GCMS analysis results for sample AE11381, May 22 2002

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Data File : C:\MSDCHEM\1\DATA\051702\11380.D Vial : 7 Acq On : 17 May 2002 5:40 pm Operator: Mclean Sample : 5/15 ad 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 3 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T. 5.97 16.88 ug/L 15257900 1,4-Dichlorobenzene-d4 9.94 Hit# of 5 Tentative ID MW MolForm CAS# Qu 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 6 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 50 4 Acetone_____ 58 C3H60 000067-64-1 32 Abundance Scan 493 (5.976 min): 11380. D (-483) (-) m/z 43.10 100.00% 43

5000 59 101 5 60 5.80 6.00 6.20 6.40 o+ .... ....... ........ , 53, 114′1+1 *+′′L’’ 1 ' (‘ Hr "IT 65 71 83 - i ■ ■ ■ ■ । , | । । । 119125 । । ■ ■ ■ ■ । । ■ i ■ ■ m/z 59.10 33.42% m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 ,.............. 59 560 5.80 6.00 6.20 6.40 m/z 58.10 21.81% 15 I 101

m/z-> On 10 25,31 37, ,, 1TTT 20 30 40 50 +53+ [..... 83.. j........ 60 70 80 90 100 110 120 130 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 1 f 1 1 ' 1 1 1 1 1 1 I ' 1 1 1 1 1 1 1 1 1 1 5.60 5.80 6.00 6.20 6.40 5000 59 m/z 101.10 13.34%|

........ . 37,1 93 83 — 93 101 | O+ 1 ' I 1 ' ' 1 I ' ' 1 1 I ’ ' ’ 1 ( 1 I I I | ! I'l I ' 1 ‘ 1 1 ' ' ' ' i ' 1 ' ' I ' ' ‘ 1 I ' ' 1 1 i 1 ' ' ' i ' 1 1 ' l ' 1 mfe-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- /, | T ! ! . !!■ I

43 560 5.80 6.00 6.20 6.40 m/z 41.05 5.49% 5000 59 — 101 0 ... 27, 371 I* ' ′ - ■ । 53 । I । । । । i‘i ' L*tfk 67 I ■ 1 ' 1 i ‘ 77 83 gi | ' ■ i 1 ' ' 1 i 1 ■ ■ 1 i 1 ■ ■ 1 i 1 1 1 ' i 1 1 1 11 ■ 1 TTnnm———mT m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 5.60 5.80 6.00 6.20 6.40

11380.D 050102.M Mon- May 20 15:46:44 2002 Page 6

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