85-1340-10　L-Arabinose 100g　CAS No:87-72-9　A3300

特徴

• L(+)-Arabinose is a pentose monosaccharide whose transcription is regulated by Ara-C proteins and is a substrate for L-arabinose dehydrogenase, galactose dehydrogenase. It is not fermented by yeast. Used as a one-way or reversible switch for protein expression. It is also used to make arabinosyl nucleosides. L-Arabinose is used as a substrate to identify, differentiate and characterize pentose sugar isomerase(s). L-Arabinose is used in the bioproduction of L-ribose. L-Arabinose is the naturally occurring isomer and is a constituent of plant polysaccharides. Most bacteria contain an inducible arabinose operon that codes for a series of enzymes and transporters that allows L-arabinose to be used as the sole carbon source in microbial culture.
• Synonyms:Beta-L-Arabinopyranose; Beta-L-(+)-ARABINOSE; L-(+)-Arabinose; Pectinose; Arabitol, L-(-)-(RG); L-Arabinopyranose; (2R,3R,4S,5S)-oxane-2,3,4,5-tetrol
• Molecular Formula:C5H10O5
• Molecular Weight:150.13
• Appearance:White crystalline powderPurity (HPLC):≥99%
• Melting Point:154-160ºCOptical Rotation:[a]D20 = +101 to +105º
• Solubility:Colorless to pale yellow, clear, complete in water. Partially soluble in 90% ethanol.
• Moisture:≤0.5%
• Ash:≤0.2%
• Heavy Metals (Pb):≤0.001%
• Storage and Stability:Powder may be stored at RT. Stable for 12 months.