Comenic Acid
Names
[ CAS No. ]:
499-78-5
[ Name ]:
Comenic Acid
[Synonym ]:
2-Carboxy-5-hydroxy-4-pyrone
5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid
Comenic acid
5-hydroxy-4-pyrone-2-carboxylic acid
5-hydroxy-2-carboxy-4-pyrone
Chemical & Physical Properties
[ Density]:
1.819g/cm3
[ Boiling Point ]:
420.7ºC at 760mmHg
[ Melting Point ]:
284-294ºC
[ Molecular Formula ]:
C6H4O5
[ Molecular Weight ]:
156.09300
[ Flash Point ]:
187.7ºC
[ Exact Mass ]:
156.00600
[ PSA ]:
87.74000
[ LogP ]:
0.04360
[ Vapour Pressure ]:
7.71E-09mmHg at 25°C
[ Index of Refraction ]:
1.66
Safety Information
[ Hazard Codes ]:
Xn: Harmful;
[ Risk Phrases ]:
22
[ HS Code ]:
2932999099
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ HS Code ]: 2932999099
[ Summary ]:
2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%