Methohexital

Name: Methohexital
Brand: Vaqora Chemicals
SKU: VQ-043860

About Methohexital

Vaqora Chemicals supplies Methohexital, an API reference standard registered under CAS number 151-83-7. The compound has the formula C14H18N2O3, corresponding to a molecular weight of 262.3 g/mol. Its systematic (IUPAC) name is 5-hex-3-yn-2-yl-1-methyl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione. It is also known as Methohexitone or Methodrexitone.

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. It carries the GHS signal word “Danger” with 1 hazard statement. Review the Safety Data Sheet before use.

Laboratories use this the parent drug substance standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Methohexital is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Methohexital
Catalogue No.	VQ-043860
CAS Number	151-83-7
IUPAC name	5-hex-3-yn-2-yl-1-methyl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione
Molecular formula	C₁₄H₁₈N₂O₃
Molecular weight	262.3 g/mol
Exact mass	262.1317
Grade	Reference Standard
HSN code	38229090
InChIKey	NZXKDOXHBHYTKP-UHFFFAOYSA-N
SMILES	CCC#CC(C)C1(C(=O)NC(=O)N(C1=O)C)CC=C
PubChem CID	9034

Physical properties
Physical form	Solid
LogP (XLogP3)	2.3
H-bond donors / acceptors	1 / 3
TPSA	66.5 Å²
Synonyms	Methohexitone, Methodrexitone, Metohexital, Metoesital, 5-Allyl-5-(3-hexyn-2-yl)-1-methylbarbituric acid, (+-)-5-Allyl-1-methyl-5-(1-methyl-2-pentynyl)barbituric acid, 5-Allyl-1-methyl-5-(1-methyl-2-pentynyl)-2,4,6(1H,3H,5H)-pyrimidinetrione, 5-Allyl-1-methyl-5-(1-methyl-pent-2-ynyl)-pyrimidine-2,4,6-trione, 5-(hex-3-yn-2-yl)-1-methyl-5-(prop-2-en-1-yl)-1,3-diazinane-2,4,6-trione, alpha-DL-1-Methyl-5-allyl-5-(1'-methylpentyn-2-yl)barbituric acid, 2,4,6(1H,3H,5H)-Pyrimidinetrione, 1-methyl-5-(1-methyl-2-pentynyl)-5-(2-propenyl)-, 2,4,6(1H,3H,5H)-Pyrimidinetrione, 1-methyl-5-(1-methyl-2-pentynyl)-5-(2-propenyl)-, (+-)-

Safety & hazard information (GHS)

Toxic

Signal word: Danger

Hazard statements

H301Toxic if swallowed

Precautionary statements: P264, P270, P301 + P316, P321, P330, 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 Methohexital?

The CAS Registry Number of Methohexital is 151-83-7. It is also known as Methohexitone, Methodrexitone, Metohexital.

What is the molecular formula and molecular weight of Methohexital?

Methohexital has the molecular formula C14H18N2O3 and a molecular weight of 262.3 g/mol. Its IUPAC name is 5-hex-3-yn-2-yl-1-methyl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione.

Which grade and pack sizes of Methohexital can I order?

We supply Methohexital 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 Methohexital?

Yes. Every lot of Methohexital 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 Methohexital be shipped internationally?

Yes. Methohexital 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.