A2577612
Coumalic Acid , >97.0%(GC)(T) , 500-05-0
Synonym(s):
2-Oxo-2H-pyran-5-carboxylic acid;2-Pyrone-5-carboxylic acid
CAS NO.：500-05-0
Empirical Formula: C6H4O4
Molecular Weight: 140.09
MDL number: MFCD00006644
EINECS: 207-899-0
| Pack Size | Price | Stock | Quantity |
| 1g | RMB50.40 | In Stock |
|
| 5G | RMB159.20 | In Stock |
|
| 25G | RMB543.20 | In Stock |
|
| 100g | RMB1615.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 203-205 °C (dec.) (lit.) |
| Boiling point: | 218 °C/120 mmHg (lit.) |
| Density | 1.2154 (rough estimate) |
| refractive index | 1.4434 (estimate) |
| Flash point: | 218°C/120mm |
| storage temp. | Sealed in dry,Room Temperature |
| form | powder to crystal |
| pka | 2.80±0.20(Predicted) |
| color | White to Light yellow to Light orange |
| Water Solubility | Very soluble in water. |
| Merck | 14,2557 |
| BRN | 119747 |
| InChI | 1S/C6H4O4/c7-5-2-1-4(3-10-5)6(8)9/h1-3H,(H,8,9) |
| InChIKey | ORGPJDKNYMVLFL-UHFFFAOYSA-N |
| SMILES | OC(=O)C1=COC(=O)C=C1 |
| LogP | 0.411 (est) |
| CAS DataBase Reference | 500-05-0(CAS DataBase Reference) |
| NIST Chemistry Reference | 2H-Pyran-5-carboxylic acid, 2-oxo-(500-05-0) |
| EPA Substance Registry System | 2H-Pyran-5-carboxylic acid, 2-oxo- (500-05-0) |
Description and 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.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319 |
| Precautionary statements | P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 |
| PPE | Eyeshields, Gloves, type N95 (US) |
| Hazard Codes | Xi |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| TSCA | TSCA listed |
| HS Code | 29322090 |
| Storage Class | 11 - Combustible Solids |
