GCMS analysis results for sample AE10811, May 2002

NYC 9/11 Public Portal Document Data File : C:\MSDCHEM\1\DATA\051402\10811.D Vial: 21 Acq On : 15 May 2002 6:39 am Operator: Mclean Sample : 5/7 kb 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 5 2-Pentanone, 4-hydroxy-4-me... Concentration Rank 1

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

5.97 14.35 ug/L 13501100 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 50 4 Acetic acid, 1,1-dimethylethyl e... 116 C6H1202 000540-88-5 25 Abundance Scan 492 (5.970 min): 10811.D (-478) (-) m/z 43.10 100.00% 43

5000 59 i । । i f i । r . y । । । [ i r r । _

101 560 5.80 6.00 6.20 6.40 37,1)40 +53+ 69 83 , | 117 125 m/z-> 01 )10........... 20 30 50 60 1 1 1 1 ' i 1 ■ 1 ' i 1'' ‘ 1 i 1 ' 111 ' 1 ' 1 1 1 1,1 I1 ' 1 ' 1 1 70 80 90 100 110 120 130 m/z 59.10 38.86%

Abundance #109755: 2-Pentanone, 4-hydroxy-4-methyl- 43

5000 1 i |_| 1 1 ।T1 r 1। i"' , ■ । ■ 1 । ■ 59 560 5.80 6.00 6.20 6.40 m/z 58.10 21.00% 15 31 101 01 ...... . 1 53, 83 | I 1 ' I'1111111 1 1' 11 1 I b IIH m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 ■ । ■ ■ ■ । । 1 ■ । ■ । ■ ’ ■ ■ । ■ ■ ■ 1 । ■ 560 5.80 6.00 6.20 6.40 5000 m/z 101.10 15.18% 59

Q_ 93 101 Of ........ 25,31 37, 83 । 1 1 I ' 1 ' ‘ i ' 1 1 1 i 1 1 ' 1 i 1 4+ l | I I I I | I r I I | } I I | > i i f | l-1 1 “I J I r i I | I i I । | i i m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #5851: 2-Pentanone, 4-hydroxy-4-methyl- '. 1 1 ' 43 5.60 5.80 6.00 6.20 6.40 m/z 41.10 6.50%

5000 59 — 101 0 27 , 37, +r ■ : 53' i r [ i t r r [ r-v-l-tg’u i 11’* i i 67 77 83 91 111 i i 111 , | Td"v II I 1 i I I 0/1/kgik 1 I f I k

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

10811.D 050102.M Thu May 16 14:13:09 2002 Page 9

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