Levocarnitine Impurity 16 CAS 105-33-9
| CAS No. | 105-33-9 |
| Molecular Formula | C4H6ClNO |
| Molecular Weight | 119.55 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 Levocarnitine Impurity 16.
Levocarnitine Impurity 16 (CAS 105-33-9) is a certified pharmaceutical impurity reference standard with the molecular formula C4H6ClNO and a molecular weight of 119.55 g/mol.
Based on its molecular formula C4H6ClNO, Levocarnitine Impurity 16 contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 119.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Levocarnitine Impurity 16 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 | C4H6ClNO |
| Molecular Weight | 119.55 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Levocarnitine Standards
- Levocarnitine Impurity 13 (CAS 127913-44-4)
- Levocarnitine Impurity 18 (CAS 84367-31-7)
- Levocarnitine Impurity N24 (CAS 112083-63-3)
- Levocarnitine Impurity N16 (CAS 112083-64-4)
- Levocarnitine Impurity N2 (CAS 98137-59-8)
- Levocarnitine Impurity N8 (CAS 51499-71-9)
- Levocarnitine Impurity N23 (CAS 26329-66-8)
- Levocarnitine EP Impurity A (CAS 927-89-9)
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- 3-Hydroxy-1-(4-methoxyphenyl)-4-phenyl-2-azetidinone (CAS 194234-97-4)
- 5-(5-Methoxy-[3,3'-bipyridin]-4-yl)-3-(pyridin-2-yl)-1,2,4-oxadiazole (CAS 856570-74-6)
- N-(4-Nitro-[1,1-biphenyl]-2-yl)acetamide (CAS 71857-97-1)
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