95210

L-acide ascorbique

puriss. p.a., ≥99.0% (RT)

• Synonyme(s) : Acide L-thréoascorbique, Facteur anti-scorbut, Vitamine C
• Formule empirique (notation de Hill): C₆H₈O₆
• Numéro CAS: 50-81-7
• Poids moléculaire : 176.12
• Numéro Beilstein : 84272
• Numéro CE : 200-066-2
• Numéro MDL: MFCD00064328
• Code UNSPSC : 12352100
• ID de substance PubChem : 57653660
• Nomenclature NACRES : NA.21

Propriétés

• Source biologique: synthetic (Organic)
• Niveau de qualité: 200
• Qualité: puriss. p.a.
• Pureté: ≥99.0% (RT)
• Forme: powder or crystals (possibly with chunks)
• Activité optique: [α]20/D +21±0.5°, c = 10% in H₂O
• Résidus de calcination: ≤0.1% (as SO₄)
• Perte: ≤0.1% loss on drying, 110 °C
• Couleur: white to off-white
• pH: 2.2-2.5 (25 °C, 50 mg/mL in H₂O)
• Pf: 190-194 °C (dec.)
• Solubilité: H₂O: 50 mg/mL at 20 °C, clear, almost colorless
• Traces d'anions: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg
• Traces de cations: 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)
• Chaîne SMILES: 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
• Clé InChI: CIWBSHSKHKDKBQ-JLAZNSOCSA-N
• Informations sur le gène: human ... SLC23A2(9962)

Description

Description générale

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.

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.

Autres remarques

Starting material for the synthesis of chiral building blocks

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)