Acetylenedicarboxylic Acid Monopotassium Salt

About Acetylenedicarboxylic Acid Monopotassium Salt

Acetylenedicarboxylic Acid Monopotassium Salt is a process intermediate or related compound of Allopurinol carrying the CAS registry number 928-04-1. Formula C4HKO4, molecular weight 152.15 g/mol. Systematically, it is named potassium 4-hydroxy-4-oxobut-2-ynoate. Alternative names: 2-Butynedioic acid, monopotassium salt and potassium 3-carboxyprop-2-ynoate.

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 “Danger”, so handle it with suitable PPE and consult the SDS.

It is a process intermediate or related compound in the synthesis of Allopurinol, useful for route development, impurity fate-and-purge studies and analytical method development. Buyers come mainly from 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

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Allopurinol

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

Allopurinol impurities

Specifications & identifiers

Chemical identifiers
Product name	Acetylenedicarboxylic Acid Monopotassium Salt
Catalogue No.	VQ-050356
CAS Number	928-04-1
IUPAC name	potassium 4-hydroxy-4-oxobut-2-ynoate
Molecular formula	C₄HKO₄
Molecular weight	152.15 g/mol
Exact mass	151.9512
InChIKey	KLLYWRUTRAFSJT-UHFFFAOYSA-M
SMILES	C(#CC(=O)[O-])C(=O)O.[K+]
PubChem CID	23677964

Physical properties
Physical form	Solid
H-bond donors / acceptors	1 / 4
TPSA	77.4 Å²
Synonyms	2-Butynedioic acid, monopotassium salt, potassium 3-carboxyprop-2-ynoate, Potassium 3-carboxypropiolate, Potassium Hydrogen Acetylenedicarboxylate, Monopotassium Acetylenedicarboxylate, Potassium hydrogen butynedioate, monopotassium butynedioate, but-2-ynedioic acid, potassium salt, Acetylenedicarboxylic, timtec-bb sbb008993, 2-Butynedioic acid monopotassium salt

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H310Fatal in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H331Toxic if inhaled
H335May cause respiratory irritation

Precautionary statements: P261, P262, P264, P264 + P265, P270, P271, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P316, P319, P321, P330, P332 + P317, P337 + P317, P361 + P364, 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 Acetylenedicarboxylic Acid Monopotassium Salt?

The CAS Registry Number of Acetylenedicarboxylic Acid Monopotassium Salt is 928-04-1. It is also known as 2-Butynedioic acid, monopotassium salt, potassium 3-carboxyprop-2-ynoate, Potassium 3-carboxypropiolate.

What is the molecular formula and molecular weight of Acetylenedicarboxylic Acid Monopotassium Salt?

Acetylenedicarboxylic Acid Monopotassium Salt has the molecular formula C4HKO4 and a molecular weight of 152.15 g/mol. Its IUPAC name is potassium 4-hydroxy-4-oxobut-2-ynoate.

What is Acetylenedicarboxylic Acid Monopotassium Salt used for?

Acetylenedicarboxylic Acid Monopotassium Salt is supplied as a characterised reference material related to Allopurinol. 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 Acetylenedicarboxylic Acid Monopotassium Salt can I order?

We supply Acetylenedicarboxylic Acid Monopotassium Salt, 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 Acetylenedicarboxylic Acid Monopotassium Salt?

Yes. Every lot of Acetylenedicarboxylic Acid Monopotassium Salt 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 Acetylenedicarboxylic Acid Monopotassium Salt be shipped internationally?

Yes. Acetylenedicarboxylic Acid Monopotassium Salt 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.