PHR1540

Letrozole

Pharmaceutical Secondary Standard; Certified Reference Material

• Sinônimo(s): Letrozole, 4,4′-(1H-1,2,4-Triazol-1-ylmethylene)bisbenzonitrile
• Fórmula empírica (Notação de Hill): C₁₇H₁₁N₅
• Número CAS: 112809-51-5
• Peso molecular: 285.30
• Número MDL: MFCD00866241
• Código UNSPSC: 41116107
• ID de substância PubChem: 329823451
• NACRES: NA.24

Propriedades

• grau: certified reference material; pharmaceutical secondary standard
• Nível de qualidade: 300
• Agency: traceable to Ph. Eur. Y0000685; traceable to USP 1356971
• família API: letrozole
• Certificado de análise (CofA): current certificate can be downloaded
• embalagem: pkg of 1 g
• técnica(s): HPLC: suitable; gas chromatography (GC): suitable
• aplicação(ões): pharmaceutical (small molecule)
• Formato: neat
• temperatura de armazenamento: 2-30°C
• cadeia de caracteres SMILES: N#CC(C=C1)=CC=C1C(N2C=NC=N2)C3=CC=C(C#N)C=C3
• InChI: 1S/C17H11N5/c18-9-13-1-5-15(6-2-13)17(22-12-20-11-21-22)16-7-3-14(10-19)4-8-16/h1-8,11-12,17H
• chave InChI: HPJKCIUCZWXJDR-UHFFFAOYSA-N
• Informações sobre genes: human ... CYP19A1(1588)

Descrição

Descrição geral

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Letrozole is used for the treatment of breast cancer in hormone-dependent postmenopausal patients. The drug works by blocking the synthesis of estrogen, a causative agent for cancer.

Aplicação

Letrozole may be used as a pharmaceutical reference standard for the determination of the analyte in biological/environmental samples and pharmaceutical formulations by various chromatography techniques.

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Ações bioquímicas/fisiológicas

Letrozole is a non-steroidal aromatase inhibitor.

Letrozole is a third generation nonsteroidal aromatase inhibitor. It is a competitive inhibitor of the aromatase enzyme system and thus inhibits the conversion of androgens to estrogens. Letrozole inhibits the aromatase enzyme by competitively binding to the heme of the cytochrome P450 subunit of the enzyme, resulting in a reduction of estrogen biosynthesis in all tissues.

Nota de análise

These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.

Outras notas

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Nota de rodapé

To see an example of a Certificate of Analysis for this material enter LRAA4186 in the slot below. This is an example certificate only and may not be the lot that you receive.

Produtos recomendados

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Informações de segurança

• Pictogramas: GHS08
• Palavra indicadora: Warning
• Frases de perigo: H361fd,H373
• Declarações de precaução: P202 - P260 - P280 - P308 + P313 - P405 - P501
• Classificações de perigo: Repr. 2 - STOT RE 2
• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable