Lysine Acetate EP Impurity E CAS 3184-13-2
| CAS No. | 3184-13-2 |
| Molecular Formula | C5H12N2O2 |
| Molecular Weight | N/A |
| 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 Lysine Acetate EP Impurity E.
Lysine Acetate EP Impurity E (CAS 3184-13-2) is a certified pharmaceutical impurity reference standard with the molecular formula C5H12N2O2HCl and a molecular weight of 168.62 g/mol.
Lysine Acetate EP Impurity E (C5H12N2O2HCl) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C5H12N2O2 HCl |
| Molecular Weight | 168.62 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 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) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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
- Bexarotene Impurity 1 (CAS CATO-C4X-29501)
- Irinotecan EP Impurity H DiHCl (CAS 1608617-71-5 (free base))
- Pantoprazole Impurity 56 (CAS 172282-50-7 (free bass))
- n-(Benzo[d][1,3]dioxol-5-ylmethyl)-3-(1h-imidazol-1-yl)propan-1-amine (CAS 163923-52-2)
- 4,4'-(5',5''-Bis(3-(pyridin-4-yl)phenyl)-[1,1':3',1'':3'',1'''-quaterphenyl]-3,3'''-diyl)dipyridine (CAS 1009033-96-8)
- Methyl 2-amino-3-oxohexahydro-1H-pyrrolizine-7a-carboxylate (CAS 375792-69-1)
- 4-(((Benzyloxy)carbonyl)amino)-3-bromobenzoic acid (CAS 1342082-37-4)
- 2-Cyclopropyl-8-methylquinoline-4-carboxylic acid (CAS 854859-99-7)
- Ethyl 4-((4-chlorobenzyl)oxy)-3-ethoxy-5-iodobenzoate (CAS 1706450-33-0)
- Neuropeptide S (rat) (CAS 412938-75-1)
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