GCMS analysis results for sample AE00248, Jan 2002

NYC 9/11 Public Portal Document Library Search Compound Report

Data File : C: \MSDCHEM\1\5973N\02 JAN24\00248 . D Vial: 4 ' Acq On : 24 Jan 2002 5:27 pm Operator: Sample : 508scan Inst : Instrumen Mise : January 24, 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 ********************************************************************* Peak Number 2 ISOBUTYRALDEHYDE, DIMETHYLA... Concentration Rank 11 R.T. EstConc Area Relative to ISTD R.T.

3.92 0.07 ug/L 32465 1,4-Dichlorobenzene-d4 9.72

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 56 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 56 3 Propane, 1,1-dimethoxy-2-methyl- 118 C6H14O2 041632-89-7 56 4 Formamide, N-methylthio 75 C2H5NS 000000-00-0 7 Abundance Scan 48 (3.922 min): 00248. D (-) m/z 75.00 100.00% 75

5000' 87 55 ----------- 41 45 49 71 3.60 3.80 4.00 4.20 59 +Pm]uum Trp-rrrp- Hpe m/z 87.10 36.49% mfa-> 5 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 J

5000 --------------- 87 3.60 3.80 4.00 4.20 55 m/z 55.10 29.33% 29 41 47 n/z-> 5 mmmpn 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 59.11111171., hupanpm -rrpn-rrp-r

Abundance #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 11-Dimethoxyi... 75 — 3.60 3.80 4.00 4.20 5000 m/z 49.00 12.15%

15 27 31 47 55 87 ~WA J MMWW/ 59 71 TTTImmgT +rrrTTTTTTT rrpT-rrp-r "'' l" ' ‘' l ‘ m/z—> 5 10 15 202530354045505560 65 70 75 80 85 90 95 Abundance #17846: Propane, 1,1-dimethoxy-2-methyl- 1 1 1 I ' ■ I 1 1 ' 1 I ‘ ‘ ‘ I ‘ ‘ I 75 3.60 3.80 4.00 4.20 m/z 41.10 10.97%

5000 87 55

mfz-> 5 “ i ■1 ■ ■ i ‘ 31 ' i ■ ■ • ■ i ■" • i1 ■ ■ ■ i ■ ■ “ i ■

10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 444. 59 71 ‘ “ I “ ‘ ’ I * H ‘ 11 • ‘ ’ hmmmpr -rrp-m-p-r A l 3.60 AAAMAALy ' 3.80 4.00 4.20

00248.D SCAN508.M Fri Jan 25 10:26:09 2002 Page 4

NYC-WTC_000050565