Maxacalcitol Impurity 19 CAS 192573-34-5
| CAS No. | 192573-34-5 |
| Molecular Formula | C23H42O4Si |
| Molecular Weight | 410.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 410.66 g/mol gives Maxacalcitol Impurity 19 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Maxacalcitol Impurity 19 (CAS 192573-34-5) is a certified pharmaceutical impurity reference standard with the molecular formula C23H42O4Si and a molecular weight of 410.66 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Maxacalcitol Impurity 19 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 410.66 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.
As a certified reference material (CRM), Maxacalcitol Impurity 19 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 | C23H42O4Si |
| Molecular Weight | 410.66 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2012 |
Related Maxacalcitol Standards
- Maxacalcitol Impurity 20 (CAS 192573-35-6)
- Maxacalcitol impurity 43 (CAS 81506-25-4)
- Maxacalcitol (CAS 103909-75-7)
- Maxacalcitol Impurity 1 (CAS 169218-34-2)
- Maxacalcitol Impurity 11 (CAS 142785-55-5)
- Maxacalcitol Impurity 12 (CAS 142927-18-2)
- Maxacalcitol Impurity 2 (CAS 221696-55-5)
- Maxacalcitol Impurity 3 (CAS 132071-85-3)
Recommended Standards
- tert-Butyl (7-chloro-4-iodobenzo[d]thiazol-2-yl)carbamate (CAS 2803283-90-9)
- N-(5-(5-Bromothiophen-2-yl)-1,3,4-oxadiazol-2-yl)-3-(2-chlorophenyl)acrylamide (CAS 1058189-78-8)
- tert-Butyl (6-chloro-4-iodobenzo[d]thiazol-2-yl)carbamate (CAS 2803283-32-9)
- Octyl 3-Octyloxiraneoctanoic Acid (CAS 106-84-3)
- Cefoperazone Impurity 16 (CAS 67275-31-4)
- Adenosine Impurity 22 (CAS 17236-65-6)
- Thiocolchicoside EP Impurity J (Thiocolchicoside Impurity D1SO) (Mixture of Diastereomers) (CAS 1359973-79-7)
- 1086379-38-5 [6-(2-Aziridin-1-ylethoxy)pyridin-3-yl]methylamine (CAS 1086379-38-5)
- 2-(4-Chlorophenyl)thiazole-4-carboxylic Acid (CAS 17228-98-7)
- 3-Ethyl-6-nitro-1,3-benzoxazol-2-one (CAS 32418-07-8)
- 2-Bromo-N-(5-chloro-2-methoxyphenyl)propanamide (CAS 34836-61-8)
- tert-Butyl ((3S,5R)-5-fluoropiperidin-3-yl)carbamate (CAS 1405128-38-2)
- 2-(4-Fluorophenyl)quinoxaline (CAS 449-46-7)
- Semaglutide impurity 251 (CAS CATO-C4X-2226251)
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