4-Hydroxybut-2-ynoic acid

Suppliers

Names

[ CAS No. ]:
7218-52-2

[ Name ]:
4-Hydroxybut-2-ynoic acid

[Synonym ]:
4-hydroxy-2-butynoic acid
Hydroxy-but-2-insaeure
4-oxidanylbut-2-ynoic acid
hydroxy-but-2-ynoic acid
4-hydroxy-but-2-ynoic acid
Hydroxymethyl-propiolsaeure
Hydroxytetrolic acid

Chemical & Physical Properties

[ Density]:
1.429 g/cm3

[ Boiling Point ]:
319.2ºC at 760 mmHg

[ Melting Point ]:
115-116 °C

[ Molecular Formula ]:
C4H4O3

[ Molecular Weight ]:
100.07300

[ Flash Point ]:
161ºC

[ Exact Mass ]:
100.01600

[ PSA ]:
57.53000

[ Storage condition ]:
2-8°C

Safety Information

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
26-36/37/39

[ HS Code ]:
2918199090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 2-Butine-1,4-diol
  • Propargyl alcohol
  • 4-acetyloxybut-2-ynoic acid
  • 2-(propargyloxy)tetrahydropyran
  • ETHYLMAGNESIUM BROMIDE
  • Hydrogen peroxide
  • Carbon dioxide

DownStream

  • Pterin-6-carboxylic acid
  • 2(5H)-Furanone
  • Methyl 4-hydroxy-2-butynoate
  • α-bromo-γ-oxy-crotonic acid
  • 3-Bromo-2(5H)-furanone
  • 2-Butynoic acid, 4-hydroxy-, ethyl ester
  • 3-(hydroxymethyl)-7-methylocta-2,6-dienoic acid
  • 3-chloro-2H-furan-5-one

Customs

[ HS Code ]: 2918199090

[ Summary ]:
2918199090 other carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Related Compounds

  • 4-hydroxybut-2-ynoic acid methyl ester
  • 4-(2,6-dimethoxyphenyl)-4-hydroxybut-2-ynoic acid
  • 4-(4-bromophenyl)-4-hydroxybut-2-ynoic acid ethyl ester
  • 2-Butynoic acid, 4-hydroxy-, ethyl ester
  • (R)-4-hydroxy-4-phenyl-but-2-ynoic acid ethyl ester
  • 4-hydroxy-4-phenyl-but-2-ynoic acid ethyl ester
  • 5-(4-{[(3-Chloropyridin-4-yl)oxy]methyl}piperidine-1-carbonyl)-4-methoxy-1-methyl-1,2-dihydropyridin-2-one
  • 3-(4-{[(3-Chloropyridin-4-yl)oxy]methyl}piperidine-1-carbonyl)-2-(methylsulfanyl)pyridine
  • N-ethyl-6-methyl-2-(4-{2-methylpyrazolo[1,5-a]pyrazin-4-yl}piperazin-1-yl)pyrimidin-4-amine
  • 4-({1-[2-(4-Methyl-6-oxo-1,6-dihydropyrimidin-1-yl)acetyl]azetidin-3-yl}oxy)pyridine-2-carboxamide
  • N-[1-(6-fluoro-1,3-benzothiazol-2-yl)piperidin-3-yl]cyclopropanesulfonamide
  • 7-Methoxy-4-methyl-2-[2-(pyrrolidine-1-carbonyl)morpholin-4-yl]quinoline
  • 2-methyl-1-({1-[4-(propan-2-yloxy)benzoyl]azetidin-3-yl}methyl)-1H-imidazole
  • 3-(3-chlorophenyl)-1-{3-[(2-methyl-1H-imidazol-1-yl)methyl]azetidin-1-yl}propan-1-one
  • 1-benzyl-5-oxo-N-[4-oxo-2-(prop-2-yn-1-ylsulfanyl)-3,4-dihydroquinazolin-3-yl]pyrrolidine-3-carboxamide
  • 1-benzyl-5-oxo-N-[4-oxo-2-(prop-2-en-1-ylsulfanyl)-3,4-dihydroquinazolin-3-yl]pyrrolidine-3-carboxamide
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