GCMS analysis results for sample AE01637, March 2002

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GCMS laboratory results for sample AE01637 conducted on March 5, 2002, showing surrogate recovery and unknown compounds.

NYC-WTC_000010106–000010125

Folder label: “GCMS X 1/23/02 A 2/21/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02FEB21\01637.D Vial: 6 Acq On : 21 Feb 2002 7:22 pm Operator: Sample : 508 scan Inst : Instrumen Mise : February 21, 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 7

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

3.94 0.07 ug/L 32843 1,4-Dichlorobenzene-d4 9.72

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Propane, 1,l-dimethoxy-2-methyl- 118 C6H1402 041632-89-7 83 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 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 50 (3.938 min): 01637.D (-) m/z 75.00 100.00% 75

5000 87 55 - ‘I - 41 47 71 84 3.60 3.80 4.00 4.20 0 - ‘' i ■ “ ■ i ■' m/z 87.10 38.98% n/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17846: Propane, 1,1-dimethoxy-2-methyl- 75

5000' .................... ‘ I ‘ ‘ ’ I ’ » 1 ‘ I ■ ■ i ' ■ ■ ■ i ■ ' 87 3.60 3.80 4.00 4.20 55 m/z 55.00 26.35%

miz-> 5 ob ..... .... 31.,.. x“7.. THmmgt 59 71 fpom NwTgur 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17849: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75

3.60 3.80 4.00 4.20 5000 m/z 47.00 14.88% 87 55 41 47 °b5 10 15 20 25 30 mHH 29 59 71 —popt mTTTTTTTTTTT miz-> 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... TT-j-r-r-r-r-j-r-r l 1 ' ' ' I ‘ ' ‘ I 75 3.60 3.80 4.00 4.20 m/z 41.10 10.33% 5000 87 15 55 27 31 47 59 71 ob TTp-r • • |1 ■ ‘ • l ■ T*d]man*BBB8m—mmgu —— PTpmyt '■I'-111" ■ ■ i ' 1 • ■ i • ■ ■ 1 i ■ ■ 1 ■ i ' ■ ■ ■ i n/z—> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

01637.D HP022102.M Mon Feb 25 10:55:43 2002 Page 4

NYC-WTC_000010113

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NYC-WTC_000010113Source: NYC Law Department, mirrored locally

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GCMS analysis report for sample AE01636, March 2002 · Box DEP Box 14

NYC-WTC_000010086

GCMS laboratory results for sample AE01636 conducted on March 5, 2002, showing surrogate recovery and unknown compounds.

1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998