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4-Oxo-4H-1-benzopyran-2-carboxylic acid Structure

4-Oxo-4H-1-benzopyran-2-carboxylic acid

Chemical Properties

Melting point 260 °C (dec.)(lit.)
Boiling point 285.64°C (rough estimate)
Density  1.3366 (rough estimate)
refractive index  1.5280 (estimate)
storage temp.  Sealed in dry,Room Temperature
solubility  alcohol: soluble
pka 2.28±0.20(Predicted)
form  Powder
color  White to beige
Water Solubility  sparingly soluble
Merck  14,2237
BRN  146442
CAS DataBase Reference 4940-39-0(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII FY38S0790W

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3
RTECS  DJ2476000
Hazard Note  Irritant
HS Code  29329990
Toxicity LD50 intraperitoneal in mouse: 585mg/kg
NFPA 704:
0
2 0

4-Oxo-4H-1-benzopyran-2-carboxylic acid Price

4-Oxo-4H-1-benzopyran-2-carboxylic acid Chemical Properties,Usage,Production

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