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33034 Sigma-Aldrich

L-Ascorbic acid

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

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

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Properties

Related Categories A-B, Puriss p.a. ACS, Acids, Acids & Bases, Analytical Reagents, Analytical Reagents for General Use,
grade   ACS reagent, reag. ISO, reag. Ph. Eur.
InChI Key   CIWBSHSKHKDKBQ-JLAZNSOCSA-N
grade   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 (by ICP-OES)
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.)
solubility   water: soluble176 g/L at 20 °C
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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All labs need water
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
CI7650000
Protocols & Articles

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