33034 Sigma-Aldrich

L-Ascorbic acid

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.7-100.5% (oxidimetric)

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Synonym: L-Threoascorbic acid, Antiscorbutic factor, Vitamin C

  • CAS Number 50-81-7

  • Empirical Formula (Hill Notation) C6H8O6

  • Molecular Weight 176.12

  •  Beilstein Registry Number 84272

  •  EC Number 200-066-2

  •  MDL number MFCD00064328

  •  PubChem Substance ID 24859847

Properties

Related Categories A-B, Puriss p.a. ACS, AN-AZ, Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography,
grade   ACS reagent, reag. ISO, reag. Ph. Eur.
  puriss. p.a.
assay   99.7-100.5% (oxidimetric)
optical activity   [α]20/D +20.5 to +21.5°, c = 10% in H2O
impurities   related substances, in accordance (HPLC)
  ≤0.001% heavy metals (as Pb)
ign. residue   ≤0.05% (as SO4)
loss   ≤0.1% loss on drying, 105 °C
pH   2.1-2.6 (20 °C, 5%)
mp   190-194 °C (dec.)
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤20 mg/kg
cation traces   As: ≤1 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤2 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤10 mg/kg
suitability   complies for appearance of solution
  passes test for identity (IR)
Gene Information   human ... SLC23A2(9962)

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