Guaiacol Carbonate ，一种祛痰剂，通过胃神经传入延髓中心，然后再经外周进入呼吸道，通过胃反射起到祛痰作用。

Guaiacol Carbonate acts as an expectorant by virtue of a reflex from the stomach by way of the afferent gastric nerves to the medullary centres and thenperipherally again to the respiratory tract [1].

553-17-3

C15H14O5

274.272

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years