Sulfamethoxazole-13C6

Name: Sulfamethoxazole-13C6
Brand: Vaqora Chemicals
SKU: VQ-042306

About Sulfamethoxazole-13C6

Sulfamethoxazole-13C6 (CAS 1196157-90-0) is a stable isotope labelled analogue related to Sulfamethoxazole offered by Vaqora Chemicals. The compound has the formula C10H11N3O3S, corresponding to a molecular weight of 259.24 g/mol. Systematically, it is named 4-amino-N-(5-methyl-1,2-oxazol-3-yl)(1,2,3,4,5,6-13C6)cyclohexa-1,3,5-triene-1-sulfonamide. Common synonyms include Sulfamethoxazole-(phenyl-13C6) and TMIJ-0031.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

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. Typical end-use sectors are 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 Sulfamethoxazole

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

Sulfamethoxazole impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sulfamethoxazole-13C6
Catalogue No.	VQ-042306
CAS Number	1196157-90-0
IUPAC name	4-amino-N-(5-methyl-1,2-oxazol-3-yl)(1,2,3,4,5,6-13C6)cyclohexa-1,3,5-triene-1-sulfonamide
Molecular formula	C₁₀H₁₁N₃O₃S
Molecular weight	259.24 g/mol
Exact mass	259.0722
Grade	Reference Standard
HSN code	38229090
InChIKey	JLKIGFTWXXRPMT-AHBHZWPESA-N
SMILES	CC1=CC(=NO1)NS(=O)(=O)[13C]2=[13CH][13CH]=[13C]([13CH]=[13CH]2)N
PubChem CID	71312389

Physical properties
Physical form	Solid
LogP (XLogP3)	0.9
H-bond donors / acceptors	2 / 6
TPSA	107 Å²
Synonyms	Sulfamethoxazole-(phenyl-13C6), TMIJ-0031, Sulfamethoxazole 13C6 (phenyl 13C6), 4-Amino-N-(5-methyl-1,2-oxazol-3-yl)(~13~C_6_)benzene-1-sulfonamide, Benzene-1,2,3,4,5,6-13C6-sulfonamide, 4-amino-N-(5-methyl-3-isoxazolyl)-

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P272, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

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 Sulfamethoxazole-13C6?

The CAS Registry Number of Sulfamethoxazole-13C6 is 1196157-90-0. It is also known as Sulfamethoxazole-(phenyl-13C6), TMIJ-0031, Sulfamethoxazole 13C6 (phenyl 13C6).

What is the molecular formula and molecular weight of Sulfamethoxazole-13C6?

Sulfamethoxazole-13C6 has the molecular formula C10H11N3O3S and a molecular weight of 259.24 g/mol. Its IUPAC name is 4-amino-N-(5-methyl-1,2-oxazol-3-yl)(1,2,3,4,5,6-13C6)cyclohexa-1,3,5-triene-1-sulfonamide.

What is Sulfamethoxazole-13C6 used for?

Sulfamethoxazole-13C6 is supplied as a characterised reference material related to Sulfamethoxazole. 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 Sulfamethoxazole-13C6 can I order?

We supply Sulfamethoxazole-13C6 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 Sulfamethoxazole-13C6?

Yes. Every lot of Sulfamethoxazole-13C6 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 Sulfamethoxazole-13C6 be shipped internationally?

Yes. Sulfamethoxazole-13C6 is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.