DEP GCMS data table, Jan-Feb 2002

NYC 9/11 Public Portal Document

Library Search Compound Report

Data File : C:\MSDCHEM\1\5973N\02FEB26\02086.D Vial: 3 Acq On : 26 Feb 2002 4:27 pm Operator: Sample : 508 scan Inst : Instrumen Mise : February 26, 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 ISOBUTYRALDEHYDE, DIMETHYLA... Concentration Rank 6 R.T. EstConc Area Relative to ISTD R.T. 3.93 0.07 ug/L 32711 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 83 2 ISOBUTYRALDEHYDE, DIMETHYLACETAL... 118 C6H14O2 000000-00-0 74 3 Propane, 1,1-dimethoxy-2-methyl- ... 118 C6H14O2 041632-89-7 74 4 Propane, 1,1-dimethoxy-2-methyl- 118 C6H14O2 041632-89-7 64 Abundance Scan 49 (3.927 min): 02086. D (-) m/z 75.10 100.00% 75

5000 87 55 47 43 51 71 3.60 3.80 4.00 4.20

/z—> 0-— 11' ‘ " i'' " i 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 "I’T —84+ m/z 87.10 35.15% Abundance #17848: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75

5000 . .... /’ ’I 87 3.60 3.80 4.00 4.20 15 55 m/ z 55.10 22.56% 27 31 47 — 59 71 0b ■1111 "11111111" " J "1 —TTT *1— m/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #17847: ISOBUTYRALDEHYDE, DIMETHYLACETAL $$ 1 1-Dimethoxyi... 75 1 i ' ’ ' 1 i 3.60 3.80 4.00 4.20 5000 m/ Z 47.00 17.33% 87 31 47 55

m/z-> 5 Abundance Oh 10 m 43 7159 — —pH *......... I" ’ I’’ ' 1" 11" " I 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 #17844: Propane, 1,1-dimethoxy-2-methyl-$$ Isobutylaldehy... 1 ■ i ■ ' ' 1 1’ ■ 1 171 r' ........ i 75 3.60 3.80 4.00 4.20 m/z 45.10 9.53%

5000 87 47 55 43 59 71 0- ■ ■ i ‘ — ■ i "'' i 11111111111 —mt i ■ ■1' 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

02086.D HP022102.M Wed Feb 27 08:35:01 2002 Page 4

NYC-WTC_000004612