Table 3. Ten Elemental Formula Most Mass-Similar to Diazinon (#1)a.
| # | elemental comp. | mass error (ppm) |
|---|---|---|
| 1 | C12H21N2O3S1P1 | 0 |
| 2 | C13H21N2O2Cl1S1 | 0.582044 |
| 3 | C14H18N4P2 | –1.249587 |
| 4 | C20H17O1P1 | 2.144028 |
| 5 | C21H17Cl1 | 2.726072 |
| 6 | C10H16N4O7 | 2.791840 |
| 7 | C22H12N2 | –3.291675 |
| 8 | C15H22O2Cl2 | –4.485359 |
| 9 | C13H23N2Cl1P2 | 4.768161 |
| 10 | C14H22O3Cl1P1 | –5.067404 |
a
Showing the wildly varying number of elements present. Most formulas do not include sulfur or phosphorous (which are present in the correct formula), and some include chlorine (not present). The range of carbon atom numbers is 10–22.