4-Hydroxybut-2-ynoic acid

Modify Date: 2025-08-24 21:36:43

4-Hydroxybut-2-ynoic acid Structure
4-Hydroxybut-2-ynoic acid structure
Common Name 4-Hydroxybut-2-ynoic acid
CAS Number 7218-52-2 Molecular Weight 100.07300
Density 1.429 g/cm3 Boiling Point 319.2ºC at 760 mmHg
Molecular Formula C4H4O3 Melting Point 115-116 °C
MSDS N/A Flash Point 161ºC

 Names

Name 4-Hydroxybut-2-ynoic acid
Synonym More Synonyms

 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

~99%

4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Matsumura, Shuichi; Yoda, Nobuo; Endo, Masato; Yoshikawa, Sadao Chemistry Letters, 1990 , # 4 p. 647 - 648

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4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Johnson, C. David; Lane, Simon; Edwards, Philip N.; Taylor, Peter J. Journal of Organic Chemistry, 1988 , vol. 53, # 21 p. 5130 - 5139

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4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 21, p. 1706 - 1711 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , vol. 21, # 8 p. 1763 - 1769

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4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Canadian Journal of Chemistry, , vol. 37, p. 2092 Journal of the Chemical Society, , p. 3646,3649

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4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Bulletin de la Societe Chimique de France, , p. 816,819

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4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Journal of the Chemical Society, , p. 3646,3649

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4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, , vol. 146, p. 296

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4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Justus Liebigs Annalen der Chemie, , vol. 587, p. 124,129

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4-Hydroxybut-2-ynoic acid Structure

4-Hydroxybut-2-...

CAS#:7218-52-2

Literature: Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, , vol. 146, p. 296

 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%

 Synonyms

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
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