Letrozole CAS 112809-51-5
Purity >95%In StockPharmaceutical Standards
| CAS No. | 112809-51-5 |
| Molecular Formula | C17H11N5 |
| Molecular Weight | 285.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Letrozole (CAS 112809-51-5) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C17H11N5. Molecular weight: 285.30 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C17H11N5 |
| Molecular Weight | 285.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 5 |
Related Letrozole Standards
- Letrozole EP Impurity A (CAS 112809-52-6)
- Letrozole Impurity 18 (CAS CATO-C4X-182918)
- Letrozole Impurity 19 (CAS CATO-C4X-182919)
- Letrozole-d4 (CAS 1133712-96-5)
- Letrozole Impurity 35 (CAS CATO-C4X-182935)
- Letrozole Impurity 11 (CAS CATO-C4X-182911)
- Letrozole Impurity 36 (CAS CATO-C4X-182936)
- Letrozole impurity 40 (CAS CATO-C4X-182940)
Recommended Standards
- HC Blue 2 (CAS 33229-34-4)
- H-Gly-Pro-Hyp-OH (CAS 2239-67-0)
- Finerenone Impurity 86 (CAS CATO-C4X-288086)
- 2-(sec-Butoxy)quinoline-4-carbonitrile (CAS 855165-26-3)
- 2-(2,4,6-Trimethylbenzyl)isoindoline-1,3-dione (CAS 64489-90-3)
- 1-Bromo-5-(trifluoromethyl)-2,3-dihydro-1H-indene (CAS 2426562-80-1)
- Iridium, tris[3,5-difluoro-2-(2-pyridinyl-κN)phenyl-κC]-, (OC-6-22)- (CAS 391665-84-2)
- ethyl 4-(2-nitrophenyl)-1H-pyrrole-3-carboxylate (CAS 503272-01-3)
- 2-(9-(5-Fluoropyridin-2-yl)-2,6-dioxaspiro[4.5]decan-9-yl)acetonitrile (CAS 2305782-76-5)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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