Lysine Impurity 37 CAS CATO-C4X-221137
| CAS No. | CATO-C4X-221137 |
| Molecular Formula | C12H26N4O3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Lysine Impurity 37 is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Lysine Impurity 37 (CAS CATO-C4X-221137, C12H26N4O3HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, Lysine Impurity 37 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 310.82 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Lysine Impurity 37 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 | C12H26N4O3 3*HCl |
| Molecular Weight | 310.82 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Lysine Standards
- L-Lysine Hydrochloride (CAS 10098-89-2)
- D-Lysine dihydrochloride (CAS 10303-72-7)
- Lysine Impurity 10 HCl (CAS 104584-11-4)
- L-Lysine-13C6,15N2 Hydrochloride (CAS 1200447-00-2)
- L-lysine-6-<SUP>13</SUP>C dihydrochloride (CAS 1217466-44-8)
- Lysine Impurity 25 (CAS 121893-23-0)
- Lysine Impurity 16 TFA Salt (CAS 13184-13-9(free base))
- L-Lysine-d4 Methyl Ester Dihydrochloride (CAS 1331896-92-4)
Recommended Standards
- Nintedanib impurity 181 (CAS CATO-C4X-1814181)
- Doxorubicin EP Impurity B (CAS 148218-14-8)
- Brivaracetam Impurity 145 (CAS 16423-59-9)
- 2-(2,4-Dichloro-5-(trifluoromethoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377607-20-8)
- [1,1'-biphenyl]-2,3-diol (CAS 1133-63-7)
- Z-Glu(OBzl)-OH.DCHA (CAS 62121-03-3)
- (2-Fluoro-3-((2-fluorobenzyl)carbamoyl)phenyl)boronic acid (CAS 1449144-85-7)
- Methyl 3-(2-fluorophenyl)-5-methylisoxazole-4-carboxylate (CAS 1960-93-6)
- 3,4-Dimethoxy-2-nitrobenzonitrile (CAS 1175636-14-2)
- Atrial Natriuretic Peptide (ANP)(1-28) Alpha (Human, Ovine, Canine) (CAS 91917-63-4)
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