123625-20-7 2-Methoxy-3-(1-methylpropyl)pyrazine 2-Methoxy-3-sec-butylpyrazine 2-sec-Butyl-3-methoxypyrazine 24168-70-5 3-sec-Butyl-2-methoxypyrazine EINECS 246-050-9 FEMA No. 3433 Pyrazine, 2-methoxy-3-(1-methylpropyl)- Pyrazine, 2-sec-butyl-3-methoxy-