95210

L-Ascorbic acid

≥99.0% (RT), powder or crystals (possibly with chunks), puriss. p.a.

• Synonym(s): L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
• Empirical Formula (Hill Notation): C₆H₈O₆
• CAS Number: 50-81-7
• Molecular Weight: 176.12
• Beilstein: 84272
• EC Number: 200-066-2
• MDL number: MFCD00064328
• UNSPSC Code: 12352100
• PubChem Substance ID: 57653660
• NACRES: NA.21

Properties

• Product Name: L-Ascorbic acid, puriss. p.a., ≥99.0% (RT)
• biological source: synthetic (Organic)
• Quality Level: 200
• grade: puriss. p.a.
• Assay: ≥99.0% (RT)
• form: powder or crystals (possibly with chunks)
• optical activity: [α]20/D +21±0.5°, c = 10% in H₂O
• ign. residue: ≤0.1% (as SO₄)
• loss: ≤0.1% loss on drying, 110 °C
• color: white to off-white
• pH: 2.2-2.5 (25 °C, 50 mg/mL in H₂O)
• mp: 190-194 °C (dec.)
• solubility: H₂O: 50 mg/mL at 20 °C, clear, almost colorless
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg
• cation traces: Ca: ≤25 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤2 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; heavy metals: ≤5 ppm (by ICP-OES)
• functional group: ester; hydroxyl; ketone
• SMILES string: OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O
• InChI: 1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1
• InChI key: CIWBSHSKHKDKBQ-JLAZNSOCSA-N
• Gene Information: human ... SLC23A2(9962)

Description

General description

L-Ascorbic acid or vitamin C is a water-soluble vitamin found in various foodstuffs. Benefits of vitamin C may include protection against immune system deficiencies, cardiovascular disease, hyperpigmentation, skin protection, anti-aging, iron absorption, and red blood cell production. It is also useful in the biosynthesis of collagen, L-carnitine, and neurotransmitters.[1][2][3][4]

Application

L-Ascorbic acid can be used as a reducing agent for the preparation of reduced graphene oxide (rGO). It does not eliminate the oxygen functional group on the surface of rGO that can be advantageous for the synthesis of metal nanoparticles.[5]

Other Notes

Starting material for the synthesis of chiral building blocks [6][7][8][9]

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves