GCMS analysis results for sample AE02713, March 5 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02FEB28\02713.D Vial: 3 Acq On : 28 Feb 2002 12:10 pm Operator: Sample : 508 scan Inst : Instrumen Mise : February 28, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\HP022102 .M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 2 ISOBUTYRALDEHYDE, DIMETHYLA... Concentration Rank 5 R.T. EstConc Area Relative to ISTD R.T. 3.92 0.07 ug/L 26319 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 83 2 Propane, 1,l-dimethoxy-2-methyl- 118 C6H1402 041632-89-7 83 3 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 83 4 1,1-dimethoxy butane, dimethyl b... 118 C6H14O2 000000-00-0 9 Abundance Scan 48 (3.916 min): 02713.D (-) m/z 75.00 100.00% 75

5000 87 --------- 71 3.60 3.80 4.00 4.20 n/z—> Oh 5 r... I 10 15 20253035 40 4550556065 70 75 80859095 “ i • “ ■ i ■ ■■ i “ “ i “ m/z 87.10 41.68% Abundance #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75

5000 87 3.60 3.80 4.00 4.20 15 55 m/z 55.10 27.11% 27 31 47 59 71 0- T T ’ 1’4 “ i “ -Hmmkn —mpt gus miz-> 5 10 15 202530354045505560 65 70 75 80859095 Abundance #17846: Propane, 1,1-dimethoxy-2-methyl- 75 3.60 3.80 4.00 JI 4.20 II

5000 rn/z 47.00 14.75% 87 55

iz-> OhTTTpTggt 31 „+H 42 47 59 71 I i I I । I i i i | ! i I > । T M i TTTp W—mun 5 10 15 20253035404550556065 70 75 80859095 W Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75 3.60 3.80 4.00 4.20 m/ Z 45.10 11.81% 5000 87 55 29 41 47 59 71 Ohmpmapg *Hpn —opmne +Tp-rn-p-r /z-> 5 10 15 2025303540455055 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

02713.D HP022102.M Fri Mar 01 10:06:52 2002 Page 4

NYC-WTC_000010874