GCMS chain of custody form, sample AE10236, May 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File C:\MSDCHEM\l\DATA\020509\10236.D Vial: 14 Acq On 9 May 2002 11:28 pm Operator: Nefliu Sample sample Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: rteint.e Quant Method : C:\MSDCHEM\1\METHODS\SCAN020507.M (RTE Integrator) Title : Method 508 GC/MS Scan Library : C:\DATABASE\nist98.1 Peak Number 1 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 6.15 13.49 ug/1 1218660 1,4-Dichlorobenzene-d4 11.38 Hit# of 5 Tentative ID MW MolForm CAS# Qual

C1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 83 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 50 3 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 4 2-1 opanol, 2-methyl- 74 C4H10O 000075-65-0 17 Abundance Scan 523 (6.152 min): 10236.D (-517) (-) m/ z 43.10 100.00% 43

59 5000

101 1 ' I ' ' ' ' I ' ' ‘ ' 1 ' 1 'iT™ 1 1 1 1 71 83 , |207 5 80 6.00 6.20 6.40

m/z—> .... 1, + 20 40 60 80 100 120 140 160 180 200 m/z 59.10 50.88% Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 IIIIIIT11 1 ' i ■ 1 ■71 ■ ■ ■ ■ । ■ 59 5.80 6.00 6.20 6.40 m/ z 58.10 20.22% 15 31 101 83 .| Jr i ,l pll+— mz-> 20 40 60 80 100 120 140 160 180 200 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 43 11 I ' ‘ 1 'T' TTt I 1 1 1 "TTTtI |" । 580 6.00 6.20 6.40 5000 59 m/z 101.10 16.09%

31 83 101 .!■>1 I ■ ।I b i i I1 ■ ■ i ■ ■ 1 n/z-> 20 40 60 80 100 120 140 160 180 200 Abundance #109590: Acetic acid, 1,1-dimethylethyl ester ■ • । ■ • • ■ । ■ i1 ■ CTnT1 rs । । 43 580 6.00 6.20 6.40 m/z 41.10 7.30% 5000 57

29 101 15 — i l I Trr . . 73 1 ! i • ■ ■ । ■ j ■ ■ ■ > । ■ । । । I । । * । I । > F"FTT’’ 1 । I 1 । --------- m/z—> 20 40 60 80 100 120 140 160 180 200 5.80 6.00 6.20 6.40

10236.D SCAN020507 .M Tue May 14 14:23:49 2002 Page 3

NYC-WTC_000024372