GC/MS analysis results for sample AE11415, May 28 2002

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Data File : C:\MSDCHEM\l\DATA\051702\11414.D Vial: 23 Acq On : 18 May 2002 7:32 am Operator: Mclean Sample : 5/15 eh Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 4 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.97 17.04 ug/L 12985400 1,4-Dichlorobenzene-d4 9.93 Hit# of 5 Tentative ID MW MolForm CAS#

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H12O2 000540-88-5 36 Abundance Scan 492 (5.970 min): 11414.D (-481) (-) m/ z 43.10 100.00% 43

5000 59 । । .... ,........ 101 5.60 5.80 6.00 6.20 6.40 Of .................... 38 i ' ■ i ■ ■ ' ' i 1 ' 1 1 i 1 1 1 53 69 77 83 | 1 I 1 tTP+ 1dd=n0/dd—/1———IB/0—n—T—t——IT m/ z 59.10 35.82% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 ............. V............. ■ ।1''' ।1'111 1 < 111' 111 560 5.80 6.00 6.20 6.40 59 m/z 58.10 22.66% — 101 0! ............... I I I I I ‘ 1 I I I 38,1 81/4 I 1’114 48 53, 67 72 77 83 I ' ■ ' ' i ■ ' ' ■ i ' ■ ' ■ 91 96, | i ■ ■ ' 1 i ' ' ' ' I ■ mfe-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43 5.60 5.80 6.00 6.20 6.40 5000 m/z 101.10 14.48% 59

15 101 or 31 20 0! "i"'1 +2f,,1, .38,1 53 , 83 . | . ........... 'I I ' ' 1 1 i 1 r ■ ■ i 1' ■ ' 1 i ' 1 1 1 i 1 1 1 1 1 1 m/z-> Abundance 10 20 30 40 50 60 70 #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 80 90 100 110

5.60 ... 1....... 5.80 6.00 6.20 6.40 m/ z 41.10 6.22% 5000 59

— 31 . 63 — 101 0 ■ t ■ ■ ■ ■ । ■ 26,1, . 38,) TTT T+ I ■ ■ ' 1 i ' 1 ' ■ i 83' 1 ' 1 i 93' 1 1 ' r। 1 1 1 । i । i/z-> 10 20 30 40 50 . 60 70 80 90 100 110 5.60 5.80 6.00 6.20 6.40

11414.D 050102.M Tue May 21 15:57:06 2002 Page 6

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