Isopropyl methoxypyrazine

Structural formula
General
Surname	Isopropyl methoxypyrazine
other names	2-isopropyl-3-methoxypyrazine
Molecular formula	C 8 H 12 N 2 O
External identifiers / databases
CAS number 25773-40-4 EC number 247-256-1 ECHA InfoCard 100,042,946 PubChem 33166 DrugBank DB01760 Wikidata Q424957
properties
Molar mass	152.19 g mol −1
Physical state	liquid
density	0.996 g cm −3
boiling point	120-125 ° C (27 hPa)
Refractive index	1.494 (20 ° C)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319-335 P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Isopropylmethoxypyrazine (IPMP), also 2-isopropyl-3-methoxypyrazine, is a chemical compound from the group of derivatives of pyrazine (more precisely the methoxypyrazine ) that occurs naturally as a fragrance . For example, it gives the potato its earthy smell.

Asian ladybug

The Asian ladybird , which was introduced to Europe for pest control, also produces this substance. It can give wine an undesirable, bitter taste ( wine defects ).

Individual evidence

1. ↑ ^{a b c d e} data sheet 2-Isopropyl-3-methoxypyrazine from Sigma-Aldrich , accessed on May 11, 2011 ( PDF ).
2. ↑ Robert Ebermann, Ibrahim Elmadfa: Textbook food chemistry and nutrition . ISBN 978-3-211-48649-8 , p. 244.
3. ↑ Susanne Kögel: Risk assessment of Harmonia axyridis, the Asian ladybird, for German fruit and viticulture . ( Memento from October 17, 2013 in the Internet Archive ) Dissertation, Julius Kühn Institute, 2012.