Valsartan Impurity 16 CAS 195435-23-5
| CAS No. | 195435-23-5 |
| Molecular Formula | C43H43N5O3 |
| Molecular Weight | 677.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Valsartan Impurity 16 (CAS 195435-23-5), a certified reference material (molecular formula C43H43N5O3, MW 677.83 g/mol) for analytical method development and quality control.
Structurally, Valsartan Impurity 16 (C43H43N5O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 25.0, corresponding to approximately 25 ring(s) or double-bond equivalent(s). With a molecular weight of 677.83 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Valsartan Impurity 16 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 | C43H43N5O3 |
| Molecular Weight | 677.83 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2012 |
| Nitrogen Atoms | 5 |
Related Valsartan Standards
- Valsartan Impurity 32 (CAS CATO-C4X-105732)
- Valsartan Impurity 47 (CAS 783369-52-8)
- Valsartan Methyl Ester N2-Trityl Analog (CAS 883223-10-7)
- Valsartan Impurity 133 (CAS CATO-C4X-1057133)
- Valsartan Impurity 45 (CAS 358685-13-9)
- Valsartan Impurity 81 (CAS CATO-C4X-105781)
- Valsartan Impurity 107 (CAS CATO-C4X-1057107)
- Valsartan Impurity 33 (CAS CATO-C4X-105733)
Recommended Standards
- N-[(1S,2R)-1-Benzyl-2-hydroxy-2-((2R,4R)-4-phenoxy-pyrrolidin-2-yl)-ethyl]-3-[(R)-2-(4-methyl-thiazol-2-yl)-pyrrolidine-1-carbonyl]-5-oxazol-2-yl-benzamide (CAS 1221263-95-1)
- BDD26-2ThCl (CAS 2379974-45-3)
- Caged D-erythro-Sphingosine-1-phosphate (CAS 207516-11-8)
- Amyloid b/A4 Protein Precursor770 (403-407) (H-1608.0025) (CAS 148914-08-3)
- 5-Methyl-2-(1-methylcyclohexyl)oxazole-4-carboxylic acid (CAS 89724-33-4)
- 4-Bromo-2-chloro-1-((2-methoxyethoxy)methyl)benzene (CAS 1598037-01-4)
- 4-Hydrazinyl-3-hydroxy-2-naphthoic acid (CAS 333395-43-0)
- 4-Methyl-3-[(4-methylphenyl)sulfamoyl]benzoic acid (CAS 104941-65-3)
- n-(4-Fluoro-3-methylbenzyl)pentan-1-amine (CAS 1247210-35-0)
- Benzbromarone Impurity 27 (CAS CATO-C4X-225027)
- 1-(Methoxycarbonyl)piperidine-3-carboxylic acid (CAS 1019363-10-0)
- N-{[2-chloro-6-(1H-pyrrol-1-yl)phenyl]methyl}-2-phenoxyacetamide (CAS 866042-76-4)
- (S)-4,7-Dimethyl-2,3-dihydrobenzofuran-3-amine (CAS 1213667-36-7)
- Osteoblast Activating Peptide (mouse, rat) (H-7262.0500) (CAS 1222950-80-2)
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