What is the structure?

MASS EI 401 100 39 6 of Base Peak 50 697 527557 70 0 30 40 50 60 70 80 90 100 110 m/z MASS CI reagent gas methane 537 100- 717 M+1 (H) % of Base Peak 50 M+29 (CH) M+41 (CH) 697 99 + 0 30 40 50 60 70 80 90 100 110 m/z IR 100 95 90 % Transmittance my 85 80 -3294 -2951 2889 -2017 1423 7-13851 -1327 -852 4000 3000 1000 2000 Wavenumber (cm)