29854
The quantification was performed with the transitions of m / z 493 . 5 --> 475 . 5 for 20 ( R , S ) - 25 - OCH3 - PPD , m / z 479 . 5 --> 461 . 5 for 20 ( R , S ) - 25 - OH - PPD .
 Chemical: 20 ( R , S ) - 25 - OCH3 - PPD; Chemical: 20 ( R , S ) - 25 - OH - PPD
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 20 ( R , S ) - 25 - OCH3 - PPD; Chemical: 20 ( R , S ) - 25 - OH - PPD