GC/MS analysis results for sample AE11412, May 28 2002

NYC 9/11 Public Portal Document ULDL CL y ocaiun tOpOulIU RCDOL L

Data File : C:\MSDCHEM\1\DATA\051702\11411.D Vial: 20 Acq On : 18 May 2002 5:05 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.

5.98 16.44 ug/L 14800800 1,4-Dichlorobenzene-d4 9.94

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 78 3 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 45 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 Abundance Scan 493 (5.976 min): 11411 .D (-487) (-) m/ z 43.10 100.00% 43

5000 59 1 — I I I I ! 1 I [ I 1 101 5.60 5.80 6.00 6.20- 6.40

n/z-> 0 i 1 ' 1 ' i ■ ■ ■ ■ i 1 384 + 53 , 69 83 i 1 1 ■ ■ । ■ 1 1 1 । 1 ' 1 ■ । 1 1 r 1 । 1 1 1 1 । ' , I m/z 59.10 38.66% 10 20 30 40 50 60 70 80 90 100 110 Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 59 560 5.80 6.00 6.20 6.40 m/z 58.10 21.84% 15 101 OK 31 o 0 2,1, , 38,1 ............... 'i 53 , 83 I 1 1 ' ■ i 1 1 1 1 ■ r'' ■ ■ 1 i ' 1 1 1 i 1 1 1 1 i 1 . I m/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 5 60 5.80 6.00 6.20 6.40 5000 59 m/z 101.10 14.99%

22 — 101| O+ ....... ■ ■ । ■ ■ • ■ । 26,31 381 PTH++ ■ i > i ■ ■ ■ 1 । । । I • ■ ■ ■ i ■ ■ . ■ i 83 ■ ■ ■ ■ i 93 ■ ■ ■ 1 I ■ ■ . ■ । ■

n/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43 5.60 5.80 6.00 6.20 6.40 m/z 41.20 6.46% 5000 59 101 0 1 i 1 1 1 1 i 27,32 38,1 +48,53, 67 72 77 83 91 96, | I 1 ■ 1 1 i 1 ■ 1 r i 1 ■ 1 1 i 1 ' 1 1 i 1 1 1 ■ i ■ TIdn—u——RETTTTTmT m/z-> 10 20 30 40 50 60 70 80 90 100 110 5.60 5.80 6.00 6.20 6.40

11411 .D 050102 .M Tue May 21 15:55:03 2002 Page 6

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