详情介绍
Description
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.
Properties
grade for microbiology
assay ≥99.0% (sum of enantiomers, HPLC)
≥99.0%
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 156-160 °C
162-164 °C(lit.)
anion traces chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤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: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
Safety
Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
WGK Germany 3