Glycosyl compounds
Medchemexpress LLC 4-Nitrophenyl α-L-rhamnopyranoside | 18918-31-5 | 99.8% | 285.25 | 50 MG
4-Nitrophenyl α-L-rhamnopyranoside is a substrate commonly used in various biochemical assays to measure the activity of enzymes that hydrolyze rhamnose, such as α-L-rhamnosidase. It possesses unique chemical properties that enable its hydrolysis by these enzymes, resulting in the formation of a yellow product called p-nitrophenol. This characteristic makes it a valuable tool for detecting and quantifying rhamnohydrolase activity in biological samples or microbial cultures.
- Commonly used substrate in biochemical assays
- Measures activity of enzymes that hydrolyze rhamnose, such as α-L-rhamnosidase
- Hydrolysis forms a yellow product, p-nitrophenol
- Valuable tool for detecting and quantifying rhamnohydrolase activity in biological samples or microbial cultures
Medchemexpress LLC Cotinine N-β-D-glucuronide | 139427-57-9 | 96.6% | 352.34 | C16H20N2O7 | 1 MG
Cotinine N-β-D-glucuronide is the glucuronide conjugate of cotinine supplied as an analytical reference standard for metabolite and biomarker research related to nicotine exposure. The material is provided as a white to off-white solid with documented HPLC purity and elemental analysis suitable for analytical workflows.
- Analytical reference standard for cotinine metabolite studies
- HPLC purity 96.6%
- White to off-white solid with documented appearance
- CAS number 139427-57-9; formula C16H20N2O7; MW 352.34
- Storage: sealed, away from moisture; in solvent: -80°C (up to 6 months), -20°C (up to 1 month)
- COA includes HPLC and elemental analysis data for quality verification