DEP GCMS data table, Jan-Feb 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02FEB27\02385.D Vial: 1 Acq On : 27 Feb 2002 3:17 pm Operator: Sample : 508 scan Inst : Instrumen Mise : February 2 7, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\l-..\HP022102.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L

Peak Number 3 2,2-dimethoxybutane Concentration Rank 2

R.T. EstConc Area Relative to ISTD R.T. 4.24 0.57 ug/L 265234 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2,2-dimethoxybutane 118 C6H14O2 003453-99-4 83 2 2,2-Dimethoxybutane 118 C6H14O2 003453-99-4 83 3 Glycine, methyl ester $$ NH2CH2C... 89 C3H7NO2 000616-34-2 59 4 Methanethioamide, N,N-dimethyl- ... 89 C3H7NS 000758-16-7 38 Abundance Scan 77 (4.243 min): 02385.D (-) m/z 87.10 100.00% 8|7

55 43 5000 A....... K............... 103 3.80 4.00 4.20 4.40 4.60 1 । 71 O+ n7erry । । i sri । । । u 11 । ll -t- ifl 11 i d i Ji■J11..11111 > j111.11 > i. 11 ■ > 111 + ‘ i ■ " ■ i" । ■ i11111 m/z 89.00 96.44% m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 Abundance #17889:2,2-dimethoxybutane 87 55

5000 45 3.80 4.00 4.20 4.40 4.60 27 m/z 55.10 64.05% 33 — 92 103 01 " I'''' I' " r'111" '11" 111011—0111111111111111 |. I ■ ■ । >1 ■ ■ । ■ l ■ i > ■ ■ ■ i ■ ■ miz- > 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 Abundance #17888: 2,2-Dimethoxybutane 55 87 AA9...... 3.80 4.00 4.20 4.40 4.60 m/z 43.10 53.95% 5000 45 27 40

92 103 33 — 0 " ।"1 ■ i' " i"11 r 1 ‘1 " " I" " I — 11" " i" " i ■ ■ m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 Abundance #5025: Glycine, methyl ester $$ NH2CH2COOCH3 89 3.80 4.00 4.20 4.40 4.60 m/z 45.10 15.14%

5000 44 59 0 -H 54 I. 66 , I" "I'1'11" "I'~. .......... . 11111 ii1111 TTTTTT A/A... ./ m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110 3.80 4.00 4.20 4.40 4.60

32385.D HP022102.M Thu Feb 28 08:47:02 2002 Page 5

NYC-WTC_000005014