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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 2024/12/17 08:16:02
7493-95-0 結(jié)構(gòu)式 7493-95-0 結(jié)構(gòu)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-GALACTOPYRANOSIDE
GAL1-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(xué)性質(zhì)

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(shù)(pKa)12.55±0.70(Predicted)
形態(tài)固體
顏色白色至灰白色
BRN92214
InChIKeyIFBHRQDFSNCLOZ-IIRVCBMXSA-N
LogP-0.550 (est)
CAS 數(shù)據(jù)庫7493-95-0(CAS DataBase Reference)

安全數(shù)據(jù)

危險性符號(GHS)GHS hazard pictograms
GHS07
警示詞警告
危險性描述H315-H319-H335
危險品標(biāo)志Xi
危險類別碼36/37/38
安全說明S22-S24/25
WGK Germany3
海關(guān)編碼29400090

應(yīng)用領(lǐng)域

用途一
α-D-半乳糖苷酶(α-D-Galactosidase)的底物。結(jié)合到大腸桿菌乳糖蛋白載體上。

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(dāng) 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.

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