Oxygenated hnyav
Ib qho hnyav uas muaj oxygen atoms hauv cov molecule. Lawv tuaj yeem muab ntau yam solubility thiab volatility. Ntau cov resins tsis tuaj yeem yaj hauv cov kuab tshuaj hydrocarbon, tab sis tuaj yeem yaj hauv cov kuab tshuaj oxygenated. Cov khoom lag luam muaj xws li cawv, ketones, esters thiab cawv ethers.