Valsartan Impurity 49 CAS CATO-C4X-105749
| CAS No. | CATO-C4X-105749 |
| Molecular Formula | C32H40N2O4 |
| Molecular Weight | 516.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Valsartan Impurity 49.
CATO supplies Valsartan Impurity 49 (CAS CATO-C4X-105749), a pharmacopoeial impurity reference standard (molecular formula C32H40N2O4, MW 516.67 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Valsartan Impurity 49 (C32H40N2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 516.67 g/mol, it falls into the moderately-high-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C32H40N2O4 |
| Molecular Weight | 516.67 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Valsartan Standards
- Valsartan Impurity 64 (CAS 143618-44-4)
- Valsartan Impurity 57 (CAS 1353844-77-5)
- Valsartan Impurity 118 (CAS CATO-C4X-1057118)
- Valsartan Impurity 119 (CAS CATO-C4X-1057119)
- Valsartan Impurity 150 (CAS CATO-C4X-1057150)
- Valsartan EP Impurity B (CAS 137863-20-8)
- Valsartan Impurity 104 (CAS CATO-C4X-1057104)
- Valsartan Impurity 28 (CAS 154709-17-8)
Recommended Standards
- Ganoderic acid K (CAS 117354-72-0)
- Ramelteon Impurity 22 (CAS 880152-63-6)
- N,N'-Diphenyl-N,N'-di(p-tolyl)benzidine (CAS 20441-06-9)
- Ramelteon Impurity 35 (CAS CATO-C4X-262235)
- Formoterol impurity 103 (CAS 1346746-81-3)
- Nintedanib Impurity 174 (CAS CATO-C4X-1814174)
- Quetiapine EP Impurity W (CAS 1800608-95-0)
- Norepinephrine Impurity 157 (CAS CATO-C4X-1514157)
- 1-Amino-4-(sec-butylamino)anthracene-9,10-dione (CAS 22791-66-8)
- 6-Chloro-8-(piperazin-1-yl)imidazo[1,2-a]pyrazine (CAS 77111-80-9)
- Perindopril Impurity 39 (CAS 79815-20-6)
- 10,11-Dihydro-10-hydroxy Carbamazepine-D4 (CAS 1020719-39-4)
- Empagliflozin Impurity 70 (CAS CATO-C4X-106570)
- Palmitoyl hexapeptide-6 (CAS 891498-01-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com