10486
Trapping the C3 ' - thymidinyl radical in biologically significant architectures delivers both the repaired oligomer and 1 - ( 2 ' - deoxy - beta - D - threo - pentofuranosyl ) thymidine - containing substrates .
 C3 ' - thymidinyl, 1 - ( 2 ' - deoxy - beta - D - threo - pentofuranosyl ) thymidine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 C3 ' - thymidinyl, 1 - ( 2 ' - deoxy - beta - D - threo - pentofuranosyl ) thymidine