Formoterol Impurity 28 CAS 201677-59-0
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 201677-59-0 |
| Molecular Formula | C16H16BrNO3 |
| Molecular Weight | 350.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Formoterol Impurity 28 (CAS 201677-59-0) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C16H16BrNO3. Molecular weight: 350.21 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C16H16BrNO3 |
| Molecular Weight | 350.21 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2014 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Formoterol Standards
- Formoterol Impurity 59 (CAS 306966-56-3)
- Formoterol impurity 142 (CAS CATO-C4X-1525142)
- Formoterol Impurity 23 (CAS 43229-01-2)
- Formoterol Impurity 69 (CAS 100865-09-6)
- Formoterol-d6(Mixture of Diastereomers) (CAS 1020719-45-2)
- Formoterol impurity 126 (CAS CATO-C4X-1525126)
- Formoterol impurity 127 (CAS 188690-82-6)
- Formoterol Impurity 54 (CAS 193761-53-4)
Recommended Standards
- CAS 1361398-65-3 (CAS 1361398-65-3)
- N-(4-Bromophenyl)-5-(4-fluorophenyl)-1,3,4-thiadiazol-2-amine (CAS 827580-60-9)
- Crisaborole Impurity 61 (CAS CATO-C4X-202161)
- Lifitegrast Impurity 41 (CAS 851785-19-8)
- Flomoxef Impurity 62 (CAS CATO-C4X-138262)
- 2-[3-(aminomethyl)phenoxy]acetic acid hydrochloride (CAS 33321-39-0)
- 3-((Tert-butoxycarbonyl)(methyl)amino)-2,3-dihydro-1H-indene-5-carboxylic acid (CAS 1246508-41-7)
- 2,5-Bis(heptyloxy)terephthalaldehyde (CAS 206762-48-3)
- (5-Bromo-2-cyclopropylpyridin-3-yl)boronic acid (CAS 2225175-10-8)
- 302798-54-5 (Leu31,Pro34)-Neuropeptide Y (13-36) (human, rat) MFCD00672463 (CAS 302798-54-5)
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