95209

L-Ascorbinsäure

BioUltra, ≥99.5% (RT)

• Synonym(e): L-Threoascorbinsäure, Anti-Scorbut-Faktor, Vitamin C
• Empirische Formel (Hill-System): C₆H₈O₆
• CAS-Nummer: 50-81-7
• Molekulargewicht: 176.12
• Beilstein: 84272
• EG-Nummer: 200-066-2
• MDL-Nummer: MFCD00064328
• UNSPSC-Code: 12352205
• PubChem Substanz-ID: 57653659
• NACRES: NA.79

Eigenschaften

• Biologische Quelle: synthetic
• Qualität: biotech. grade
• Produktlinie: BioUltra
• Assay: ≥99.5% (RT)
• Form: powder or crystals
• Verunreinigungen: insoluble matter, passes filter test
• Glührückstand: ≤0.05% (as SO₄)
• Verlust: ≤0.05% loss on drying, 20 °C (HV)
• Farbe: white to off-white
• pH-Wert: 1.0-2.5 (25 °C, 1 M in H₂O)
• mp (Schmelzpunkt): 190-194 °C (dec.)
• Löslichkeit: H₂O: 1 M at 20 °C, clear, colorless
• Anionenspuren: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg
• Kationenspuren: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤25 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• Absorption: cut-off at 306 nm in H₂O at 1 M
• 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
• InChIKey: CIWBSHSKHKDKBQ-JLAZNSOCSA-N
• Angaben zum Gen: human ... SLC23A2(9962)

Beschreibung

Allgemeine Beschreibung

L-Ascorbic acid, also known as vitamin C, is a water-soluble vitamin.[1] It is naturally present in a variety of foods such as citrus fruits and vegetables. It is present only in minimal amount in milk.[2]

Anwendung

L-Ascorbic acid has been used as an antioxidant supplement in incubation solution for dissected and sliced brain sections.[3][4] It has also been used as a supplement in phosphate-buffered saline (PBS) wash buffer during oxidative GFP chromophore formation.[5]

Biochem./physiol. Wirkung

L-Ascorbic acid (Vitamin C) acts as a potential anti-oxidant[6] and reducing agent.[7] It prevents bacterial mutagenesis induced by N-nitroso compounds.[8] In plants, vitamin C elicits several cellular processes such as growth, apoptosis, pathogen responses, hormone responses, flowering and senescence, and protection against environmental stresses. [7] Vitamin C deficiency is associated with the development of scurvy, prominent - gingivitis, perifollicular hemorrhages, poor wound healing, petechiae and ecchymosis.[2]

Sonstige Hinweise

Denaturation of proteinscitation; Dimeric association of E. coli RNA polymerase α subunits, studied by cleavage of single cysteine α subunits conjugated to Fe-BABEcitation.

Denaturation of proteins[9]; Dimeric association of E.coli RNA polymerase α subunits, studied by cleavage of single cysteine α subunits conjugated to Fe-BABE[10]

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type N95 (US)