L(+)-Ascorbic acid 99.0-100.5% USP, Ph. Eur.
Supplier: VWR Chemicals
Ratings:
(No Reviews)
Total Ratings: 0
Avg. Ratings: 0.0 out of 5
Synonyms:
Ascorbic Acid
, L-Ascorbic acid
, Acidum ascorbicum
, (R)-5-((S)-1,2-Dihydroxyethyl)-3,4-dihydroxyfuran-2(5H)-one
83568.460EA
3040
GBP
83568.460
83568.360
83568.180
83568.290
L(+)-Ascorbic acid 99.0-100.5% USP, Ph. Eur.
L(+)-Ascorbic acid
Appearance: White or almost white, crystalline powder or colourless crystals, becoming discoloured on exposure to air and moisture.
Caution: Not for use as Active Pharmaceutical Ingredient (API)
Formula:
C₆H₈O₆ MW: 176.13 g/mol Boiling Pt: 553 °C (1013 hPa) Melting Pt: 190…192 °C Density: 1.694 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00064328 CAS Number: 50-81-7 EINECS: 200-066-2 Merck Index: 13,00837 |
Specification Test Results
Appearance | Conforms (see CoA/CoS) |
Heavy metals (as Pb) | Max. 10 ppm |
Residual solvents (CPMP/ICH/283/95) | Conforms |
Residues of metal catalysts or reagents | Unlikely by manuf.process |
As (Arsenic) | Max. 2 ppm |
Cd (Cadmium) | Max. 1 ppm |
Co (Cobalt) | Max. 1 ppm |
Hg (Mercury) | Max. 2 ppm |
Ni (Nickel) | Max. 1 ppm |
Pb (Lead) | Max. 2 ppm |
V (Vanadium) | Max. 1 ppm |
Conforms to Ph.Eur./USP | Passes test |
Ph.Eur. specifications: | |
Assay [Ph.Eur.] | 99.0 --> 100.5 % |
Identification B | Passes test Ph.Eur. |
Identification C [Ph.Eur.] | 2.1 --> 2.6 |
Appearance of solution | Passes test Ph.Eur. |
Specific optical rotation [Ph.Eur.] | 20.5 --> 21.5 ° |
Impurity E (Oxalic acid) [Ph.Eur.] | Max. 0.2 % |
Impurity C [Ph.Eur.] | Max. 0.15 % |
Impurity D [Ph.Eur.] | Max. 0.15 % |
Unspecified impurities [Ph.Eur.] | Max. 0.10 % |
Sum of impur.other than C and D[Ph.Eur.] | Max. 0.2 % |
Reporting threshold [Ph.Eur.]: | Max. 0.05 % |
Cu (Copper) [Ph.Eur.] | Max. 5 ppm |
Fe (Iron) [Ph.Eur.] | Max. 2 ppm |
Sulphated ash [Ph.Eur.] | Max. 0.1 % |
USP specifications: | |
Assay [USP] | 99.0 --> 100.5 % |
Identification A | Passes test USP |
Identification B | Passes test USP |
Residue on ignition [USP] | Max. 0.1 % |
Specific optical rotation [USP] | 20.5 --> 21.5 ° |
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