Clenbuterol Impurity 14 CAS 37159-31-2
| CAS No. | 37159-31-2 |
| Molecular Formula | C12H19ClN2O |
| Molecular Weight | 242.75 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Clenbuterol Impurity 14 (C12H19ClN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a process- or degradation-related impurity, Clenbuterol Impurity 14 (CAS 37159-31-2, C12H19ClN2O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Clenbuterol Impurity 14 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 | C12H19ClN2O |
| Molecular Weight | 242.75 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Clenbuterol Standards
- Clenbuterol Impurity 14 (CAS 38339-09-2)
- Clenbuterol impurity 8 (CAS CATO-C4X-19938)
- Clenbuterol Impurity 16 (CAS 38339-10-5)
- Clenbuterol impurity 12 (CAS CATO-C4X-199312)
- Clenbuterol EP Impurity B (CAS 69708-36-7)
- (R)-(-)-Clenbuterol (CAS 50306-03-1)
- (S)-(+)-Clenbuterol (CAS 50499-60-0)
- Clenbuterol Impurity 15 (CAS 38339-14-9)
Recommended Standards
- Cilostazol Impurity 3 (CAS 73963-42-5)
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- 2-(Sec-butylthio)-1-(3-chlorophenyl)ethan-1-one (CAS 1154194-68-9)
- Posaconazole impurity 245 (CAS CATO-C4X-1208245)
- Upadacitinib Impurity 140 (CAS CATO-C4X-2405140)
- Furosemide Impurity 59 (CAS 518336-22-6)
- 3-Methyl-2-butyl isothiocyanate (CAS 201224-92-2)
- Ferrocenylhydroxymethylium (CAS 36569-30-9)
- tert-Butyl 3-oxo-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate (CAS 1160247-07-3)
- S-(3-hydroxypropyl) ethanethioate (CAS 115051-66-6)
- Levofloxacin Impurity 47 (CAS 110548-06-6)
- 2-(4-piperidinyl)-Imidazo[1,2-a]pyridine 301221-28-3 (CAS 301221-28-3)
- Tirzepatide Impurity 22 X TFA Salt (CAS CATO-C4X-324022)
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