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Description
Biochem/physiol Actions 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.
Properties
product line BioUltra
assay ≥99.5% (sum of enantiomers, HPLC)
optical activity [α]20/D +104±1°, 24 hr, c = 10% in H2O
total impurities insoluble matter, passes filter test
ign. residue ≤0.1%
loss ≤0.1% loss on drying
pH 4-7 (25 °C, 1 M in H2O)
mp 155-158 °C
160-163 °C(lit.)
solubility H2O: 1 M at 20 °C, clear, colorless
anion traces chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg
cation traces Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤20 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg
λ 1 M in H2O
UV absorption λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.04
Safety
Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
WGK Germany 3
References
reference Khlebnikov, A., et al. , Modulation of gene expression from the arabinose-inducible araBAD promoter. J. Ind. Microbiol. 29, 34-37, (2002)
Beilstein Beil. 1,IV,4217 / Beil. 31,32
FT-IR 1 (1), 188:D / FT-IR 2 (1), 273:C / FT-NMR 1 (1), 293:B / IR-Spectra (2), 106:C / IR-Spectra (3), 114:E / NMR-Reference 2 (2), 906:A / RegBook 1 (1), 189:K / Sigma FT-IR 1 (1), 1046:A / Structure Index 1, 25:B:8
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