Assertion: sufentanil citrate | /r/CapableOf | occur as a white crystalline powder
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Source sentences:
text: Sufentanil Citrate, USP, occurs as a white crystalline powder and is chemically designated as N-[-4-(methyoxymethyl)-1-[2-(2-thienyl)ethyl]-4-piperidinyl]-N-phenylpropanamide 2-hydroxy-1,2,3-propanetricarboxylate (1:1).