Salbutamol Impurity 111 CAS CATO-C4X-1176111
| CAS No. | CATO-C4X-1176111 |
| Molecular Formula | C16H18O4 |
| Molecular Weight | 274.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Salbutamol Impurity 111 (CAS CATO-C4X-1176111), a pharmacopoeial impurity reference standard (molecular formula C16H18O4, MW 274.31 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Salbutamol Impurity 111 (C16H18O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 274.31 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C16H18O4 |
| Molecular Weight | 274.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Salbutamol Standards
- Salbutamol Sulfate EP Impurity L (CAS 898542-81-9)
- Salbutamol Sulfate EP Impurity L (CAS CATO-C4X-117672)
- Salbutamol EP Impurity K Trifluoroacetic Acid (CAS 898542-80-8（free）)
- Salbutamol Impurity 53 (CAS 54208-72-9)
- Salbutamol Impurity 60 (CAS 238762-31-7)
- Salbutamol Impurity 61 (CAS 238762-34-0)
- Salbutamol impurity 166 (CAS 2919946-71-5)
- Salbutamol Impurity 202 (CAS CATO-C4X-1176202)
Recommended Standards
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- Rimegepant Impurity 66 (CAS CATO-C4X-248766)
- Brexpiprazole Impurity 156 (CAS CATO-C4X-1131156)
- Benzbromarone Impurity 23 (CAS CATO-C4X-225023)
- Agomelatine Impurity 10 (CAS 20176-04-9)
- 5-Oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 64123-68-8)
- 1,3-Dichlorobenzene (CAS 541-73-1)
- 5-Bromo-2-methyl-N-((tetrahydro-2H-pyran-4-yl)methyl)aniline (CAS 1280625-56-0)
- 1-(4-Cyclopropyl-1,3-thiazol-2-yl)ethan-1-ol (CAS 1343645-71-5)
- 4-[(3-Bromophenyl)methoxy]oxane (CAS 1247385-45-0)
- tert-butyl 3-(N’-hydroxycarbamimidoyl)-4-methylpiperazine-1-carboxylate (CAS 1807939-16-7)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com