Meconic acid, also known as acidum meconicum and poppy acid, is a chemical substance found in certain plants of the Papaveraceae family (poppy) such as Papaver somniferum (opium poppy) and Papaver bracteatum. Meconic acid constitutes about 5% of opium and can be used as an analytical marker for the presence of opium. Meconic acid has erroneously been described as a mild narcotic, but it has little or no physiological activity, and is not used medicinally. Meconic acid forms salts with alkaloids and metals. These salts as well as meconic acid esters are called meconates. Meconic acid was first isolated by Friedrich Sertürner in 1805.

CAS：497-59-6
中文别名：
英文别名：Poppy acid;Meconic acid;3-HYDROXY-4-OXO-4H-PYRAN-2,6-DICARBOXYLIC ACID;4H-Pyran-2,6-dicarboxylic acid, 3-hydroxy-4-oxo-;3-Hydroxy-4-oxo-1,4-pyran-2,6-dicarboxylic acid;2,6-Dicarboxy-3-hydroxy-<4>pyron;
分子式：C7H4O7
分子量：200.102
精确质量：199.996
Psa：125.04
Logp：-0.2582

EINECS号：207-848-2

密度：2.043g/cm3
沸点：353.8ºC at 760mmHg
闪点：149.8ºC
折射率：1.717
蒸汽压：0mmHg at 25°C