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D-阿拉伯糖/D-树胶醛糖/D-阿糖/D-阿戊糖/D-(?)-Arabinose
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型号:T0029

更新时间:2017-07-19  |  阅读:1198

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
 

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