p-Benzoquinone-d4

Name: p-Benzoquinone-d4
Brand: Vaqora Chemicals
SKU: VQ-050178

About p-Benzoquinone-d4

p-Benzoquinone-d4 is a stable isotope labelled standard carrying the CAS registry number 2237-14-1. The compound has the formula C6H4O2, corresponding to a molecular weight of 112.12 g/mol. The IUPAC name is 2,3,5,6-tetradeuteriocyclohexa-2,5-diene-1,4-dione. It is also known as 2,5-Cyclohexadiene-1,4-dione-2,3,5,6-d4 or 1,4-Benzoquinone-d4.

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. It carries the GHS signal word “Danger” with 7 hazard statements. Review the Safety Data Sheet before use.

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.

Vaqora Chemicals supplies p-Benzoquinone-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

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	p-Benzoquinone-d4
Catalogue No.	VQ-050178
CAS Number	2237-14-1
IUPAC name	2,3,5,6-tetradeuteriocyclohexa-2,5-diene-1,4-dione
Molecular formula	C₆H₄O₂
Molecular weight	112.12 g/mol
Exact mass	112.0462
Grade	Reference Standard
HSN code	38229090
InChIKey	AZQWKYJCGOJGHM-RHQRLBAQSA-N
SMILES	[2H]C1=C(C(=O)C(=C(C1=O)[2H])[2H])[2H]
PubChem CID	12200666

Physical properties
Physical form	Solid
LogP (XLogP3)	0.2
H-bond donors / acceptors	0 / 2
TPSA	34.1 Å²
Synonyms	2,5-Cyclohexadiene-1,4-dione-2,3,5,6-d4, 1,4-Benzoquinone-d4, TMIJ-0434, 2,3,5,6-tetradeuterio-1,4-benzoquinone, (~2~H_4_)Cyclohexa-2,5-diene-1,4-dione

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Environmental hazard

Signal word: Danger

Hazard statements

H301+H331Toxic if swallowed or if inhaled
H301Toxic if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H331Toxic if inhaled
H335May cause respiratory irritation
H400Very toxic to aquatic life

Precautionary statements: P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P316, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P391, 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 p-Benzoquinone-d4?

The CAS Registry Number of p-Benzoquinone-d4 is 2237-14-1. It is also known as 2,5-Cyclohexadiene-1,4-dione-2,3,5,6-d4, 1,4-Benzoquinone-d4, TMIJ-0434.

What is the molecular formula and molecular weight of p-Benzoquinone-d4?

p-Benzoquinone-d4 has the molecular formula C6H4O2 and a molecular weight of 112.12 g/mol. Its IUPAC name is 2,3,5,6-tetradeuteriocyclohexa-2,5-diene-1,4-dione.

Which grade and pack sizes of p-Benzoquinone-d4 can I order?

We supply p-Benzoquinone-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 p-Benzoquinone-d4?

Yes. Every lot of p-Benzoquinone-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 p-Benzoquinone-d4 be shipped internationally?

Yes. p-Benzoquinone-d4 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.