Salbutamol Impurity 85 CAS 115787-52-5（free base）
| CAS No. | 115787-52-5（free base） |
| Molecular Formula | C13H17NO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Salbutamol Impurity 85 (CAS 115787-52-5（free base）) is a certified pharmaceutical impurity reference standard with the molecular formula C13H17NO3C2HF3O2 and a molecular weight of 349.31 g/mol.
Based on its molecular formula C13H17NO3C2HF3O2, Salbutamol Impurity 85 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 349.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Salbutamol Impurity 85 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 | C13H17NO3 C2HF3O2 |
| Molecular Weight | 349.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Salbutamol Standards
- Salbutamol Impurity 130 (CAS 115061-55-7)
- Salbutamol Impurity 134 (CAS 115787-50-3)
- Salbutamol Impurity 55 (CAS 115787-52-5)
- Salbutamol Impurity 87 (CAS 115787-53-6)
- Salbutamol-d3 (CAS 1219798-60-3)
- Salbutamol Impurity 75 (CAS 1221726-71-1)
- Salbutamol Impurity 146 (CAS 124658-76-0)
- Salbutamol EP Impurity H (CAS 132183-64-3)
Recommended Standards
- Clinofibrate Impurity 2 (CAS 30299-17-3)
- Zopiclone Impurity 2 (CAS 13606-92-3)
- Cefuroxime Impurity C95 (CAS 27920-90-7)
- (1R,4S,5R)-2-azabicyclo[2.2.1]Heptane-5-carbonitrile hydrochloride (CAS 2231666-17-2)
- 4,4,5,5-Tetramethyl-2-(4-(1-(trifluoromethyl)cyclopropyl)phenyl)-1,3,2-dioxaborolane (CAS 1431983-70-8)
- Sodium ((4-aminophenyl)sulfonyl)amide (CAS 10103-15-8)
- Fludarabine Phosphate Impurity 12 (CAS 25545-03-3)
- 2-Methyl-3-(o-tolyl)propan-1-ol (CAS 52086-52-9)
- (3-(3-(Methoxycarbonyl)pyrrolidin-1-yl)phenyl)boronic acid (CAS 1220419-93-1)
- Peptide Impurity (CAS CATO-CPTD788810)
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