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
• NACRES: NA.21
• PubChem Substance ID: 57653660
• UNSPSC Code: 12352100
• EC Number: 200-066-2
• MDL number: MFCD00064328
• Beilstein/REAXYS Number: 84272

Properties

• Product Name: L-Ascorbic acid, puriss. p.a., ≥99.0% (RT)
• InChI key: CIWBSHSKHKDKBQ-JLAZNSOCSA-N
• 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
• SMILES string: OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O
• biological source: synthetic (Organic)
• 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
• Quality Level: 200
• Gene Information: human ... SLC23A2(9962)

Description

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.[1]

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.[2][3][4][5]

Other Notes

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)