CAS: 36467-68-2
Molecular Formula: C40H67N5O26
Molecular Weight: 1034.0
Purity: > 95%
High purity Pentaacetyl-chitopentaose for use in research, biochemical enzyme assays and in vitro diagnostic analysis.
Prepared from chitin.
High purity Phosphoenolypyruvate (PEP) for use as a cofactor for research, biochemical enzyme assays and in vitro diagnostic analysis.
MW: 267.2 (as anhydrous free acid). Purity: > 95%; water content: < 1%; Pyruvate (contaminant): < 1%.
The Primary Amino Nitrogen (PANOPA) Assay Kit is suitable for the measurement and analysis of primary amino nitrogen in grape juice/must and wine.
Suitable for manual, auto-analyser and microplate formats.
UV-method for the determination of Primary Amino Nitrogen in
grape juice, must, wine and other materials
Principle:
(room temperature)
(1) Amino nitrogen + N-acetyl-L-cysteine + o-phthaldialdehyde →
isoindole derivative
Kit size: 100 assays (manual) / 1000 (microplate)
/ 1100 (autoanalyser)
Method: Spectrophotometric at 340 nm
Reaction time: ~ 15 min
Detection limit: 2.59 mg N/L
Application examples:
Grape juice, must, wine and other materials
Method recognition: Novel method
Advantages
Debranched arabinan dyed with Procion Red dye. Substrate for the assay of endo-1,5-α-L-arabinanase.
阿拉伯聚糖检测底物