Vitamin Impurity 34 CAS 54573-75-0
| CAS No. | 54573-75-0 |
| Molecular Formula | C28H44O2 |
| Molecular Weight | 412.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Vitamin Impurity 34 (CAS 54573-75-0), a pharmacopoeial impurity reference standard (molecular formula C28H44O2, MW 412.65 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a hydroxyl group, an ether linkage, Vitamin Impurity 34 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 412.65 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).
As a certified reference material (CRM), Vitamin Impurity 34 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.
Physical & Chemical Properties
| Molecular Formula | C28H44O2 |
| Molecular Weight | 412.65 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related Vitamin Standards
Recommended Standards
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- Ercalcidiol (CAS 21343-40-8)
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- Epinephrine Impurity 8 HCl (Mixture of Diastereomers) (CAS 3198-07-0)
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- 2-Fluoro-5-(4-(trifluoromethoxy)phenyl)pyridine, 97% (CAS 1261592-34-0)
- Ethyl 3-chloro-4-(methylamino)benzoate (CAS 1934944-03-2)
- 3-Chloro-5-(thiophen-2-yl)-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraene (CAS 851207-81-3)
- (2R,3R,4R,5R)-2-(acetoxymethyl)-5-methoxytetrahydrofuran-3,4-diyl diacetate (CAS 37077-80-8)
- 62-74-8 (CAS CATO-LCAD302283-AL)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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