2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3]
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英文名:2-Nitrophenyl β-D-galactopyranoside
- 别名:邻硝基苯-β-D-吡喃半乳糖苷 ONPG
- CAS号:369-07-3 分子式:C12H15O8N 分子量:301.25
P157254-100g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 100g 4400.00
P157253-25g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 25g 1566.00
P157250-5g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 5g 497.00
P157255-1g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 1g 158.00
P157253-25g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 25g 1566.00
P157250-5g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 5g 497.00
P157255-1g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 1g 158.00
订货编号 | 商品名称 | 规格 | 包装 | 单价 | 促销价 | 会员价 | 数量 |
P157254-100g | 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] | 99%,non-animal origin | 100g | 4400.00 | 4400.00 | 登录可见 |
P157254-100g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 100g 4400.00
|
P157253-25g | 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] | 99%,non-animal origin | 25g | 1566.00 | 1566.00 | 登录可见 |
P157253-25g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 25g 1566.00
|
P157250-5g | 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] | 99%,non-animal origin | 5g | 497.00 | 497.00 | 登录可见 |
P157250-5g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 5g 497.00
|
P157255-1g | 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] | 99%,non-animal origin | 1g | 158.00 | 158.00 | 登录可见 |
P157255-1g 2-硝基苯基-β-D-吡喃半乳糖苷 [369-07-3] 99%,non-animal origin 1g 158.00
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化学性质
溶于水、甲醇,水中溶解度可达15mg/ml。有吸湿性。 熔点:195℃(分解)
质量标准
99%,non-animal origin:
外观Appearance 白色至极微黄色粉末
红外光谱鉴定Infrared spectrometry 和对照品匹配
纯度Purity ≥99.0% (HPLC)
水分Water <0.2 % (K.F.)
比旋光度Specific rotation -68°~ -72° (c=1, H2O)
危险性质
用途及存储
用于检测β-半乳糖苷酶(β-galactosidase)活性,是β-半乳糖苷酶的显色底物。经β-半乳糖苷酶催化后可产生黄色产物,在410-420nm波长可以检测吸光度。
密封干燥保存。