Home Categories Chemical Reagents 2-Butynoic acid
A1285912

2-Butynoic acid , 98% , 590-93-2

Synonym(s):
Tetrolic acid

CAS NO.:590-93-2

Empirical Formula: C4H4O2

Molecular Weight: 84.07

MDL number: MFCD00004363

EINECS: 209-695-7

Pack Size Price Stock Quantity
1G RMB60.80 In Stock
5G RMB135.20 In Stock
25G RMB470.40 In Stock
100G RMB1723.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 78-80 °C (lit.)
Boiling point: 200-203°C
Density  0,9641 g/cm3
refractive index  1.3918 (estimate)
Flash point: 200-203°C
storage temp.  Sealed in dry,2-8°C
solubility  water: soluble50mg/mL, clear to very slightly hazy, colorless to very faintly yellow
form  Powder
pka 2.62(at 25℃)
color  White to yellow
Water Solubility  Soluble in water. Slightly soluble in methanol and chloroform.
BRN  1740205
InChIKey LUEHNHVFDCZTGL-UHFFFAOYSA-N
CAS DataBase Reference 590-93-2(CAS DataBase Reference)
NIST Chemistry Reference 2-Butynoic acid(590-93-2)
EPA Substance Registry System 2-Butynoic acid (590-93-2)

Description and Uses

Synthon employed in a variety of reactions, including cycloacylation of phenols to flavones and chromones,1 and cyclization to γ-butyrolactones.2

Safety

Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
Hazard Codes  C
Risk Statements  34-20/21/22
Safety Statements  26-27-36/37/39-45
RIDADR  UN 3261 8/PG 2
WGK Germany  3
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  29161900

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