3-[2-(Trimethylsilyl)ethynyl]thiophene130995-13-0100 % similar 3-Thiophenecarbonitrile1641-09-443 % similar Bis(trimethylsilyl)acetylene14630-40-132 % similar 3-Methoxythiophene17573-92-130 % similar 3-Ethylthiophene1795-01-330 % similar