L(+)Ascorbic acid Cell culture 250GM Go Back


: 50-81-7

Molecular Formula

: C6H8O6

Molecular Weight

: 176.13
Appearance: White or almost white, crstalline powder or colorless crystal, becoming discoloured on exposure to air and moisture.
Solubility: Freely soluble in water, sparingly soluble in ethanol (96%)
Identification A (By UV spectrophotometry): Absorption maximum at : 243 nm, Specific absorbance at the absorption maximum : 545 to 585.
Identification B (By IR): IR spectra of the sample should be concomittant with IR spectra of the standard.
Identification C (By pH): 2.1 - 2.6
Appearance of solution: Solution should be clear and not more intensely colored than reference solution BY7.
Impurity E (Oxalic acid): NMT 0.2%
Related substances Impurity C (L-sorbosonic acid): NMT 0.15%
Related substances Impurity D (Methyl L-sorbosonate): NMT 0.15%
Related substance (Unspecified impurities): NMT 0.10%
Related substances: Sum of impurities other than C and D: NMT 0.2%
Copper (Cu): NMT 5 ppm
Iron: NMT 2 ppm
Sulfated ash: NMT 0.1%
Assay: 99.0% - 100.5%
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