GCMS analysis results, sample AE00703, January 2002

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Gas chromatography-mass spectrometry analysis of sample AE00703 conducted on 1/28/02, detecting unknown compounds and 2,4-DDD surrogate at 117 ug with 5.0 MDL.

NYC-WTC_000051842–000051859

Folder label: “GCMS X 1/10/02 A 1/16/02”

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NYC 9/11 Public Portal Document

Data File : C:\MSDCHEM\1\5973N\02JAN16\00703.D Vial: 3 Acq On : 16 Jan 2002 4:47 pm Operator: Sample : 508scan Inst : Instrumen Mise : January 16, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\MSDCHEM\l-..\SCAN508.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 2 2-Butenal, 3-methyl- $$ Cro... Concentration Rank 6

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

4.85 0.27 ug/L 92841 1,4-Dichlorobenzene-d4 9.71

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Butenal, 3-methyl- $$ Crotonal... 84 C5H80 000107-86-8 72 2 2-Butenal, 3-methyl- (CAS) $$ 3-... 84 C5H8O 000107-86-8 72 3 2-Butenal, 3-methyl- 84 C5H80 000107-86-8 64 4 2,3,4,5-Tetrahydropyridazine 84 C4H8N2 000694-06-4 38 Abundance Scan 129 (4.846 min): 00703.D (-) m/z 84.05 100.00% 84

55 5000 41 59 51 69 440 4.60 4.80 5.00 5.20

m/z-> .... MJ,'. Of ' ■ I'11111 ■1 r i' • ■ ■ i ■ 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 I 111 ‘ I ' ' ■ 11 ’ 1 '' i ' ■ 1 ■ i ' ■ ।11' ■ । ■11 m/z 55.10 54.79% Abundance

My. #3222:2-Butenal, 3-methyl- $$ Crotonaldehyde, 3-methyl- $... 84 55

39 - 5000 27 4.40 4.60 4.80 5.00 5.20 m/ z 83.0.0 39.47%

n/z-> ot ■' i r' 1 ‘ i ■ PPPPTPH ■ r 1 1 । rr 20 25 30 35 40 45 44 lL L 50 55 60 65 69

70 75 ... i ■ ■ ■' ।11 ■11 80 85 90 95 Abundance #3221: 2-Butenal, 3-methyl- (CAS) $$ 3-Methyl-2-butenal $$... 84 55 4.40 4.60 4.80 5.00 5.20 39 m/z 41.10 34.21% 5000 27

01 '' i'' ■ ■ t ‘ TTTTT ' I'1 ■ 11' 44 —L51 I PPP 69 -PPP m/z—> Abundance 20 25 30 35 40 45 50 55 60 65 70 75 80 85 #3224: 2-Butenal, 3-methyl- 84 90 95 AALAAA 4.40 4.60 4.80 5.00 5.20 m/z 59.10 32.24%

5000 55 41

50 66 69 0 ■ I'' ‘ 11 ' r' ' I' 1' ‘ I' 1 '' I ■ 1 ■ I.... 11 — ................. . +rri l " 111 ......... ............ m/z—> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 4.40 4.60 4.80 5.00 5.20

0703.D SCAN508.M Thu Jan 17 08:17:29 2002 Page 4

NYC-WTC_000051849

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