but-2-ynedial

Names

[ CAS No. ]:
21251-20-7

[ Name ]:
but-2-ynedial

[Synonym ]:
acetylenedicarbaldehyde
2-Butynedial
ACETYLENEDICARBOXALDEHYDE
Butynedial

Chemical & Physical Properties

[ Density]:
1.131 g/cm3

[ Boiling Point ]:
154.5ºC at 760 mmHg

[ Molecular Formula ]:
C4H2O2

[ Molecular Weight ]:
82.05750

[ Flash Point ]:
47.6ºC

[ Exact Mass ]:
82.00550

[ PSA ]:
34.14000

Safety Information

[ HS Code ]:
2912190090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 4,4-DIETHOXY-2-BUTYN-1-AL
  • 1,1,4,4-tetraethoxybut-2-yne

DownStream

Customs

[ HS Code ]: 2912190090

[ Summary ]:
2912190090 acyclic aldehydes without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Related Compounds

  • but-2-enedioic acid; N,N-diethyl-3-methyl-3,8-diazabicyclo[3.2.1]octane-8-carboxamide
  • but-2-enedioic acid,guanidine
  • but-2-ynylene bis(chloroacetate)
  • but-2-ynyl-cyclohexane
  • but-2-ene; chloro-dichloronio-platinum; chloroplatinum
  • but-2-ene; dichloroplatinum; methyl pyridine-4-carboxylate
  • 2-({1-[(3,5-Dimethyl-1,2-oxazol-4-yl)methyl]piperidin-4-yl}methoxy)pyridine-4-carbonitrile
  • 1-(3,4-Dichlorophenyl)-3-[1-(oxan-4-yl)azetidin-3-yl]urea
  • 3-{[1-(Butan-2-yl)piperidin-4-yl]methyl}-7-fluoro-2-methyl-3,4-dihydroquinazolin-4-one
  • N'-{[5-(1-methyl-1H-pyrazol-5-yl)furan-2-yl]methyl}ethanediamide
  • 1-(4-{[1-(2,4-Dimethyl-1,3-thiazole-5-carbonyl)piperidin-4-yl]oxy}but-2-yn-1-yl)-4-methylpiperazine
  • 4-(3-{1-methyl-7-oxo-1H,6H,7H-pyrrolo[2,3-c]pyridin-6-yl}propanoyl)-1lambda6-thiomorpholine-1,1-dione
  • 3-[(1-Cyclobutanecarbonylpiperidin-4-yl)methyl]-7-fluoro-2-methyl-3,4-dihydroquinazolin-4-one
  • 2-[(2,2-dimethyl-2,3-dihydro-1-benzofuran-7-yl)oxy]-N-{[1-(2,2,2-trifluoroethyl)piperidin-4-yl]methyl}acetamide
  • 2,6-difluoro-N-methyl-N-[1-(pyridin-2-yl)azetidin-3-yl]benzamide
  • 3-fluoro-4-methoxy-N-methyl-N-[1-(pyridin-2-yl)azetidin-3-yl]benzamide
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