Riboflavin EP Impurity D CAS 52134-62-0
| CAS No. | 52134-62-0 |
| Molecular Formula | C17H20N4O7 |
| Molecular Weight | 392.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Riboflavin EP Impurity D (CAS 52134-62-0), a pharmacopoeial impurity reference standard (molecular formula C17H20N4O7, MW 392.36 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Riboflavin EP Impurity D is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 392.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
CATO manufactures Riboflavin EP Impurity D under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H20N4O7 |
| Molecular Weight | 392.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 4 |
Related Riboflavin Standards
- Riboflavin Sodium Phosphate Impurity 6 (CAS 36995-95-6)
- Riboflavin Impurity 18 (CAS CATO-C4X-181918)
- Riboflavin Impurity N16 (CAS 5978-87-0)
- Riboflavin Vitamin B2 (CAS 5984-80-5)
- Riboflavin Impurity 17 (CAS CATO-C4X-181917)
- Riboflavin Phosphate Hydrate EP Impurity D (CAS CATO-C4X-181927)
- Riboflavin Impurity 33 (CAS 1195174-65-2)
- Riboflavin Impurity 19 (CAS CATO-C4X-181919)
Recommended Standards
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- Sulfamethoxazole Impurity 9 (CAS 18607-98-2)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com