Erlotinib Impurity 5 CAS 328528-74-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 328528-74-1 |
| Molecular Formula | C20H22BrN3O4 |
| Molecular Weight | 448.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Erlotinib Impurity 5 (CAS 328528-74-1) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C20H22BrN3O4. Molecular weight: 448.31 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C20H22BrN3O4 |
| Molecular Weight | 448.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Erlotinib Standards
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Recommended Standards
- Ethyl 5-(bis(tert-butoxycarbonyl)amino)-4-bromo-1-methyl-1H-imidazole-2-carboxylate (CAS 2764671-66-9)
- (6-(4-(Naphthalen-1-yl)phenyl)pyren-1-yl)boronic acid (CAS 2031254-18-7)
- (4R,4'r)-2,2'-(4-Bromopyridine-2,6-diyl)bis(4-phenyl-4,5-dihydrooxazole) (CAS 618863-43-7)
- Calcipotriol Impurity 11 (CAS 112849-17-9)
- Ropivacaine EP Impurity E(R-Isomer) (CAS 1050482-18-2)
- DL-Boc-Phe(4-NH2)-OH (CAS 351208-73-6)
- Benzyl n-[(4,5-dihydro-1h-imidazol-2-yl)methyl]carbamate (CAS 70984-91-7)
- (4-Cyanobenzyl)triphenylphosphonium bromide (CAS 26104-68-7)
- 16993-42-3 Avenaciolide (CAS 16993-42-3)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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