Salbutamol Impurity 89 CAS CATO-C4X-117689
| CAS No. | CATO-C4X-117689 |
| Molecular Formula | C9H12O4 |
| Molecular Weight | 184.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Salbutamol Impurity 89 (CAS CATO-C4X-117689) is a certified pharmaceutical impurity reference standard with the molecular formula C9H12O4 and a molecular weight of 184.19 g/mol.
Structurally, Salbutamol Impurity 89 (C9H12O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 184.19 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).
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.
Physical & Chemical Properties
| Molecular Formula | C9H12O4 |
| Molecular Weight | 184.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Salbutamol Standards
- Salbutamol Impurity 83 (CAS CATO-C4X-117683)
- Salbutamol Impurity 144 (CAS CATO-C4X-1176144)
- Salbutamol Impurity 145 (CAS 152880-92-7)
- Salbutamol Impurity 152 (CAS CATO-C4X-1176152)
- Salbutamol Related Compound 4 (CAS 30186-16-4)
- Salbutamol Impurity 52 (CAS 26945-93-7)
- Salbutamol Impurity 100 (CAS 16475-90-4)
- Salbutamol Impurity 107 (CAS 66654-06-6)
Recommended Standards
- Diallylmalonic Acid (CAS 4372-31-0)
- Ubidecarenone EP Impurity A (CAS 3066-90-8)
- Vonoprazan Fumarate Impurity 9 (CAS 14476-72-3)
- Propofol Impurity 37 (CAS 494-72-4)
- Apremilast Impurity 66 (CAS 587-48-4)
- Evocalcet Impurity 5 (CAS CATO-C4X-24855)
- Brivaracetam Impurity 68 (CAS CATO-C4X-200768)
- 4-(3-Chlorophenoxy)-5-methoxy-2-phenylpyrimidine (CAS 477872-56-3)
- (R)-N-(2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)-6-methylphenyl)methanesulfonamide (CAS 871360-40-6)
- Ethyl 4-(2-(1,3-dioxoisoindolin-2-yl)acetamido)benzoate (CAS 7508-58-9)
- 3-(5-(n,n-Dimethylsulfamoyl)pyridin-3-yl)acrylic acid (CAS 1308840-18-7)
- 6-Chloro-2-(4-fluorophenyl)-3-(piperazin-1-ylmethyl)imidazo[1,2-a]pyridine (CAS 727976-21-8)
- tert-Butyl (4-fluoro-3-formylpyridin-2-yl)carbamate (CAS 1446091-81-1)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
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