7493-95-0
中文名稱
4-硝基苯-α-D-吡喃半乳糖苷
英文名稱
4-NITROPHENYL-ALPHA-D-GALACTOPYRANOSIDE
CAS
7493-95-0
EINECS 編號
231-343-6
分子式
C12H15NO8
MDL 編號
MFCD00065050
分子量
301.25
MOL 文件
7493-95-0.mol
更新日期
2026/05/26 17:08:00
7493-95-0 結構式
基本信息
中文別名
4-硝基苯-α-D-吡喃半乳糖苷4-硝基苯基-α-D-吡喃半乳糖苷
4-硝基苯基-ALPHA-D-半乳糖苷
4-硝基苯-ALPHA-D-半乳糖苷
對硝基苯-ALPHA-D-半乳糖苷
4-硝基苯基-半乳糖苷
4-硝基苯基-Α-D-吡喃半乳糖苷, 98+%
英文別名
4-NITROPHENYL-ALPHA-D-GALACTOPYRANOSIDEGAL1-A-PNP
NITROPHENYL-A-D-GALACTOPYRANOSIDE, 4-
P-NITROPHENYL A-D-GALACTOPYRANOSIDE
P-NITROPHENYL ALPHA-D-GALACTOPYRANOSIDE
P-NITROPHENYL ALPHA-D-GALACTOSIDE
P-NITROPHENYL-ALPHA-D-GALACTOYRANOSIDE
PNP-ALPHA-D-GAL
PNP ALPHA-D-GALACTOPYRANOSIDE
PNP-ALPHA-GAL
PNPG
alpha-d-galactopyranoside,4-nitrophenyl
4-Nitrophenyl α-D-galacto
pyran
oside
P-Nitrophenyl-Alpha-D-GalactopyranosideA.R.
p-Nitrophenyl--D-galactoyranoside
4’-nitrophenyl-b-D-galactopyranoside
4-nitrophenyl-à-d-galactopyranoside
4-Nitrophenyla-D-galactopyranoside
Gal1-α-PNP
4-Nitrophenyl-ɑ-D-galactopyranoside, 98+%
所屬類別
生物化工：單糖物理化學性質
熔點166-169 °C
沸點582.2±50.0 °C(Predicted)
密度1.599±0.06 g/cm3(Predicted)
折射率239 ° (C=1, H2O)
儲存條件2-8°C
溶解度少許溶于甲醇和水
酸度系數(pKa)12.55±0.70(Predicted)
形態(tài)固體
顏色白色至灰白色
BRN92214
InChIInChI=1/C12H15NO8/c14-5-8-9(15)10(16)11(17)12(21-8)20-7-3-1-6(2-4-7)13(18)19/h1-4,8-12,14-17H,5H2/t8-,9+,10+,11-,12+/s3
InChIKeyIFBHRQDFSNCLOZ-IIRVCBMXSA-N
SMILESO(C1C=CC(N(=O)=O)=CC=1)[C@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O |&1:10,12,15,17,19,r|
LogP-0.550 (est)
安全數據
警示詞警告
危險性描述H315-H319-H335
危險品標志Xi
危險類別碼36/37/38
安全說明S22-S24/25
WGK Germany3
海關編碼29400090
存儲類別11 - Combustible Solids
知名試劑公司產品信息
Acros Organics
4-Nitrophenyl-alpha-D-galactopyranoside(7493-95-0)Sigma Aldrich
7493-95-0(sigmaaldrich)4-硝基苯-α-D-吡喃半乳糖苷價格(試劑級)
| 報價日期 | 產品編號 | 產品名稱 | CAS號 | 包裝 | 價格 |
| 2026/03/03 | L13376 | 4-硝基苯基-α-D-吡喃半乳糖苷, 98+% 4-Nitrophenyl-alpha-D-galactopyranoside, 98+% | 7493-95-0 | 100mg | 131元 |
| 2025/12/22 | N0492 | 4-硝基苯基α-D-吡喃半乳糖苷[α-D-牛乳糖用培養(yǎng)基] 4-Nitrophenyl alpha-D-Galactopyranoside [Substrate for alpha-D-Galactosidase] | 7493-95-0 | 200MG | 490元 |
| 2025/12/22 | N0492 | 4-硝基苯基α-D-吡喃半乳糖苷[α-D-牛乳糖用培養(yǎng)基] 4-Nitrophenyl alpha-D-Galactopyranoside [Substrate for alpha-D-Galactosidase] | 7493-95-0 | 1G | 1470元 |
常見問題列表
生物活性
4-Nitrophenyl α-D-galactopyranoside (PNP-alpha-D-Gal) 是一種 4-硝基苯基 (pNP) 糖吡喃糖苷的人工底物，用于檢測 α-半乳糖苷酶活性。當 4-Nitrophenyl α-D-galactopyranoside 用作底物時，釋放的 pNP 量會顯著增加。體外研究
Using 4-nitorophenol (pNP)-glycopyranosides as pseudosubstrates, the amount of liberated pNP from the 4-Nitrophenyl α-D-galactopyranoside is significantly higher than that from the other pNP-glycopyranosides at pH 4.0 whereas no activity was detected at pH 7.0.
The digestion assays using 4-nitrophenyl (pNP) glycopyranosides as artificial substrates shows that yieldin liberated galactose residues from 4-Nitrophenyl α-D-galactopyranoside mainly at pH 4.0, i.e. the pH level where yield threshold is decreased at most.