CAS 54655-07-1 appears in our catalog under these names: (Trimethylsilyl)ethynyllithium, Lithium (trimethylsilyl)acetylide, 0.5M solution in THF, AcroSeal®, LITHIUM (TRIMETHYLSILYL)ACETYLIDE, 0.5M&. Offered by: GLPBio, Thermo Scientific (Acros), Sigma-Aldrich. Available pack sizes: 100ml, 25ml, 50ml, 800ML, 4X25ML, 500ML.