13775
The interaction of dilute solutions of dimethyl methylphosphonate ( DMMP ) in H ( 2 ) O with thin porous layers of gamma - Al ( 2 ) O ( 3 ) has been studied under steady - state conditions using infrared multiple - internal - reflection spectroscopy .
 dimethyl methylphosphonate, DMMP, H ( 2 ) O, Al ( 2 ) O ( 3 )
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 dimethyl methylphosphonate, DMMP, H ( 2 ) O, Al ( 2 ) O ( 3 )