Ascorbic Acid EP Impurity C CAS 526-98-7
| CAS No. | 526-98-7 |
| Molecular Formula | C6H10O7 |
| Molecular Weight | 194.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ascorbic Acid EP Impurity C meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
As a process- or degradation-related impurity, Ascorbic Acid EP Impurity C (CAS 526-98-7, C6H10O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carbohydrate-derived structure, Ascorbic Acid EP Impurity C is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 194.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C6H10O7 |
| Molecular Weight | 194.14 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
Related Ascorbic Standards
- Ascorbic Acid EP Impurity G (CAS 66757-69-5)
- Ascorbic Acid EP Impurity H (CAS 122046-79-1)
- Ascorbic acid 13C6 (CAS 1354064-87-1)
- L-Ascorbic Acid-13C6 (CAS 1331939-77-5)
- D-Ascorbic Acid Impurity 19 (CAS 67776-07-2)
- Ascorbic Acid EP Impurity D (CAS 3031-98-9)
- L-Ascorbic acid-6- (CAS 149153-08-2)
- L-Ascorbic Acid-1-13C (CAS 178101-88-7)
Recommended Standards
- Gefitinib Impurity 28 (CAS 1379208-77-1)
- (3R,4S,5R)-Ascorbic Acid EP Impurity C (CAS 21675-47-8)
- 2-(Benzo[d][1,3]dioxol-5-yl)-2-oxoacetic acid (CAS 62396-98-9)
- Niraparib Impurity 7 (CAS 1289162-62-4)
- Ozenoxacin Impurity 5 (CAS CATO-C4X-27965)
- N-Nitroso Linagliptin impurity 100 (CAS CATO-C4X-1101100)
- Cefpirome Impurity 32 (CAS CATO-C4X-120732)
- 2-(2-Aminoethyl)-6-(4-methoxyphenyl)pyridazin-3(2H)-one (CAS 901886-37-1)
- (3-Chlorophenyl)(4-(ethylthio)phenyl)methanol (CAS 844683-56-3)
- 2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 2048186-75-8)
- ((2R,3R)-2-(4-Fluoro-2-methylphenyl)pyrrolidin-3-yl)methanol (CAS 815631-70-0)
- 3-(1,2,4-Oxadiazol-5-yl)propan-1-amine hydrochloride (CAS 1394040-98-2)
- 5-Chloro-1-methyl-3-phenyl-4-({[4-(propan-2-yl)phenyl]sulfanyl}methyl)-1H-pyrazole (CAS 318234-19-4)
- Epidermal Growth Factor Receptor Peptide (985-996) (CAS 96249-43-3)
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