PNPG英文名称4-NITROPHENYL-ALPHA-D-GALACTOPYRANOSIDE英文同义词alpha-d-galactopyranoside,4-nitrophenyl;4-NITROPHENYL-ALPHA-D-GALACTOPYRANOSIDE;PNP-ALPHA-D-GAL;PNPALPHA-D-GALACTOPYRANOSIDE;PNP-ALPHA-GAL;PNPG;P-NITROPHENYLA-D-GALACTOPYRANOSIDE;P-NITROPHENYLALPHA-D-GALACTOPYRANOSIDECAS号7493-95-0分子式C12H15NO8分子量301.25EINECS号231-343-6相关类别其他生化试剂;酶与辅酶;酶类;糖化学分析标准品;糖类（碳水化合物）;生化试剂;酶底物;糖类化合物;氨基酸;植物提取物;生化试剂-酶类;糖苷水解酶底物;分析试剂-显色剂;Substrates;13C&2HSugars;Biochemistry;Galactose;Glycosides;Sugars;Enzymesubstrates;Carbohydrates&Derivatives;substrate;通用生化试剂-酶与辅酶;其它Mol文件7493-95-0.mol结构式4-硝基苯-α-D-吡喃半乳糖苷性质熔点166-169°C沸点58Chemicalbook2.2±50.0°C(Predicted)密度1.599±0.06g/cm3(Predicted)折射率239°(C=1,H2O)储存条件-20°C溶解度甲醇（微溶）、水（微溶）形态固体酸度系数(pKa)12.55±0.70(Predicted)颜色白色至类白色BRN92214InChIKeyIFBHRQDFSNCLOZ-IIRVCBMXSA-NLogP-0.550(est)CAS数据库7493-95-0(CASDataBaseReference)4-硝基苯-α-D-吡喃半乳糖苷用途与合成方法生物活性4-Nitrophenylα-D-galactopyranoside(PNP-alpha-D-Gal)是一种4-硝基苯基(pNP)糖吡喃糖苷的人工底物，用于检测α-半乳糖苷酶活性。当4-Nitrophenylα-D-galactopyranoside用作底物时，释放的pNP量会显着增加。体外研究Using4-nitorophenol(pNP)-glycopyranosidesaspseudosubstrates,theamountofliberatedpNPfromthe4-Nitrophenylα-D-galactopyranosideissignificantlyhigherthanthatfromtheotherpNP-glycopyranosidesatpH4.0whereasnoactivitywasdetectedatpH7.0.Thedigestionassaysusing4-nitrophenyl(pNP)glycopyranosidesasartificialsubstratesshowsthatyieldinliberatedgalactoseresiduesfrom4-Nitrophenylα-D-galactopyranosidemainlyatpH4.0,i.e.thepHlevelwhereyieldthresholdisdecreasedatmost.用途α-D-半乳糖苷酶（α-D-Galactosidase）的底物。结合到大肠杆菌乳糖蛋白载体上。α-D-牛乳糖用培养基 |
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