| Agent Name | TRYPTOPHAN, L- |
| CAS # | 73-22-3 |
| RTECS # | YN6130000 |
| Agent Code | X3075 |
| Code | Occupation Description (1980) | Total # Employees (Male & Female) |
Total # Female Employees |
| 019 | MANAGERS AND ADMINISTRATORS, N.E.C. | 424 | 417 |
| 069 | PHYSICISTS AND ASTRONOMERS | 14 | |
| 078 | BIOLOGICAL AND LIFE SCIENTISTS | 217 | 208 |
| 083 | MEDICAL SCIENTISTS | 225 | 162 |
| 084 | PHYSICIANS | 13 | |
| 086 | VETERINARIANS | 2,015 | |
| 095 | REGISTERED NURSES | 9,809 | 9,509 |
| 096 | PHARMACISTS | 2,646 | 1,144 |
| 203 | CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS | 5,722 | 4,610 |
| 208 | HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. | 403 | 403 |
| 223 | BIOLOGICAL TECHNICIANS | 454 | 179 |
| 224 | CHEMICAL TECHNICIANS | 95 | 63 |
| 235 | TECHNICIANS, N.E.C. | 14 | 7 |
| 446 | HEALTH AIDES, EXCEPT NURSING | 462 | 326 |
| 453 | JANITORS AND CLEANERS | 624 | 403 |
| 487 | ANIMAL CARETAKERS, EXCEPT FARM | 806 | 806 |
| 754 | PACKAGING AND FILLING MACHINE OPERATORS | 193 | 96 |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 289 | 145 |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 385 | 145 |
| TOTAL | 24,809 | 18,622 | |
*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.