Chlorzoxazone-d3

Name: Chlorzoxazone-d3
Brand: Vaqora Chemicals
SKU: VQ-029769

About Chlorzoxazone-d3

Vaqora Chemicals supplies Chlorzoxazone-d3, a stable isotope labelled analogue related to Chlorzoxazone registered under CAS number 1185173-60-7. Formula C7H4ClNO2, molecular weight 172.58 g/mol. Systematically, it is named 5-chloro-4,6,7-trideuterio-3H-1,3-benzoxazol-2-one. Common synonyms include Chlorzoxazone-4,6,7 D3 and Chlorzoxazone-4,6,7-d3.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

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 Chlorzoxazone-d3 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 Chlorzoxazone

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

Chlorzoxazone impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Chlorzoxazone-d3
Catalogue No.	VQ-029769
CAS Number	1185173-60-7
IUPAC name	5-chloro-4,6,7-trideuterio-3H-1,3-benzoxazol-2-one
Molecular formula	C₇H₄ClNO₂
Molecular weight	172.58 g/mol
Exact mass	172.0119
Grade	Reference Standard
HSN code	38229090
InChIKey	TZFWDZFKRBELIQ-CBYSEHNBSA-N
SMILES	[2H]C1=C(C(=C(C2=C1OC(=O)N2)[2H])Cl)[2H]
PubChem CID	45038674

Physical properties
Physical form	Solid
LogP (XLogP3)	1.8
H-bond donors / acceptors	1 / 2
TPSA	38.3 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 Chlorzoxazone-d3?

The CAS Registry Number of Chlorzoxazone-d3 is 1185173-60-7. It is also known as Chlorzoxazone-4,6,7 D3, Chlorzoxazone-4,6,7-d3, TMID-0314.

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

Chlorzoxazone-d3 has the molecular formula C7H4ClNO2 and a molecular weight of 172.58 g/mol. Its IUPAC name is 5-chloro-4,6,7-trideuterio-3H-1,3-benzoxazol-2-one.

What is Chlorzoxazone-d3 used for?

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

We supply Chlorzoxazone-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 Chlorzoxazone-d3?

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

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