Products 142-45-0

CAS 142-45-0 appears in our catalog under these names: Acetylenedicarboxylic Acid, >95% (HPLC), Acetylenedicarboxylic acid, Acetylenedicarboxylic acid, 97% , Acetylenedicarboxylic acid, Acetylenedicarboxylic acid, 98%. Offered by: TRC, GLPBio, Thermo Scientific (Alfa Aesar), Biosynth, Thermo Scientific (Acros). Available pack sizes: 25g, 50g, 5g, 100g, 0,01kg, 0,005kg, 0,025kg, 0,05kg.

Acetylenedicarboxylic Acid, >95% (HPLC)
TRC
  • size: 25g, 50g, 5g
  • Variants: 3
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Acetylenedicarboxylic acid
GLPBio
  • size: 100g, 25g
  • Variants: 2
from 587.68
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Acetylenedicarboxylic acid, 97%
Thermo Scientific (Alfa Aesar)
  • size: 5g, 25g, 100g
  • Variants: 3
from 148.78
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Acetylenedicarboxylic acid
Biosynth
  • size: 0,01kg, 0,005kg, 0,025kg, 0,05kg
  • Variants: 5
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Acetylenedicarboxylic acid, 98%
Thermo Scientific (Acros)
  • size: 25g, 100g
  • Variants: 2
from 610.26
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Acetylenedicarboxylic Acid, >90.0%(HPLC)
TCI
  • size: 5g, 25g
  • Variants: 2
from 188.68
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Acetylenedicarboxylic Acid 98%
Ambeed
  • size: 5g, 25g, 100g, 500g
  • Variants: 4
from 120.06
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ACETYLENEDICARBOXYLIC ACID, 95%
Sigma-Aldrich, Fluorochem
  • size: 25G, 5G, 10g, 20g
  • Variants: 7
from 107.27
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Structural formula: {0} (CAS {1})

Butynedioic acid is an acetylenic compound that is acetylene in which the hydrogens are replaced by carboxy groups. It is a C4-dicarboxylic acid and an acetylenic compound. It is a conjugate acid of an acetylenedicarboxylate(1-).

Source: ChEBI

Identity
Molecular formulaC4H2O4
Molecular weight114.06 g/mol
IUPAC namebut-2-ynedioic acid
InChIKeyYTIVTFGABIZHHX-UHFFFAOYSA-N
SMILESC(#CC(=O)O)C(=O)O

Computed by PubChem (NCBI)

Synonyms: acetylenedicarboxylic acid, 2-butynedioic acid, but-2-ynedioic acid, Butynedioic acid, acetylenedicarboxylate, 2-Butyne-1,4-dioic acid, acetylene dicarboxylic acid, 2-ButynedioicAcid, Acetylenedicarboxylicacid, 2-Butyne-1,4-dioic Acid; Butynedioic Acid; NSC 1903; NSC 631597;
Isomers (same molecular formula)
3,4-dihydroxycyclobut-3-ene-1,2-dione C4H2O4