GCMS analysis results for sample AD31637, Jan 28 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02JAN17\31637.D Vial: 4 • Acq On : 17 Jan 2002 12:42 pm Operator: Sample : 508 scan Inst : Instrumen Mise : January 17, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1.. .\SCAN508.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L * * * * it * * * ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * it * *

Peak Number 5 2-Butenal, 3-methyl- $$ Cro... Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 4.84 0.20 ug/L 66044 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Butenal, 3-methyl- $$ Crotonal... 84 C5H80 000107-86-8 72 2 2-Butenal, 3-methyl- (CAS) $$ 3-... 84 C5H80 000107-86-8 72 3 Furan, 2,3-dihydro-4-methyl- (CA... 84 C5H80 034314-83-5 59 4 3,4-Dihydropyran $$ 2H-Pyran, 3,... 84 C5H8O 000110-87-2 49 Abundance Scan 128 (4.835 mtn): 31637.D (-) m/z 84.00 100.00% 55 84

5000 41 59

38 44 50 , 69 4.40 4.60 4.80 5.00 5.20 ' miz—> 01 . 7 III,. .1.1,. 1. 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 i ■ ■ “ i ‘ ■ 11 • • ■' t' ■ ■ ■ । ■ ■ 111111 ■ 1111 m/z 55.10 82.84%

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

5000 39 AA 27 4.40 4.60 4.80 5.00 5.20 m/z 83.10 48.76% 51 I 44 — 69 Of '11 ■ “ ■ i1 111 “ '1111' plil l' * t * * ■ *j • ■ * ■ i • ** * । ■ ■ I ‘“ I ‘“ I niz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #3221:2-Butenal, 3-mathyl- (CAS) $$ 3-Methyl-2-butenal 84 55 i ' • 1 ■ i ■ ■ ' ' i ■ ■ ■ ■ i ■ ■ ■ ■ i 1 ' ' 4.40 4.60 4.80 5.00 5.20 5000 39 m/z 41.10 47.17% 27

44 51 । , 69 Of ' ■ i ■ • ■ ■ i' 1111'" 11'1 T+, 111 —MH poa miz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #3351: Furan, 2,3-dihydro-4-methyl- (CAS) $$ 4-METHYL-2.3-... NAA 1 1 ' I ' ■ 1 55 84 4.40 4.60 4.80 5.00 5.20 m/ z 39.10 45.98% 5000 41

69 0 ’ 1’111111 Tmmprf <*। >11 । ■ ■■■i1■' • । ■ ■ ■ ■ 11 ■।■ niz-> 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

31637.D SCAN508.M Tue Jan 22 08:36:59 2002 Page 7

NYC-WTC_000049939