GC/MS analysis results for sample AE11416, May 28 2002

NYC 9/11 Public Portal Document X —pul L\SD

Data File : C:\MSDCHEM\1\DATA\051702\11415.D Vial : 24 Acq On : 18 May 2002 8:21 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 3 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 5.97 15.09 ug/L 10695700 1,4 -Dichlorob'enzene-d4 9.93 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 90 2 2-Pentanone, 4 -hydroxy-4 -methyl- 116 C6H1202 000123-42-2 72 3 2-Pentanone, 4 -hydroxy-4 -met hyl- 116 C6H12O2 000123-42-2 64 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 36 Abundance Scan 491 (5.964 min): 11415. D (-483) (-) m/z 43.10 100.00% 43

5000 59 ................ rs................... 101 ' 1 I 1 1 5.60 5.80 6.00 6.20 6.40 Of ................... 38,1 53 , 69 1/11/1’11’111 ICTu — I 1 1 1 ' i 83 ■ i ■' ■ । । । . | f j > ■ ■ . । ■ m/z 59.10 35.87% m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 1/111/+/41—,r11[111+11 59 560 5.80 6.00 6.20 6.40 m/ z 58.05 22.93% 15 101

/z-> Ot 29,31 . 38,4 +53+ t—1 1 1 —r-i—r-|—83.'. , , । ' > • ,I 1I 1—' 1 । r 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 • 1 | ■ i 1 > ■ - i i ■ i ■ - ■ ■ । ■ 560 5.80 6.00 6.20 6.40 5000 59 m/z 101.10 13.65%

„ 101

m/z-> 0 ......... 10 20 29,31 30 .38,140 111 50 ‘) IuaIan’u 60 70 80 83 93 | ' i ' ' ' 1 i 1 1 ■ ' i ' 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- ................... ........................ 43 5.60 5.80 6.00 6.20 6.40 m/z 41.10 6.24% 5000 59 101 0 ' i ' 1 ' 1 i 1 37 ,32 38, , 48 53,. ' 1 । 11 1 1 i 1 67 72 77 83 91 96, | 1i ' I ' ' 1-1 | । 1 1 1 [ ' । 1 1 | 1 1 । ’ | 1* > I j l r r . । r l ' 1 '"’ i 1 1 11 Inututi mfe-> 10 20 30 40 50 60 70 80 90 100 110 5.60 5.80 6.00 6.20 6.40

11415 .D 050102 .M Tue May 21 15:57:50 2002 Page 5

NYC-WTC_000025328