GCMS sample AE12743 results, June 10 2002

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Gas chromatography-mass spectrometry analysis report for sample AE12743 detecting unknown compounds and surrogates.

NYC-WTC_000015410–000015438

Folder label: “GCMS X 6/3/02 A 6/6/02”

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NYC 9/11 Public Portal Document Library Search Compound Report

Data File C:\MSDCHEM\l\DATA\060602\12761.D Vial: 7 Acq On 6 Jun 2002 4:11 pm Operator: McLean Sample 6/3 eh Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 13 Butanoic acid, 2-methyl-, m.. Concentration Rank 8 R.T. EstConc Area Relative to ISTD R.T.

4.52 1.23 ug/L 815557 1, 4-dichlorob'enzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Butanoic acid, 2-methyl-, methyl... 116 C6H12O2 000868-57-5 14 2 Butanoic acid, 2-methyl-, methyl... 116 C6H12O2 000868-57-512 3 Butanoic acid, 2-methyl-, methyl... 116 C6H12O2 053955-81-0 10 4 Propanoic acid, methyl ester 88 C4H8O2 000554-12/1 9 Abundance Scan 245 (4.519 min): 12761 ,D (-242) (-) m/ z 57.10 100.00% 57 41 49 88 5000 101 -A--4 4.20 4.40 4.60 4.80 01, . । । । । > i । i 11 ..................................... i 1 !' 1 If! 1 1 1 1 > i । । ] i * । > i 1 m/z 49.10 63.47% miz-> 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #112664: Butanoic acid, 2-methyl-, methyl ester 57 88 41

5000 ■ ■ ■ i ■ ■ ■ ■ i ■ ■ ■ • i ■ ■ ■ ■ i ' ■ ■ ■ i 4.20 4.40 4.60 4.80 74 101 m/z 88.00 60.43%

mfz-> Abundance 0- 10 * 20 30 40I 1,4,51,1 IT' ■' ''i -‘I' ■ i ■ ■ + I' | 50 60 70 80 90 I 116 | ■ l11 > i । । i -«■» rp-r

#17382: Butanoic acid, 2-methyl-, methyl ester 57 100 110 120 MuM4/... 88 29 • ■ ■ i ■ ■ ■ ■ । ■ i ■ ■ ■ ■ । • ■ ■ ■ । 4.20 4.40 4.60 4.80 41 m/z 41.10 59.45% 5000

niz-> Abundance 0- mmj 10 20 [‘14I -4 1aasi] ——[,1 ■ 51 30 40 50 60 70 80 90 100 110 120 69

#17385: Butanoic acid, 2-methyl-, methyl ester, (.+/-.)- 101

"hwhayuoau. ‘ ' I ' ' ' ' I ‘ ' I ‘ ‘ I ‘ ‘ 1 57 88 4.20 4.40 4.60 4.80 m/z 47.05 52.20% 41 5000 29

15 74 101 . 0 1 ■ i ■ ' 1 1 i ' H m ' ■ l, ■ i ' ■ 1 11 T , i ■ ■ • ■ i I 1 ■ ■ ■ i ■ 116 ■ 1 ■ i ■ ■ ■ ■ i ■ ■ ■ 1 i ■ ■ • ' i ■ ■ ■ 1 i ■ ■ ' 1 i m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 4.20 4.40 4.60 4.80

12761.D 060302.M Mon Jun 10 10:25:20 2002 Page 16

NYC-WTC_000015430

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NYC-WTC_000015430Source: NYC Law Department, mirrored locally

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