MS/MS spectrum  
 
 
 SRM transitions  
Transition ID Precursor m/z Precursor charge Fragment m/z Relative intensity
LREYEAALNSK.2.y2.1 668.349 2 234.145 100
LREYEAALNSK.2.y1.1 668.349 2 147.113 51
LREYEAALNSK.2.y3.1 668.349 2 348.188 47
LREYEAALNSK.2.y4.1 668.349 2 461.272 18
LREYEAALNSK.2.y7.1 668.349 2 732.389 16
LREYEAALNSK.2.y9.1 668.349 2 1024.49 6
LREYEAALNSK.2.y5.1 668.349 2 532.309 6