10850

D-(−)-Arabinose

suitable for microbiology, ≥99.0%

• Empirical Formula (Hill Notation): C₅H₁₀O₅
• CAS Number: 10323-20-3
• Molecular Weight: 150.13
• Beilstein: 1723079
• EC Number: 233-708-5
• MDL number: MFCD00064361
• UNSPSC Code: 41106212
• PubChem Substance ID: 329749193
• NACRES: NA.85

Properties

• Quality Level: 200
• Assay: ≥99.0% (sum of enantiomers, HPLC); ≥99.0%
• form: powder
• optical activity: [α]20/D −104±2.0°, 24 hr, c = 10% in H₂O
• ign. residue: ≤0.1% (as SO₄)
• loss: ≤0.1% loss on drying, 20 °C (HV)
• mp: 162-164 °C (lit.)
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: As: ≤0.1 mg/kg; Ca: ≤500 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤25 mg/kg; Fe: ≤17 mg/kg; K: ≤50 mg/kg; Mg: ≤10 mg/kg; Mn: ≤5 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤15 mg/kg
• application(s): microbiology
• SMILES string: O[C@@H]1COC(O)[C@@H](O)[C@@H]1O
• InChI: 1S/C5H10O5/c6-2-1-10-5(9)4(8)3(2)7/h2-9H,1H2/t2-,3-,4+,5?/m1/s1
• InChI key: SRBFZHDQGSBBOR-ZRMNMSDTSA-N

Description

General description

D-Arabinose is a rare aldopentose, and is rarely utilized by enteric bacteria as a source of carbon and energy. It is also found in the aloins of the plant genus Aloe and as a constituent of the polysaccharide of the bacterial genus Mycobacterium. Some of the enteric bacteria like Escherichia coli K-12 can mutate to utilize D-arabinose.

Application

D-(-)-Arabinose has been used as an inducer of λ-RED recombinant gene expression.

Biochem/physiol Actions

D-Arabinose is a reducing sugar. It is a pentose analog of D-ribose that is a constituent of mycobacterial cell wall arabinogalactans. It is also a substrate for D-erythroascorbic acid synthesis in yeast.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves