Methoxypyrazines

Chemical structure of isopropyl methoxy pyrazine (IPMP)

Methoxypyrazines are a class of chemical compounds that produce odors. The odors tend to be undesirable, as in the case of certain wines, or as in the case of the Asian Lady Beetle which produces isopropyl methoxy pyrazine (IPMP). They have also been identified as additives in cigarette manufacture. Detection thresholds are very low, typically near 2 parts per trillion (1 ng/L).

单词	Methoxypyrazine
释义	Methoxypyrazine 英语百科 Methoxypyrazines Methoxypyrazines are a class of chemical compounds that produce odors. The odors tend to be undesirable, as in the case of certain wines, or as in the case of the Asian Lady Beetle which produces isopropyl methoxy pyrazine (IPMP). They have also been identified as additives in cigarette manufacture. Detection thresholds are very low, typically near 2 parts per trillion (1 ng/L).
随便看	positron capture branching ratio的意思 positron channeling的意思 Positron Comcidence Detection的意思 positron computed axial tomography的意思 positron computed tomography的意思 positron deca的意思 Positron decay的意思 positron disintegration的意思 positron electron annihilation的意思 positron electron pair的意思 positron electron tandem ring accelerator的意思 Positron emission的意思 positron emission computed tomography的意思 positron emission computerized tomography的意思 positron emission computerized tomography, PECT的意思 positron emission computerized tomography, PET, PECT的意思 positron emission conditions的意思 positron emission CT的意思 positron emission emission computer的意思 positron emission spectroscopy的意思 Positron emission tomograph的意思 positron emission tomographies的意思 positron emission tomography的意思 positron emission tomography, PET的意思 positron emission tomography,PET的意思