Letrozole Impurities

Letrozole Related Products

SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Letrozole , pharmacopeial and non-pharmacopeial Letrozole impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Letrozole impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Letrozole -related products are thoroughly characterized. Letrozole products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

Pharmaceutical Reference Standards

4-Fluorobenzonitrile

SZ CAT No:	: SZ-L003012
CAS No	: 1194-02-1
Mol.F.	: C7H4FN
Mol.Wt.	: 121.1
Inv. Status	: In Stock

Letrozole

SZ CAT No:	: SZ-L003000
CAS No	: 112809-51-5
Mol.F.	: C17H11N5
Mol.Wt.	: 285.3
Inv. Status	: In Stock

Letrozole EP Impurity A

SZ CAT No:	: SZ-L003001
CAS No	: 112809-52-6
Mol.F.	: C17H11N5
Mol.Wt.	: 285.3
Inv. Status	: In Stock

Letrozole EP Impurity B

SZ CAT No:	: SZ-L003002
CAS No	: 113402-31-6
Mol.F.	: C22H13N3
Mol.Wt.	: 319.4
Inv. Status	: In Stock

Letrozole Impurity 3

SZ CAT No:	: SZ-L003011
CAS No	: 112809-27-5
Mol.F.	: C10H8N4
Mol.Wt.	: 184.2
Inv. Status	: In Stock

Letrozole Impurity C

SZ CAT No:	: SZ-L003003
CAS No	: 112809-25-3
Mol.F.	: C10H8N4
Mol.Wt.	: 184.2
Inv. Status	: In Stock
Rel. CAS No	: 112809-26-4 (HClsalt) ; 897048-77-0 (Sulfate salt) ; 1360815-76-4 (Mesylate salt) ; 897048-80-5 (Besylate salt) ; 1360815-73-1 (Succinate salt) ; 897048-78-1 (Maleate salt)

3-Cyano Letrozole

SZ CAT No:	: SZ-L003019
CAS No	: NA
Mol.F.	: C17H11N5
Mol.Wt.	: 285.3
Inv. Status	: Custom Synthesis

Carbinol Metabolite Of Letrozole

SZ CAT No:	: SZ-L003004
CAS No	: 134521-16-7
Mol.F.	: C15H10N2O
Mol.Wt.	: 234.3
Inv. Status	: Custom Synthesis

Letrozole Diacid

SZ CAT No:	: SZ-L003005
CAS No	: 1644566-39-1
Mol.F.	: C17H13N3O4
Mol.Wt.	: 323.3
Inv. Status	: Custom Synthesis

Letrozole Diamide

SZ CAT No:	: SZ-L003006
CAS No	: 2170106-13-3
Mol.F.	: C17H17N5O2
Mol.Wt.	: 323.4
Inv. Status	: Custom Synthesis

Letrozole Impurity 1

SZ CAT No:	: SZ-L003008
CAS No	: 143030-54-0
Mol.F.	: C16H11BrN4
Mol.Wt.	: 339.2
Inv. Status	: Custom Synthesis

Letrozole Impurity 4

SZ CAT No:	: SZ-L003013
CAS No	: NA
Mol.F.	: C18H14N5 : Br
Mol.Wt.	: 300.3 : 79.9
Inv. Status	: Custom Synthesis

Letrozole Impurity 5

SZ CAT No:	: SZ-L003014
CAS No	: 124213-98-5
Mol.F.	: C2H6N4
Mol.Wt.	: 86.1
Inv. Status	: Custom Synthesis

Letrozole Impurity 6

SZ CAT No:	: SZ-L003015
CAS No	: 748812-17-1
Mol.F.	: C10H10N5 : Br
Mol.Wt.	: 200.2 : 79.9
Inv. Status	: Custom Synthesis
Rel. CAS No	: 794466-72-1 (free base)

Letrozole Impurity 7

SZ CAT No:	: SZ-L003016
CAS No	: NA
Mol.F.	: C17H15N5O
Mol.Wt.	: 305.3
Inv. Status	: Custom Synthesis

Letrozole Impurity 8

SZ CAT No:	: SZ-L003017
CAS No	: 874-86-2
Mol.F.	: C8H6ClN
Mol.Wt.	: 151.6
Inv. Status	: Custom Synthesis

Letrozole Monoacid Impurity

SZ CAT No:	: SZ-L003009
CAS No	: NA
Mol.F.	: C17H12N4O2
Mol.Wt.	: 304.3
Inv. Status	: Custom Synthesis

Letrozole Mono-Amide Impurity

SZ CAT No:	: SZ-L003018
CAS No	: 2500927-47-7
Mol.F.	: C17H13N5O
Mol.Wt.	: 303.3
Inv. Status	: Custom Synthesis

Letrozole N-Oxide

SZ CAT No:	: SZ-L003007
CAS No	: NA
Mol.F.	: C17H11N5O
Mol.Wt.	: 301.3
Inv. Status	: Custom Synthesis

4,4'-Dicyanobenzophenone

SZ CAT No:	: SZ-L003020
CAS No	: 32446-66-5
Mol.F.	: C15H8N2O
Mol.Wt.	: 232.2
Inv. Status	:

4,4'-Methylenedibenzonitrile

SZ CAT No:	: SZ-L003021
CAS No	: 10466-37-2
Mol.F.	: C15H10N2
Mol.Wt.	: 218.3
Inv. Status	:

Letrozole Impurity 9

SZ CAT No:	: SZ-L003022
CAS No	: 1353101-05-9
Mol.F.	: C10H8N4
Mol.Wt.	: 184.2
Inv. Status	:

Stable Isotopes And Metabolites

Letrozole D4

SZ CAT No:	: SZ-L003D01
CAS No	: 1133712-96-5
Mol.F.	: C17H7D4N5
Mol.Wt.	: 289.3
Inv. Status	: Custom Synthesis

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