Melatonin-d4

Name: Melatonin-d4
Brand: Vaqora Chemicals
SKU: VQ-031771

About Melatonin-d4

Listed under CAS 66521-38-8, Melatonin-d4 is a stable isotope labelled analogue related to Melatonin available from Vaqora Chemicals. Formula C13H16N2O2, molecular weight 236.3 g/mol. The IUPAC name is N-[1,1,2,2-tetradeuterio-2-(5-methoxy-1H-indol-3-yl)ethyl]acetamide. Alternative names: Melatonin D5.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Its mass shift relative to the unlabelled analyte makes it a dependable internal standard for LC-MS/MS assays, improving accuracy in bioanalysis, therapeutic drug monitoring and method validation. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Melatonin-d4 in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

LC-MS/MS internal standard
Bioanalytical quantitation
Pharmacokinetic studies

Industries

Related to Melatonin

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

Melatonin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Melatonin-d4
Catalogue No.	VQ-031771
CAS Number	66521-38-8
IUPAC name	N-[1,1,2,2-tetradeuterio-2-(5-methoxy-1H-indol-3-yl)ethyl]acetamide
Molecular formula	C₁₃H₁₆N₂O₂
Molecular weight	236.3 g/mol
Exact mass	236.1463
Grade	Reference Standard
HSN code	38229090
InChIKey	DRLFMBDRBRZALE-NZLXMSDQSA-N
SMILES	[2H]C([2H])(C1=CNC2=C1C=C(C=C2)OC)C([2H])([2H])NC(=O)C
PubChem CID	12358981

Physical properties
Physical form	Solid
LogP (XLogP3)	0.8
H-bond donors / acceptors	2 / 2
TPSA	54.1 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 Melatonin-d4?

The CAS Registry Number of Melatonin-d4 is 66521-38-8. It is also known as N-(2-(5-Methoxy-1H-indol-3-yl)(~2~H_4_)ethyl)acetamide, N-[2-(5-Methoxy-1H-indol-3-yl)(~2~H_4_)ethyl]acetamide, Melatonin D5.

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

Melatonin-d4 has the molecular formula C13H16N2O2 and a molecular weight of 236.3 g/mol. Its IUPAC name is N-[1,1,2,2-tetradeuterio-2-(5-methoxy-1H-indol-3-yl)ethyl]acetamide.

What is Melatonin-d4 used for?

Melatonin-d4 is supplied as a characterised reference material related to Melatonin. 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 Melatonin-d4 can I order?

We supply Melatonin-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 Melatonin-d4?

Yes. Every lot of Melatonin-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 Melatonin-d4 be shipped internationally?

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