GCMS analysis results for sample AE01140, Feb 2002

NYC 9/11 Public Portal Document

Data File : C: \MSDCHEM\1\5973N\02FEB25\01140.D Vial: 6 Acq•On : 25 Feb 2002 3 :22 pm Operator: • ■ Sample : 508 scan Inst : Instrumen Mise : February 25, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\l-..\HP022102.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 4 ISOBUTYRALDEHYDE, DIMETHYLA... Concentration Rank 9

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

3.94 0.07 ug/L 26150 1,4-Dichlorobenzene-d4 9.72

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H1402 000000-00-0 83 2 Propane, 1,1-dimethoxy-2-methyl-... 118 C6H1402 041632-89-7 83 3 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 83 4 Propane, 1,1-dimethoxy-2-methyl- 118 C6H14O2 041632-89-7 74 Abundance Scan 50 (3.938 min): 01140.D (-) m/ z 75.00 100.00% 75

5000 87 55 47 —PT 41 51 71 3.60 3.80 4.00 4.20 -- Tl/Z-> 0 1. — 1/11* 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 '' i'11' i' ■ m/z 87.00 38.21% Abundance #17847: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... 75

5000 i ■ ■ 1 ' ............

87 3.60 3.804.00 4.20 31 47 55 m/z 55.00 29.75% 71 I 431 III" ■ 11"59i P " IT - 0111WIITIIITLTT । ■1111 m7t n/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17844: Propane, 1,1-dimethoxy-2-methyl-$$ Isobutylaldehy... 75 — ' i ' ■ 1 1 i 3.60 3.80 4.00 4.20 5000 m/ z 47.10 20.50% 87 47 55 31

m/z-> 0 1 . 43+4 - 71 1111 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 59 ] ''"I"..!. i ■1" i' ■

Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... W. > । 1 1 > 1 । > ■ <> । 75 3.60 330' 4.00 4.20 m/z 41.10 9.66%

5000 87 55 29 41 7 59 71 0—PPPPT " ■ 111111,1.. ।। 1HTOTPTTTT IITT m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

01140.D HP022102.M Tue Feb 26 08:30:17 2002 Page 6

NYC-WTC_000003512