| 4-Nitrophenyl 4,6-ethylidene-a-D-maltoheptaoside is a substrate used in a reference measurement method for ?-amylase activity in the diagnosis of acute pancreatitis, approved by the International Federation of Clinical Chemistry (IFCC). The substrate is hydrolysed by serum a-amylase into shorter 4-nitrophenylated oligosaccharides and their free counterparts. These reaction products are channeled into an indicator reaction with a-glucosidase and are degraded into glucose and the chromophore, 4-nitrophenol. Synonyms: Ethylidene-4-nitrophenyl-a-D-maltoheptaoside, 4,6-Ethylidene-4-nitrophenyl-D-maltoheptaoside, (4aR,6R,7R,8R,8aS)-6-(((2R,3S,4R,5R,6R)-6-(((2R,3S,4R,5R,6R)-6-(((2R,3S,4R,5R,6R)-6-(((2R,3S,4R,5R,6R)-6-(((2R,3S,4R,5R,6R)-6-(((2R,3S,4R,5R,6R)-4,5-dihydroxy-2-(hydroxymethyl)-6-(4-nitrophenoxy)tetrahydro-2H-pyran-3-yl)oxy)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3 CAS No: 96597-16-9 Molecular Formula: C50H77NO38 Molecular Weight: 1300.13 Appearance: White to light yellow powder Purity: 90% Water (KF): 3% Storage and Stability: May be stored at RT for short-term only. Long-term storage is recommended at 4C. For maximum recovery of product, centrifuge the original vial prior to removing the cap. |
