GCMS analysis results for sample AD31643, Jan 28 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\02JAN17\31643.D Vial: 3 Acq On : 17 Jan 2002 4:29 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 ********************************************************************* Peak Number 2 Butanoic acid, methyl ester... Concentration Rank 6 R.T. EstConc Area Relative to ISTD R.T.

3.60 0.13 ug/L 45470 1,4-Dichlorobenzene-d4 9.71

Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Butanoic acid, methyl ester (CAS... 102 C5H10O2 000623-42-7 83 2 Butanoic acid, methyl ester (CAS... 102 C5H10O2 000623-42-7 83 3 Butanoic acid, methyl ester 102 C5H10O2 000623-42-7 83 4 Butanoic acid, methyl ester 102 C5H10O2 000623-42-7 78 Abundance Scan 20 (3.602 min): 31643.D (-) m/z 43.10 100.00% 43 74

5000 59 87 1‘■A ) M i• , . 3.50 3.60 3.70 3.80 3.90 4.00

z-> 0-PT 10 20 30 +49-- 40 . 50 60 70 80 90 * 100 110 m/z 74.10 92.36% Abundance ;#9228: Butanoic acid, methyl ester (CAS) $$ Methyl butyrat... 43 74

5000 59 87 3.50 3.60 3.70 3.80 3.90 4.00 m/z 71.10 73.38%

tnfz—> 0- ' ■ i 1 ■ ■ ■ i ■ ' ■ 1 i ■ ■ ■ ■ r 10 20 30 40 -Pp 50 60 70 11111441 80 90 100 110 102 Abundance #9222: Butanoic acid, methyl ester (CAS) $$ Methyl butyrat... 43 74 ■ ■ ■ i1 “ ■ i “ ■ ■ i “ ■ ■ i ■" ■ i1 ■ ■ ■ i ■ • i 3.50 3.60 3.70 3.80 3.90 4.00 5000 m/z 41.10 35.91% 59 87

33 102 0- ‘ ■ i 1 ■ ■ ■ i ■ ■ • ■ i ■ ■ i 1——- TTT+ • 1 I ■ 1 ■ 1 i ■ • ‘ ■ i 1 ■ ‘ ■ i

n/z-> 10 20 30 40 50 60 70 80 90 100 110 Abundance #9219: Butanoic acid, methyl ester ——I—————*———am***m***** “ i 43 3.50 3.60 3.70 3.80 3.90 4.00 m/z 87.00 29.65% 74 5000 27 15 59 87

miz—> 33 38 I 0- ----- +1*1— + 10 20 30 40 50 60 70 ■ । i ■ । 80 90 । । । 102 । i ■ ' 100 110 ...... A... 3.50 3.60 3.70 3.80 3.90 4.00

J1643.D SCAN508.M Tue Jan 22 08:37:13 2002 Page 4

NYC-WTC_000049982