7493-95-0 ,PNP-α-D-吡喃半乳糖苷 ,4-Nitrophenyl-α-D-galactopyranoside ,
CAS: 7493-95-0
C12H15NO8 / 301.25
MFCD00065050
The 4-Nitrophenyl-alpha-D-galactopyranoside is a high-quality chromogenic substrate specifically designed for the enzymatic assay of alpha-galactosidase. Upon enzyme catalysis, it yields a highly fluorescent 4-nitrophenol product, which allows easy and accurate measurement of enzyme activity in a variety of research applications, such as biochemical analysis, inhibitor screening, and enzyme kinetics studies.
CAS No: 7493-95-0 Synonyms: PNP-a-Gal MDL No: MFCD00065050 Chemical Formula: C12H15NO8 Molecular Weight: 301.25 |
CAS Number | 7493-95-0 |
Product Name | 4-nitrophenyl-alpha-D-galactopyranoside |
IUPAC Name | (2R,3R,4S,5R,6R)-2-(hydroxymethyl)-6-(4-nitrophenoxy)oxane-3,4,5-triol |
Molecular Formula | C12H15NO8 |
Molecular Weight | 301.25 g/mol |
InChI | InChI=1S/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+/m1/s1 |
InChI Key | IFBHRQDFSNCLOZ-IIRVCBMXSA-N |
SMILES | C1=CC(=CC=C1[N+](=O)[O-])OC2C(C(C(C(O2)CO)O)O)O |
Synonyms | 4-nitrophenyl-alpha-galactoside, 4-nitrophenylgalactoside, 4-nitrophenylgalactoside, (alpha-D)-isomer, p-nitrophenyl-alpha-D-galactopyranoside, p-nitrophenyl-alpha-galactoside, para-nitrophenyl-beta-D-galactoside, PNPG |
Canonical SMILES | C1=CC(=CC=C1[N+](=O)[O-])OC2C(C(C(C(O2)CO)O)O)O |
Isomeric SMILES | C1=CC(=CC=C1[N+](=O)[O-])O[C@@H]2[C@@H]([C@H]([C@H]([C@H](O2)CO)O)O)O |
COA:
name:4-Nitrophenyl-α-D-galactopyranoside
M.F.: C12H15O8 M.W.: 301.25 CAS: 7493-95-0
Items | Standards | Results |
Appearance | White or slightly yellow crystal powder | Complies |
Solubility | Soluble in DMF and insoluble in ether | Complies |
NMR and MS | Should comply | Complies |
Identification | IR and HPLC | Complies |
Specific rotation [α]20/D, (c=0.4, in water) | +218° ~ +222° | 220° |
Loss weight on dryness | Max. 1% | 0.5% |
Any impurity | Max. 0.5% | Complies |
Residue on ignition | Max.1% | 0.2% |
Heavy metals | Max.20 ppm | Complies |
TLC | Should be one spot | one spot |
Purity | Min.98% | 99.2% |
Assay by HPLC | 98% ~ 102% | 99.4% |
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