GCMS blank analysis results for sample AE00027, Jan-Feb 2002

NYC 9/11 Public Portal Document

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Data File : C:\MSDCHEM\l\5973N\02JAN25\0104BA.D Vial: 1 . Acq On : 25 Jan 2002 10:12 am Operator: Sample : lab blank 1/4 a Inst : Instrumen Mise : January 25, 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 5 2-Butenal, 3-methyl- $$ Cro... Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 4.84 0.22 ug/L 88215 1,4-Dichlorobenzene-d4 9.72 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Butenal, 3-methyl- $$ Crotonal... 84 C5H80 000107-86-8 74 2 2-Butenal, 3-methyl- (CAS) $$ 3-... 84 C5H80 000107-86-8 74 3 2-Butenal, 3-methyl- 84 C5H80 000107-86-8 64 4 2H-Pyran, tetrahydro-2-methoxy- ... 116 C6H12O2 006581-66-4 59 Abundance Scan 128 (4.835 min): 0104BA.D (-) m/z 84.05 100.00% 84

55 5000 39 59

43 51 । 69 4.40 4.60 4.80 5.00 5.20 ■ ■ i ■ ■ ■ ■ i ■ ■111 ■ .... ilJT.... ii.1, 4— i ■ ■ ■ ■ i1 - ■ i ■ ■ ■ ■ i ■ ■ Tr TT".'.‘.i m/z 55.10 55.94% m/z-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #3222:2-Butenal, 3-methyl- $$ Crotonaldehyde, 3-methyl- $... 84 55

5000 39 ! , , rh 0 27 4.40 4.60 4.80 5.00 5.20 m/z 83.10 44.02% 44 51 | 69 mlz-> ■ ■ i ■ ■ ■ ■ i ■ T H —PImPPTTT 1 rrm.I. M.rm ■ < i • ’«• r p-rrl-r 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #3221:2-Butenal, 3-methyl- (CAS) $$ 3-Methyl-2-butenal $$... 84 55 i ' ■ ■ ■ i ■ ' ■ ■ i ■ ' ■ firE > । । । < 4.40 4.60 4.80 5.00 5.20 5000 39 m/z 39.10 41.27% 27

44 51 | 69 ■ ■ ।' ■ ■ ■ ।' ■ ■ P 1 ■11 TITT — +IPTTTT ■ 1*1111111’I nz-> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Abundance #3224:2-Butenal, 3-methyl- 0mmTumTTOT 84 4.40 4.60 4.80 5.00 5.20 m/z 59.10 38.17%

50001 55 41

50 , , ..... 66 69 ' ■ i' " ■ i " '' r " 1 i " " i +TTTT 4 1'11r"' I ■ ■'11" 1 ■ i ■ u 111 ‘ -t-p-TTT-p-TT-q i 1 1 1 1 1 1 1 —AA m/z—> 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 4.40 4.60 4.80 5.00 5.20

0104BA.D SCAN508.M Mon Jan 28 09:50:06 2002 Page 7

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