Products 503-17-3

CAS 503-17-3 appears in our catalog under these names: 2-Butyne, 98% , 2-Butyne, 98%, 2-Butyne, >97.0%(GC), 2-butyne, 99%, 2-Butyne 99 %. Offered by: Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros), TCI, Sigma-Aldrich. Available pack sizes: 5g, 25g, 100g, 1g, 5ml.

2-Butyne, 98%
Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros)
  • size: 5g, 25g, 100g, 1g
  • Variants: 5
from 146.55
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2-Butyne, >97.0%(GC)
TCI
  • size: 5ml
  • Variants: 1
from 380.45
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2-butyne, 99%
Sigma-Aldrich
  • size: 25G
  • Variants: 1
from 1015.00
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2-Butyne 99 %
Sigma-Aldrich
  • size: 5G
  • Variants: 1
from 315.00
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Structural formula: {0} (CAS {1})

But-2-yne (CAS 503-17-3) is a chemical compound with the molecular formula C4H6 and a molecular weight of 54.09 g/mol. IUPAC name: but-2-yne. InChIKey: XNMQEEKYCVKGBD-UHFFFAOYSA-N.

Identity
Molecular formulaC4H6
Molecular weight54.09 g/mol
IUPAC namebut-2-yne
InChIKeyXNMQEEKYCVKGBD-UHFFFAOYSA-N
SMILESCC#CC

Computed by PubChem (NCBI)

Synonyms: Dimethylacetylene, 4-butyne, but-4-yne, But-2-yne, Crotonylene, dimethyl acetylene, 2-Butyne, 99%, Crotonylene [UN1144] [Flammable liquid], InChI=1/C4H6/c1-3-4-2/h1-2H, Crotonylene [UN1144] [Flammable liquid]
Isomers (same molecular formula)
buta-1,3-diene C4H6
1-methylcyclopropene C4H6
but-1-yne C4H6
1,1,2,3,4,4-hexaprotiobuta-1,3-diene C4H6