DEP document fragment, February 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\HPCHEM\1\DATA\02FEB05\0205B1.D Vial: 1 Acq On 5 Feb 2002 8:51 am Operator: 201-wb Sample : lab blank 1 Inst : GC/MS Ins Mise : February 5, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\HPCHEM\1\METHODS\HP020502.M (RTE Integrator) Title : VOCS BY EPA METHOD 524 Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 4 2,4-Imidazolidinedione, 3-meth Concentration Rank 3 R.T. EstConc Area Relative to ISTD R.T. 15.74 0.04 ug/L 45244 1,4-DIFLUOROBENZENE 15.10

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2,4-Imidazolidinedione, 3-methyl- 114 C4H6N2O2 006843-45-4 3 2 1-(Propenylthio)prop-1-ene 114 C6H10S 000000-00-0 3 3 3-Cyclobutene-1,2-dione, 3,4-dihydr 114 C4H2O4 002892-51-5 2 4 Ethyl diazoacetate 114 C4H6N2O2__ _______ 000623-73-4 2 Abundance Scan 681 (15.740 min): 0205B1.D (-) m/z 114.15 100.00% 1 4

5000 63 88 38 50 57 —........ 15.40 15.60 15.80 16.00 ''1' _44 i ' ' ' ' i ' ■ ' ■ i ■ 1 ‘ ■ I ■ ■ ■ 1 i ■ ■ ' 1 i ■ ■ ■ ■ i m/z 63.05 25.42% mz-> Abundance 20 30 40 50 60 70 80। 90 #64088:2,4-lmidazoIidinedione, 3-methyl- 100 110 ' 120 ' A 1 4

58 5000 15.40 15.60 15.80 16.00 ' 86 m/ z 88.10 20.40% 42 12//—U/TCDBI//IE/ —.T 11**AI71 ’’I’* 1 i 1 1 1 ■ । ■ 1 1 1 ।1 ’’I* A n/z—> 20 30 40 50 60 70 80 90 100 110 120 Abundance #2940: 1-(Propenylthio)prop-1-ene 41 1 4 99 --- 15.40 15.60 15.80 16.00 5000 m/z 56.95 13.51%

i • ■ • ■ i ■ ■ ■ ■ i • ■ LXX 85 ■ i ■ ■ ■ • i ■ ■ ■ ' I 1 1 1 1 i ' 1 ' I ‘ ■ miz-> Abundance 20 30 40 50 60 70 80 90 100 #64087:3-Cyclobutene-1,2-dione, 3,4-dihydroxy- 110 120 . ...... Q 29 58 15.40 15.60 15.80 16.00 ' ' ' m/z 50.05 13.34%

5000 114

— d—68 86 41 ■ > r * • •»i < > -n/=0n/D//G/—DnnI-T - 71414 14/4/14 m/z—> 20 30 40 50 60 70 80 90 100 110 120 15.40 15.60 15.80 16.00

0205B1.D HP021102.M Wed Feb 13 12:52:53 2002 Page 4

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