Letrozole-d4

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Letrozole-d₄

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Cat No: 26517

Biochemicals - Isotopically Labeled Standards

Letrozole-d4 is intended for use as an internal standard for the quantification of letrozole (Item No. 11568) by GC- or LC-MS. Letrozole is a potent, cell-permeable inhibitor of aromatase (IC50 = 2 nM).{23490} It inhibits proliferation of estrogen rec...

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Territorial Availability: Available through Bertin Technologies only in France

Synonyms:

4-[(4-cyanophenyl)-1H-1,2,4-triazol-1-ylmethyl]-benzonitrile-2,3,5,6-d4

Correlated keywords:

CGS 20267 CGS20267 Femara deuterated deuterium LCMS GCMS MCF7 MMP2 MMP9 MCF7Ca

Product Overview:
Letrozole-d4 is intended for use as an internal standard for the quantification of letrozole (Item No. 11568) by GC- or LC-MS. Letrozole is a potent, cell-permeable inhibitor of aromatase (IC50 = 2 nM).{23490} It inhibits proliferation of estrogen receptor-positive (ER+) MCF-7 cells when used alone at concentrations ranging from 0.1 to 100 nM and when used at a concentration of 10 nM in combination with testosterone or 4-androstene-3,17-dione.{46076} It also reduces matrix metalloproteinase-2 (MMP-2) and MMP-9 levels in MCF-7 cells when used at a concentration of 10 nM. Letrozole (10 µg per day) reduces tumor growth in an MCF-7Ca ovariectomized-mouse xenograft model.{46077} Formulations containing letrozole have been used in the treatment of postmenopausal breast cancer.{23489}

Size	500 µg
Shipping	dry ice
CAS Number	1133712-96-5
Molecular Formula	C₁₇H₇D₄N₅
SMILES	[2H]C(C([2H])=C(C#N)C([2H])=C1[2H])=C1C(N2C=NC=N2)C3=CC=C(C#N)C=C3
Molecular Weight	289,3
Formulation	A solid
Purity	≥99% deuterated forms (d1-d4)
Custom Code	3822.19
UNSPSC code	12352100

Technical File

MSDS

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Cayman Chemical's mission is to help make research possible by supplying scientists worldwide with the basic research tools necessary for advancing human and animal health. Our utmost commitment to healthcare researchers is to offer the highest quality products with an affordable pricing policy.

Our scientists are experts in the synthesis, purification, and characterization of biochemicals ranging from small drug-like heterocycles to complex biolipids, fatty acids, and many others. We are also highly skilled in all aspects of assay and antibody development, protein expression, crystallization, and structure determination.

Over the past thirty years, Cayman developed a deep knowledge base in lipid biochemistry, including research involving the arachidonic acid cascade, inositol phosphates, and cannabinoids. This knowledge enabled the production of reagents of exceptional quality for cancer, oxidative injury, epigenetics, neuroscience, inflammation, metabolism, and many additional lines of research.

Our organic and analytical chemists specialize in the rapid development of manufacturing processes and analytical methods to carry out clinical and commercial GMP-API production. Pre-clinical drug discovery efforts are currently underway in the areas of bone restoration and repair, muscular dystrophy, oncology, and inflammation. A separate group of Ph.D.-level scientists are dedicated to offering Hit-to-Lead Discovery and Profiling Services for epigenetic targets. Our knowledgeable chemists can be contracted to perform complete sample analysis for analytes measured by the majority of our assays. We also offer a wide range of analytical services using LC-MS/MS, HPLC, GC, and many other techniques.

Accreditations
ISO/IEC 17025:2005
ISO Guide 34:2009

Cayman is a leader in the field of emerging drugs of abuse, providing high-purity Schedule I-V Controlled Substances to federally-licensed laboratories and qualified academic research institutions for forensic analyses. We are certified by ACLASS Accreditation Services with dual accreditation to ISO/IEC 17025:2005 and ISO Guide 34:2009.