18252
" Mosher 's acid " , or " α-methoxy-α-trifluoromethylphenylacetic acid " ( " MTPA " ) is a carboxylic acid which was first used by Harry Stone Mosher as a chiral derivatizing agent .
 Harry Stone Mosher
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Harry Stone Mosher