256 

 Table 5-2 Continued 



Explanation of remarks (continued): 



B) The r^i of this compound is known from CI analysis. The actual 

 structure given is questionnable. 



C) The structure is known to a reasonable degree of certainty. 

 Uncertainty exists in the location of the substituted functional group 

 and/or in the double bond location. 



D) The class or base structure of this compound is characterized by a 

 specific EI fragmentation pattern. The information from CI may or 

 may not be available to assist in determining the identity of this 

 compound. 



E) The r^ from CI analysis for this compound is questionnable. 



F) Refer to the text for further explanation about this compound. 



G) This compound was previously reported in the literature as one having 

 dermal origin. 



