Active ingredientLetrozoleCat. No. P-L038-001CAS 112809-51-5Family · Pharmaceutical analytical standards
Letrozole
A non-steroidal inhibitor of aromatase, the enzyme that makes oestrogens: patented in 1986 and approved in 1996, it is used against hormone-sensitive breast cancer in postmenopausal women. This family brings together the active ingredient, pharmacopoeial impurities, metabolites, labelled standards and other impurities.
Did you know?By lowering oestrogen it prompts the pituitary to release more follicle-stimulating hormone: for this reason, since the early 2000s, it has also been studied and used to induce ovulation in polycystic ovary syndrome.
Go to the active ingredient →Active ingredientLetrozoleCat. No. P-L038-001CAS 112809-51-5
Pharmacopoeial impurityLetrozole EP Impurity ACat. No. P-L038-002CAS 112809-52-6
Pharmacopoeial impurityLetrozole EP Impurity BCat. No. P-L038-003CAS 113402-31-6
MetaboliteCarbinol Metabolite of LetrozoleCat. No. P-L038-004CAS 134521-16-7
Isotopically labelledLetrozole-d4Cat. No. P-L038-005CAS 1133712-96-5
Impurity4,4-(Bromomethylene)dibenzonitrileCat. No. P-L038-006CAS 69545-39-7
Impurity4,4-(Carbonohydrazonoyl)dibenzonitrileCat. No. P-L038-007CAS 64568-34-9
Impurity4,4-CarbonyldibenzonitrileCat. No. P-L038-008CAS 32446-66-5
Impurity4,4-DibromobenzophenoneCat. No. P-L038-009CAS 3988-03-2
Impurity4,4-MethylenedibenzonitrileCat. No. P-L038-010CAS 10466-37-2
Impurity4-(1,2,4-Triazol-1-ylmethyl)benzonitrileCat. No. P-L038-011CAS 112809-25-3
Impurity4-(Bromomethyl)benzonitrileCat. No. P-L038-012CAS 17201-43-3
Impurity4-(Chloromethyl)benzonitrileCat. No. P-L038-013CAS 874-86-2
Impurity4-Descyano-4-bromo-letrozoleCat. No. P-L038-014CAS 143030-54-0
Impurity4-FluorobenzonitrileCat. No. P-L038-015CAS 1194-02-1
Impurity4-MethylbenzonitrileCat. No. P-L038-016CAS 104-85-8
ImpurityLetrozole DiacidCat. No. P-L038-017
ImpurityLetrozole DiamideCat. No. P-L038-018
ImpurityLetrozole Impurity 1Cat. No. P-L038-021
ImpurityLetrozole Mono-Amide ImpurityCat. No. P-L038-022CAS 2500927-47-7
ImpurityLetrozole N-OxideCat. No. P-L038-023No product matches your search.
EDQM standards 2
The official European Pharmacopoeia standards for this family.
Reference substanceLetrozole CRSEDQM code Y0000685Family LetrozoleImpurityLetrozole impurity A CRSEDQM code Y0002184Family LetrozoleNeed a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.