GCMS analysis results for unknown compounds, June 2002

NYC 9/11 Public Portal Document Llprary searcn compound Report Data File C: \MSDCHEM\ 1 \DATA\ 0 6 0 7 0 2 \ 12 7 3 8 . D Vial: 14 Acq On 7 Jun 2002 7:10 pm Operator: Sample Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e

Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 17 Butane, 2,2,3,3-tetramethyl- Concentration Rank 17

R.T. EstConc Area Relative to ISTD R.T.

8.70 0.33 ug/L 191615 1,4-dichlorobenzene-d4 9.89

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Butane, 2,2,3,3-tetramethyl- 114 C8H18 000594-82-1 12, 2 Pentane, 2,2,3,4-tetramethyl- 128 C9H20 001186-53-4 3 Cyanic acid, ethyl ester 71 C3H5NO 000627-48-5 4 Methane, isocyanato- 57 C2H3NO 000624-83- 9 Abundance Scan 957 (8.702 min): 12738.D (-950) (-) m/z 57.10 10 .00% 57

5000 71 43 37 | 85 99 8.40 8.60 8.80 9.00 0- pomp - - 1............... 1............. m/z 56.10 36.41% •n/z-> 0 10 20 30 40 50 60 70 80 90 100 110 120 Abundance #112182: Butane, 2,2,3,3-tetramethyl- 57

5000 41 8.40 8.60 8.80 9.00 29 m/z 71.10 31.40% 2 15 I, 1111 51. , 1 63 69 77 83 99 114 0- I ■ ■ i • • ■ ■ i ■ ■ 1 ■ i ■ ■ 1 111 n/z-> 0 10 20 30 40) 50 60 70 . 80 90 100 110 120 Abundance #112302: Pentane, 2,2,3,4-tetramethyl- 57 43 ‘ ■ i 1 1 ■ • i ■ 1 ■ ■ i 8.40 8.60 8.80 9.00 5000 m/ z 43.10 24.17%

29

niz-> Abundance 0- m 0 10 20 30 40 71 85 — +1111 'T''' ■ i ■ ■ 1 • i ■ ■ ■ ■ i ■ ■ ■ ■ i ■ ■ ' ' i ‘ 50 60 70 80 90 100 110 120 #461: Cyanic acid, ethyl ester 29 8.40 8.60 8.80 9.00 m/z 41.10 17.02% 56

"hHHtMr 5000 71

43

n/z-> 0 .... । 0 10 20 — 30 40 50 Iua|.s**G r1 III 60 70 80 90 100 110 120 8.40 8.60 8.80 9.00____

12738.D 060302 .M Mon Jun 10 11:45:49 2002 Page 20

NYC-WTC_000015277