Formoterol Impurity 67 CAS 871266-45-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 871266-45-4 |
| Molecular Formula | C15H12ClNO4 |
| Molecular Weight | 305.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Formoterol Impurity 67 (CAS 871266-45-4), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C15H12ClNO4. Molecular weight: 305.71 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C15H12ClNO4 |
| Molecular Weight | 305.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Formoterol Standards
- Formoterol impurity 132 (CAS CATO-C4X-1525132)
- Formoterol EP Impurity A (CAS 150513-24-9)
- Formoterol Impurity 47 (CAS 245759-66-4)
- Formoterol Impurity 50 (CAS 245759-62-0)
- Formoterol impurity 35 (CAS CATO-C4X-1525135)
- Formoterol Impurity 102 (CAS 1823724-70-4)
- Formoterol Impurity 56 (CAS 333796-54-6)
- Formoterol Impurity 42 (CAS CATO-C4X-152542)
Recommended Standards
- Tert-butyl 2-chloro-5,5-difluoro-5,8-dihydropyrido[3,4-d]pyrimidine-7(6H)-carboxylate (CAS 2306272-38-6)
- Chlorhexidine Impurity 31 (CAS CATO-C4X-225631)
- N-(5-acetyl-6-methyl-2-oxo-2H-pyran-3-yl)-4-chlorobenzamide (CAS 338404-93-6)
- Tryptophan EP Impurity I (CAS 5470-37-1)
- Menaquinone Impurity 50 (CAS CATO-C4X-207650)
- 3-(4-(9H-carbazol-9-yl)phenyl)-9-(3-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl)-9H-carbazole (CAS 1407183-70-3)
- (4-(Trifluoromethyl)phenyl)(2,4,6-trimethoxyphenyl)iodonium 4-methylbenzenesulfonate (CAS 1868173-15-2)
- (4-((4-Chloro-1H-pyrazol-1-yl)methyl)phenyl)methanamine (CAS 957490-92-5)
- (2R,3S)-2,5-Di-O-acetyl-1,3-di-O-benzoyl-5-methoxypentane (CAS 1219132-82-7)
- Hexapeptide-11 (CAS 161258-30-6)
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 13829788188 / jacky.chen@cato-chem.com