Triamcinolone Acetonide Impurity 52 CAS 3028309-43-2
| CAS No. | 3028309-43-2 |
| Molecular Formula | C19H22O2 |
| Molecular Weight | 282.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Triamcinolone Acetonide Impurity 52 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.
Triamcinolone Acetonide Impurity 52 (CAS 3028309-43-2) is a certified pharmaceutical impurity reference standard with the molecular formula C19H22O2 and a molecular weight of 282.38 g/mol.
Based on its molecular formula C19H22O2, Triamcinolone Acetonide Impurity 52 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 282.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C19H22O2 |
| Molecular Weight | 282.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
Related Triamcinolone Standards
- Triamcinolone Acetonide Impurity 39 (CAS 85197-66-6)
- Triamcinolone Acetonide Impurity 53 (CAS 61618-63-1)
- Triamcinolone Acetonide Impurity 36 (CAS 159210-07-8)
- Triamcinolone Acetonide Impurity 8 (Pretriamcinolone) (CAS CATO-C4X-13268)
- Triamcinolone Acetonide Impurity 43 (CAS CATO-C4X-132643)
- Triamcinolone Acetonide EP Impurity A (CAS 124-94-7)
- Triamcinolone EP Impurity C (CAS 337-02-0)
- Triamcinolone Impurity 10 (CAS 3800-28-0)
Recommended Standards
- Aclidinium bromide Impurity 15 (CAS CATO-C4X-132515)
- Mianserin EP Impurity A (CAS 57321-32-1)
- Netupitant Impurity 6 (CAS CATO-C4X-12236)
- Mianserin Impurity 84 (CAS CATO-C4X-136984)
- Avatrombopag Impurity 16 (CAS CATO-C4X-223416)
- Gliclazide Impurity 8 (CAS 39051-77-9)
- Binimetinib Impurity N2 (CAS 1415559-93-1)
- 2-(3-(Difluoromethyl)-4-methyl-1H-pyrazol-1-yl)ethan-1-ol (CAS 1946823-93-3)
- 5-(4-Chlorophthalazin-1-yl)-N-isopropyl-2-methylbenzenesulfonamide (CAS 732260-56-9)
- Ethambutol Hydrochloride EP Impurity D (CAS 52399-93-6)
- 5-(Benzylamino)-N-ethyl-1-phenyl-1H-pyrazole-4-carboxamide (CAS 136139-67-8)
- (4R)-4-hydroxycyclopent-2-en-1-one (CAS 59995-47-0)
- Fluconazole Impurity 47 (CAS CATO-C4X-101947)
- Semaglutide Impurity 1(OtBu-Ste-D-γGlu(OtBu)-AEEA-AEEA-OH) (CAS CATO-C4X-22261)
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