GCMS blank analysis for sample AD31585, Jan 17-22 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\1\5973N\O2 JAN17\0103B.D Vial: 1 Acq On : 17 Jan 2002 10:11 am Operator: Sample : lab blank 1/3 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 Furan, 2,3-dihydro-4-methyl - Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 4.84 0.22 ug/L 62965 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Furan, 2,3-dihydro-4-methyl- 84 C5H80 034314-83-5 64 2 2-Butenal, 3-methyl- $$ Crotonal... 84 C5H80 000107-86-8 64 3 Furan, 2,3-dihydro-4-methyl- (CA... 84 C5H80 034314-83-5 64 4 2-Butenal, 3-methyl- (CAS) $$ 3-... 84 C5H80 000107-86-8 64 Abundance Scan 128 (4.835 min): 0103B. D (-) m/z 84.00 100.00% 84 55 41 5000 59

44 50 4.40 4.60 4.80 5.00 5.20

miz-> 01 20 25 30 35 .,77011 40 45 50 55 60 65 70 75 i ■1 ■ • i •' ■ ■ i ■ ■ ■ ■ i1 ■ ■11 ■ ■ 80 TITT 85 90 95 m/z 55.10 69.50% Abundance #3350: Furan, 2,3-dihydro-4-methyl- 515 84

5000 41 27 4.40 4.60 4.80 5.00 5.20 69 m/z 41.10 50.18% 44 51 m/z-> 01 ■' i' ■ ■' i' “I"" I''' - 37 -1 — H.. 1 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #3222:2-Butenal, 3-methyl- $$ Crotonaldehyde, 3-methyl- $... 84 55

39 4.40 4.60 4.80 5.00 5.20 5000 m/z 39.10 42.94% 27

miz-> 01 20 TTTTH 1111111 44 51 I —H H 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 69 1111' I'1111 Abundance #3351: Furan, 2,3-dihydro-4-methyl- (CAS) $$ 4-METHYL-2,3-... 55 84 4.40 4.60 4.80 5.00 5.20 m/z 83.00 40.85% 5000 41

69 44 51 — 01 ■' i ‘ ' i ■ ■ ■ ■ i ■ ■1 ■ i ■ " U1111 ■'" H1 ■ ■ । ■1 “ । ‘ । ■ ■ ■ ■ ।। ■1 /z-> 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

0103B.D SCAN508.M Tue Jan 22 08:36:47 2002 Page 4

NYC-WTC_000049897