GCMS sample analysis results, AE11800, June 3, 2002

NYC 9/11 Public Portal Document Library Search Compound Report . Data File : C:\MSDCHEM\l\DATA\052202\11800.D Vial: 7 Acq On : 22 May 2002 6:43 pm Operator: Mclean Sample : 5/21 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 11 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T.

5.94 10.31 ug/L 6998410 1,4-Dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 90 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 72 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 40 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 Abundance Scan 486 (5.935 min): 11800.D (-479) (-) m/ z 43.10 100.00% 4)3

5000 59

101 • ■ i ■ ■ ■ ' i ■ ■ ' ■ 12sa ‘ i ‘ 1 1 1 i 5.60 5.80 6.00 6.20 Of ......... 38 1 +53+ 1 1 I ' 1 1 1 I 1 1 1 ' I 1 1 ' 1 t ' I | 67 83 88 , | ■ i ■ ■ ■ ' i ■ 1 ■ ■ i 1 ■ • ' i 1 ■ ■ ' i ■ m/z 59.10 40.89% miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43

5000 1*1****1**1111444*1 59 5.60 5.80 6.00 6.20 m/z 58.05 20.58% 15 101

miz—> 0+ rr n-tr 10 20 . 26.31 30 . 39,1 40 +53+ 50 83 —1— ——TRTTTTTTT 60 70 80 I 90 100 110 Abundance #109756:2-Pentanone, 4-hydroxy-4-methyl- 4)3 ------ 5.60 5.80 6.00 6.20 5000 m/z 101.10 16.37% 59

.... . 381 93 83 . 93 101| 01 1 ' 1 1 1 1 ‘I ’ 1 । ' | ■ ' । r‘|‘l Ira i ■ ''i I ■ ■ ' ' i ■ 1 ■ • I ' ' • 1 1 1 1 1 ' 1 1 • 1 • t ' miz-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- rri11 1 ' 1 1 1 1 IIB।। 43 5.60 5.80 6.00 6.20 m/z 41.20 6.96%

5000 59 101 n/z—> 0: 110... 1137,32.38, 20 30 40 +48,53+ 67 72 77 83 91 96, | 50 60 70 80 1’44-1*4 * 11 ** 1*** 90 100 110 1 . (Tt ,T | I VI l | 5.60 5.80 6.00 TTT ITTTT 6.20

11800.D 052202.M Tue May 28 12:04:38 2002 Page 14

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