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API Process Intermediates & Related Compounds

Acetylenedicarboxylic Acid

Available on request

Buy Acetylenedicarboxylic Acid (CAS 142-45-0) from Zemixal: C4H2O4, COA and SDS with every lot, worldwide shipping. Ships from India to 120+ countries.

Pack sizes
Acetylenedicarboxylic Acid chemical structure
CAS number142-45-0
FormulaC4H2O4
Molar mass114.06 g/mol
Physical formSolid
InChIKeyYTIVTFGABIZHHX-UHFFFAOYSA-N
IUPAC namebut-2-ynedioic acid

About Acetylenedicarboxylic Acid

Researchers and plant chemists source Acetylenedicarboxylic Acid from Zemixal for routine and specialised work. Key data: CAS 142-45-0, formula C4H2O4 and molar mass 114.06 g/mol. It is handled as a solid.

Typical applications

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Storage and safety notes

It carries the GHS signal word Danger (H301, H311, H314 and H315), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for N methylpyrrolidone

See every impurity, metabolite and related compound we list for this API.

N methylpyrrolidone standards

Typical uses

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Applications

Specifications and identifiers

Specifications of Acetylenedicarboxylic Acid
Product nameAcetylenedicarboxylic Acid
Catalogue numberZX-040398
CAS number142-45-0
IUPAC namebut-2-ynedioic acid
Molecular formulaC4H2O4
Molar mass114.06 g/mol
Exact mass113.9953
Physical formSolid
XLogP30.1
H-bond donors / acceptors2 / 4
Topological polar surface area74.6 Ų
InChIKeyYTIVTFGABIZHHX-UHFFFAOYSA-N
SMILESC(#CC(=O)O)C(=O)O
PubChem CID371
Synonyms2-butynedioic acid, Butynedioic acid, acetylenedicarboxylate, 2-Butyne-1,4-dioic acid, 2-ButynedioicAcid, Acetylendicarboxylate, acetylene dicarboxylic, AcetylendicarbonsA currencyure, Acetylenedicarboxylic acid (8CI)

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS06 Acute toxicity
Acute toxicity
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • H301Toxic if swallowed
  • H311Toxic in contact with skin
  • H314Causes severe skin burns and eye damage
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P260, P261, P262, P264, P264 + P265, P270, P271, P280, P301 + P316, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P319, P321, P330, P332 + P317, P337 + P317, P361 + P364, P362 + P364, P363

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Acetylenedicarboxylic Acid
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Acetylenedicarboxylic Acid

Which CAS number identifies Acetylenedicarboxylic Acid?
Acetylenedicarboxylic Acid is registered under CAS 142-45-0. You may also see it listed as 2-butynedioic acid, Butynedioic acid, acetylenedicarboxylate. Our catalogue number for this item is ZX-040398.
What are the formula and molar mass of Acetylenedicarboxylic Acid?
For Acetylenedicarboxylic Acid, its formula is C4H2O4 and its molar mass is 114.06 g/mol. The systematic (IUPAC) name is but-2-ynedioic acid. InChIKey YTIVTFGABIZHHX-UHFFFAOYSA-N lets you match it in any structure database.
How is Acetylenedicarboxylic Acid used in pharmaceutical QC?
Acetylenedicarboxylic Acid is a characterised reference material linked to N methylpyrrolidone. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Acetylenedicarboxylic Acid?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Acetylenedicarboxylic Acid?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Acetylenedicarboxylic Acid to my country?
Yes. Because Acetylenedicarboxylic Acid is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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