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GCMS analysis results, sample AE02719, March 2002

Machine-extracted title · confidence 68%

Gas chromatography-mass spectrometry analysis of sample AE02719 performed March 5, 2002, reporting other unknown compounds and surrogate 2,4-DDD recovery data.

NYC-WTC_000010987–000011006

Folder label: “GCMS X 2/5/02 A 2/28/02

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NYC 9/11 Public Portal Document

Library Search Compound Report

'' Data File : C:\MSDCHEM\1\5973N\02FEB28\02719.D Vial: 4 Acq On : 28 Feb 2002 5:10 pm Operator: Sample : 508 scan Inst : Instrumen Mise : February 2 8, 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 Propane, 1,1-dimethoxy-2-me... Concentration Rank 5

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

3.93 0.08 ug/L 28523 1,4-Dichlorobenzene-d4 9.72

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Propane, 1,l-dimethoxy-2-methyl-... 118 C6H14O2 041632-89-7 74 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 74 3 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 64 4 Propane, 1,1-dimethoxy-2-methyl- 118 C6H14O2 041632-89-7 43 Abundance Scan 49 (3.927 min): 02719.D (-) m/z 75.00 100.00% 75

5000 87 47 55 ' ■ i ■ ■ ‘ 1 i ' ' 1 1 i ■ ■ ‘ ■ i ‘ ‘ i 43 71 3.60 3.80 4.00 4.20

/z—> 0- 20 25 30 35 40 45 50 55 60 65 70 75 80 85 -- -M4P 90 95 m/z 87.10 34.26% Abundance #17844: Propane, 1,1-dimethoxy-2-methyl-$$ Isobutylaldehy... 75

5000 ITI111111 87 3.60 3.80 4.00 4.20 47 55 m/z 55.00 26.75% 31 43. 59 71 011’11411111111111177711"-11" T-rp-r 11'1'11 ■ " ‘ I “ ' ‘ 11" ■ Ppur m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 1 ■ i “ ■ ■ i ■ ■ 90 95 Abundance #17847: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... 75 ■ ■ i ■ ■ • ■ i ■ * ■ 1 । ‘ । ■1 ■ ■ । 3.60 3.80 4.00 4.20 5000 m/z 47.10 22.60% 87 31 47 55 I 43 T-p-r 1 59 71 0'I l"111 rr 111111111111111111111 —pmmt m/z—> Abundance 20 25 30 35 40 45 50 556065 70 75 80859095 #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1,1-Dimethoxyi... 75 A3.60 3.80 4.00 4.20 m/z 43.10 9.14% 5000 87 55 29 41 47 A,...... .... O'— .... l....... । "5911 ■ ■111 >1'17111''' . ..... . 1' i ■ ■111 ■ ■ iz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

02719.D HP022102.M Fri Mar 01 10:07:34 2002 Page 4

NYC-WTC_000010994

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NYC-WTC_000010994Source: NYC Law Department, mirrored locally

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