Sulfadoxine-d3

Name: Sulfadoxine-d3
Brand: Vaqora Chemicals
SKU: VQ-042298

About Sulfadoxine-d3

Vaqora Chemicals supplies Sulfadoxine-d3, a stable isotope labelled analogue related to Sulfadoxine registered under CAS number 1262770-70-6. With the molecular formula C12H14N4O4S, it has a molar mass of 313.35 g/mol. The IUPAC name is 4-amino-N-[5-methoxy-6-(trideuteriomethoxy)pyrimidin-4-yl]benzenesulfonamide. It is also known as Sulfadoxine (4-Trideuteromethoxy) or TMIJ-0279.

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.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

LC-MS/MS internal standard
Bioanalytical quantitation
Pharmacokinetic studies

Industries

Related to Sulfadoxine

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

Sulfadoxine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sulfadoxine-d3
Catalogue No.	VQ-042298
CAS Number	1262770-70-6
IUPAC name	4-amino-N-[5-methoxy-6-(trideuteriomethoxy)pyrimidin-4-yl]benzenesulfonamide
Molecular formula	C₁₂H₁₄N₄O₄S
Molecular weight	313.35 g/mol
Exact mass	313.0924
Grade	Reference Standard
HSN code	38229090
InChIKey	PJSFRIWCGOHTNF-BMSJAHLVSA-N
SMILES	[2H]C([2H])([2H])OC1=NC=NC(=C1OC)NS(=O)(=O)C2=CC=C(C=C2)N
PubChem CID	71312412

Physical properties
Physical form	Solid
LogP (XLogP3)	0.7
H-bond donors / acceptors	2 / 8
TPSA	125 Å²
Synonyms	Sulfadoxine (4-Trideuteromethoxy), TMIJ-0279, 4-amino-N-(5-methoxy-6-(methoxy-d3)pyrimidin-4-yl)benzenesulfonamide, Benzenesulfonamide, 4-amino-N-[5-methoxy-6-(methoxy-d3)-4-pyrimidinyl]-, 4-Amino-N-{5-methoxy-6-[(~2~H_3_)methyloxy]pyrimidin-4-yl}benzene-1-sulfonamide

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 Sulfadoxine-d3?

The CAS Registry Number of Sulfadoxine-d3 is 1262770-70-6. It is also known as Sulfadoxine (4-Trideuteromethoxy), TMIJ-0279, 4-amino-N-(5-methoxy-6-(methoxy-d3)pyrimidin-4-yl)benzenesulfonamide.

What is the molecular formula and molecular weight of Sulfadoxine-d3?

Sulfadoxine-d3 has the molecular formula C12H14N4O4S and a molecular weight of 313.35 g/mol. Its IUPAC name is 4-amino-N-[5-methoxy-6-(trideuteriomethoxy)pyrimidin-4-yl]benzenesulfonamide.

What is Sulfadoxine-d3 used for?

Sulfadoxine-d3 is supplied as a characterised reference material related to Sulfadoxine. 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 Sulfadoxine-d3 can I order?

We supply Sulfadoxine-d3 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 Sulfadoxine-d3?

Yes. Every lot of Sulfadoxine-d3 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 Sulfadoxine-d3 be shipped internationally?

Yes. We export Sulfadoxine-d3 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.