2,3,7,8-Tetrachloro-p-dioxin-13C12

Name: 2,3,7,8-Tetrachloro-p-dioxin-13C12
Brand: Vaqora Chemicals
SKU: VQ-035223

About 2,3,7,8-Tetrachloro-p-dioxin-13C12

2,3,7,8-Tetrachloro-p-dioxin-13C12 is a stable isotope labelled analogue related to Benzocaine carrying the CAS registry number 76523-40-5. The compound has the formula C12H4Cl4O2, corresponding to a molecular weight of 333.9 g/mol. Its systematic (IUPAC) name is 2,3,7,8-tetrachlorodibenzo-p-dioxin. Common synonyms include C-132,3,7,8-TCDD and 2,3,7,8-Tetrachlorodibenzo-p-dioxin-C13.

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. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

This isotope-labelled compound is used as an internal standard for LC-MS and LC-MS/MS quantitation of Benzocaine and related analytes in bioanalytical, pharmacokinetic and impurity studies. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 2,3,7,8-Tetrachloro-p-dioxin-13C12 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 Benzocaine

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

Benzocaine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	2,3,7,8-Tetrachloro-p-dioxin-13C12
Catalogue No.	VQ-035223
CAS Number	76523-40-5
IUPAC name	2,3,7,8-tetrachlorodibenzo-p-dioxin
Molecular formula	C₁₂H₄Cl₄O₂
Molecular weight	333.9 g/mol
Exact mass	333.9338
Grade	Reference Standard
HSN code	38229090
InChIKey	HGUFODBRKLSHSI-WCGVKTIYSA-N
SMILES	[13CH]1=[13C]2[13C](=[13CH][13C](=[13C]1Cl)Cl)O[13C]3=[13CH][13C](=[13C]([13CH]=[13C]3O2)Cl)Cl
PubChem CID	156712

Physical properties
Physical form	Solid
LogP (XLogP3)	6.4
H-bond donors / acceptors	0 / 2
TPSA	18.5 Å²
Synonyms	2,3,7,8-Tetrachlorodibenzo(b,e)(1,4)dioxin-13C12, Dibenzo(b,e)(1,4)dioxin-13C12, 2,3,7,8-tetrachloro-, C-132,3,7,8-TCDD, 2,3,7,8-Tetrachlorodibenzo-p-dioxin-C13, 2,3,7,8-Tetrachloro(~13~C_12_)oxanthrene, 2,3,7,8-Tetrachloro[13C12]dibenzo-p-dioxin

Safety & hazard information (GHS)

Harmful / irritant

Environmental hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P264, P270, P273, P301 + P317, P330, P391, 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 2,3,7,8-Tetrachloro-p-dioxin-13C12?

The CAS Registry Number of 2,3,7,8-Tetrachloro-p-dioxin-13C12 is 76523-40-5. It is also known as 2,3,7,8-Tetrachlorodibenzo(b,e)(1,4)dioxin-13C12, Dibenzo(b,e)(1,4)dioxin-13C12, 2,3,7,8-tetrachloro-, C-132,3,7,8-TCDD.

What is the molecular formula and molecular weight of 2,3,7,8-Tetrachloro-p-dioxin-13C12?

2,3,7,8-Tetrachloro-p-dioxin-13C12 has the molecular formula C12H4Cl4O2 and a molecular weight of 333.9 g/mol. Its IUPAC name is 2,3,7,8-tetrachlorodibenzo-p-dioxin.

What is 2,3,7,8-Tetrachloro-p-dioxin-13C12 used for?

2,3,7,8-Tetrachloro-p-dioxin-13C12 is supplied as a characterised reference material related to Benzocaine. 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 2,3,7,8-Tetrachloro-p-dioxin-13C12 can I order?

We supply 2,3,7,8-Tetrachloro-p-dioxin-13C12 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 2,3,7,8-Tetrachloro-p-dioxin-13C12?

Yes. Every lot of 2,3,7,8-Tetrachloro-p-dioxin-13C12 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 2,3,7,8-Tetrachloro-p-dioxin-13C12 be shipped internationally?

Yes. 2,3,7,8-Tetrachloro-p-dioxin-13C12 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.