Lysine Impurity 11 HCl CAS 39994-75-7
| CAS No. | 39994-75-7 |
| Molecular Formula | C5H11NO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lysine Impurity 11 HCl (C5H11NO3HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a process- or degradation-related impurity, Lysine Impurity 11 HCl (CAS 39994-75-7, C5H11NO3HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Lysine Impurity 11 HCl 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 | C5H11NO3 HCl |
| Molecular Weight | 169.60 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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
- Azacitidine Impurity 43 (CAS 13913-16-1)
- Dotinurad Impurity 35 (CAS CATO-C4X-249435)
- Betahistine impurity 33 (CAS 13585-92-7)
- 3-[(Dipropylamino)methyl]phenol hydrochloride (CAS 90287-73-3)
- 1,3-Isobenzofurandione, 3a,4,7,7a-tetrahydro-4-methyl-, polymer with 4,4'-(1-methylethylidene)bis[phenol] and 2-methyloxirane (CAS 73003-52-8)
- Perfluorophenyl 4-bromobenzenesulfonate (CAS 848649-38-7)
- Tribuloside (CAS 22153-44-2)
- (2R,3S,5S)-5-(4-Amino-7H-imidazo[4,5-d][1,2,3]triazin-7-yl)-2-(hydroxymethyl)tetrahydrofuran-3-ol (CAS 34536-05-5)
- N-(2-(4-(3-Chloro-4-(3-(trifluoromethyl)phenoxy)phenylamino)-5H-pyrrolo[3,2-d]pyrimidin-5-yl)ethyl)-3-hydroxy-3-methylbutanamide (CAS 871026-44-7)
- Des-Ile27-Tirzepatide (CAS CATO-CPTD788946)
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