GCMS analysis results for sample AE03075, March 5 2002

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Data File : C:\MSDCHEM\l\5973N\02FEB28\02716 .D Vial: 1 Acq On : 28 Feb 2002 2:40 pm Operator: Sample : 508 scan Inst : Instrumen Mise : February 28, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\HP022102.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 2 ISOBUTYRALDEHYDE, DIMETHYLA... Concentration Rank 7 R.T. EstConc Area Relative to ISTD R.T. 3.93 0.08 ug/L 28562 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 72 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 56 3 Propane, 1,1-dimethoxy-2-methyl-.. . 118 C6H14O2 041632-89-7 56 4 1,1-dimethoxy butane, dimethyl b... 118 C6H14O2 000000-00-0 9 Abundance Scan 49 (3.927 min): 02716.D (-) m/z 75.10 100.00% 75

5000 87 55 43 47 51 ’ 71 3.60 3.80 4.00 4.20 niz-> 0b -H I “ •' I “ “ I “ ‘ * 11 ‘J ‘ i ‘ ‘I 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 1 TTTTITTTTTT m/z 87.10 36.83% Abundance #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75

5000 -A— k ' I ' ■ ■ ■i■•■ •i‘■‘ ■i 87 3.60 3.80 4.00 4.20 15 55 m/z 55.10 25.45% 27 31 47 59 71 ob ’' l “ 1 * 111 -- Byaaaag mtz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17847: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75 -A-4— "T 3.60 3.80 4.00 4.20 5000 m/z 47.10 19.79% 87 31 47 55 43, 59 71 ob “ i “1' i ■' ■ ■ i ‘ • ■ ■ i111 ■ i111 ■ i ‘ “ i 111" , 111,11 ■■ 111111,111, । '■■■I ■■■■!' Hpnifrr niz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17844: Propane, 1,1-dimethoxy-2-methyl-$$Isobutylaldehy... ’tt 75 3.60 3.80 4.00 4.20 m/z 45.10 14.66% 5000 87 47 55

iz—> 0 a .....hr 31

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 43, 59 11111 ■ ‘I1*.«1 ■■ ■ ■ M 71 mH Hmt 1 ■ I'" ’ IT ..... Lal 3.60 3.80 4.00 4.20

32716.D HP022102.M Fri Mar 01 10:07:14 2002 Page 4

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