Dl-Lysine Acetylsalicylate EP Impurity H CAS CATO-C4X-22113
| CAS No. | CATO-C4X-22113 |
| Molecular Formula | C13H18N2O4 |
| Molecular Weight | 266.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Dl-Lysine Acetylsalicylate EP Impurity H (C13H18N2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 266.29 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Dl-Lysine Acetylsalicylate EP Impurity H (CAS CATO-C4X-22113) is a certified pharmaceutical impurity reference standard with the molecular formula C13H18N2O4 and a molecular weight of 266.29 g/mol.
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 | C13H18N2O4 |
| Molecular Weight | 266.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Dl Standards
- Lysine Impurity 25 (CAS 121893-23-0)
- Dl-Lysine Acetylsalicylate EP Impurity J (CAS CATO-C4X-22115)
- 82277-17-6 L-Lysine, N6-[(cyclopentyloxy)carbonyl]- (CAS 82277-17-6)
- Dl-Lysine Acetylsalicylate EP Impurity C (CAS 2924449-37-4)
- Lysine Impurity 39 (CAS 94613-75-9)
- Lysine Impurity 40 (CAS CATO-C4X-221140)
- Dl-Lysine Acetylsalicylate EP Impurity G (CAS CATO-C4X-221138)
- Lysine Impurity 7 (Ac-DL-Lys(Ac)-OH) (CAS 35436-74-9)
Recommended Standards
- Troxipide Impurity 28 (CAS CATO-C4X-214828)
- Benzbromarone EP Impurity C (CAS 1477-19-6)
- Troxipide Impurity 19 (CAS CATO-C4X-214819)
- Metaraminol Impurity 92 (CAS CATO-C4X-225292)
- N-Nitroso Baxdrostat Impurity 28 (CAS CATO-C4X-343428)
- Pyrazoloquinolone Impurity 7 (CAS CATO-C4X-23897)
- CAS CATO-C4X-34214 (CAS CATO-C4X-34214)
- (4,4-Dimethyl-4,5-dihydro-thiazol-2-yl)-p-tolyl-amine (CAS 565167-99-9)
- (1-(3-Chloroquinoxalin-2-yl)piperidin-3-yl)methanol (CAS 353257-83-7)
- 4,5-Dihydroindeno[1,7-bc]acridine (CAS 38710-01-9)
- 3-Chloro-6-methyl-4-nitropyridazine (CAS 771-78-8)
- Methyl 2,5-diiodobenzoate (CAS 14192-13-3)
- 5-Amino-2-phenyl-1,2-dihydro-3H-1,2,4-triazole-3-thione (CAS 17418-21-2)
- Mast Cell Degranulating Peptide HR-1 (CAS 80533-94-4)
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