Identification | More | [Name]
Coumalic acid | [CAS]
500-05-0 | [Synonyms]
2-OXO-2H-PYRAN-5-CARBOXYLIC ACID 2-PYRONE-5-CARBOXYLIC ACID ALPHA-PYRONE-5-CARBOXYLIC ACID COUMALIC ACID CUMALIC ACID CUMALINIC ACID TIMTEC-BB SBB004170 2-Oxo-1,2H-pyran-5-carboxylic acid 2-oxo-2h-pyran-5-carboxylicaci 2-Oxopyran-5-carboxylic acid 2-Pentenedioic acid, 4-(hydroxymethylene)-, delta-lactone alpha-Pyrone-3-carboxylic acid Coumalicacid,97% 6-oxo-6H-pyran-3-carboxylic acid 2-Oxo-2H-pyran-5-carboxylic acid, 2-Pyrone-5-carboxylic acid 6-Oxopyran-3-carboxylic acid a-Pyrone-5-carboxylic acid α-Pyrone-5-carboxylic acid | [EINECS(EC#)]
207-899-0 | [Molecular Formula]
C6H4O4 | [MDL Number]
MFCD00006644 | [Molecular Weight]
140.09 | [MOL File]
500-05-0.mol |
Safety Data | Back Directory | [Hazard Codes ]
Xi | [Safety Statements ]
S22:Do not breathe dust . S24/25:Avoid contact with skin and eyes . | [WGK Germany ]
3
| [TSCA ]
Yes | [HS Code ]
29322090 |
Hazard Information | Back Directory | [Chemical Properties]
pale yellow to pale brown powder | [Uses]
Coumalic acid undergoes thermal reaction with 1,3-butadiene to yield dimethyl tricycle[3.2.1.02,7]oct-3-ene-2,4-dicarboxylate. | [Definition]
ChEBI: Coumalic acid is a pyranone. | [General Description]
Decarboxylates to α-pyrone, a Diels-Alder diene. | [Purification Methods]
The acid crystallises from MeOH. The methyl ester has m 73-74o (from pet ether) and b 178-180o/60 mm. [Beilstein 18/8 V 120.] |
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