4-Hydroxybut-2-ynoic acid

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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
  • N-[5-(methoxymethyl)-1,3,4-thiadiazol-2-yl]-2-[(4-oxo-6-propan-2-yl-4aH-thieno[2,3-d]pyrimidin-2-yl)methylsulfanyl]acetamide
  • 6-(3-Anilinopropyl)-2,4,7,8-tetramethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione
  • 2-(2,6-Diethylphenyl)-4-methoxy-1H-isoindole-1,3(2H)-dione
  • 4-[[7-Chloro-1,4-dihydro-2-(2-oxazolyl)-4-oxo-1-phenyl-3-quinolinyl]methyl]benzoic acid
  • 2-[(4-oxo-6-propan-2-yl-4aH-thieno[2,3-d]pyrimidin-2-yl)methylsulfanyl]-N-propan-2-ylacetamide
  • 5-Bromo-2-chloro-4-phenyl-pyridine
  • 6-[2-[4-[(2-Fluorophenyl)methyl]piperazin-1-yl]ethyl]-4,7,8-trimethyl-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione
  • N-(6-methylpyridin-2-yl)-2-[(4-oxo-6-propan-2-yl-4aH-thieno[2,3-d]pyrimidin-2-yl)methylsulfanyl]acetamide
  • 3-[(2,4-Dichlorophenoxy)methyl]azetidine
  • 2-[(4-oxo-6-propan-2-yl-4aH-thieno[2,3-d]pyrimidin-2-yl)methylsulfanyl]-N-pyridin-3-ylacetamide
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