Letrozole-d4

Name: Letrozole-d4
Brand: Vaqora Chemicals
SKU: VQ-037966

About Letrozole-d4

Vaqora Chemicals supplies Letrozole-d4, a stable isotope labelled analogue related to Letrozole registered under CAS number 1133712-96-5. Formula C17H11N5, molecular weight 289.33 g/mol. Its systematic (IUPAC) name is 4-[(4-cyanophenyl)-(1,2,4-triazol-1-yl)methyl]-2,3,5,6-tetradeuteriobenzonitrile. It is also known as Letrozole-d4 (major) or Lelrozol.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This isotope-labelled compound is used as an internal standard for LC-MS and LC-MS/MS quantitation of Letrozole and related analytes in bioanalytical, pharmacokinetic and impurity studies. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Letrozole-d4 is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

LC-MS/MS internal standard
Bioanalytical quantitation
Pharmacokinetic studies

Industries

Related to Letrozole

View every impurity, metabolite and intermediate we list for Letrozole.

Letrozole impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Letrozole-d4
Catalogue No.	VQ-037966
CAS Number	1133712-96-5
IUPAC name	4-[(4-cyanophenyl)-(1,2,4-triazol-1-yl)methyl]-2,3,5,6-tetradeuteriobenzonitrile
Molecular formula	C₁₇H₁₁N₅
Molecular weight	289.33 g/mol
Exact mass	289.1266
Grade	Reference Standard
HSN code	38229090
InChIKey	HPJKCIUCZWXJDR-NMRLXUNGSA-N
SMILES	[2H]C1=C(C(=C(C(=C1C#N)[2H])[2H])C(C2=CC=C(C=C2)C#N)N3C=NC=N3)[2H]
PubChem CID	25235893

Physical properties
Physical form	Solid
LogP (XLogP3)	2.7
H-bond donors / acceptors	0 / 4
TPSA	78.3 Å²

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Letrozole-d4?

The CAS Registry Number of Letrozole-d4 is 1133712-96-5. It is also known as Letrozole-d4 (major), Lelrozol, 4-[(4-cyanophenyl)-(1,2,4-triazol-1-yl)methyl]-2,3,5,6-tetradeuterio-benzonitrile.

What is the molecular formula and molecular weight of Letrozole-d4?

Letrozole-d4 has the molecular formula C17H11N5 and a molecular weight of 289.33 g/mol. Its IUPAC name is 4-[(4-cyanophenyl)-(1,2,4-triazol-1-yl)methyl]-2,3,5,6-tetradeuteriobenzonitrile.

What is Letrozole-d4 used for?

Letrozole-d4 is supplied as a characterised reference material related to Letrozole. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Letrozole-d4 can I order?

We supply Letrozole-d4 in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Letrozole-d4?

Yes. Every lot of Letrozole-d4 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Letrozole-d4 be shipped internationally?

Yes. We export Letrozole-d4 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.