CAS 475-20-7 appears in our catalog under these names: Longifolene (>75%), Calcium Carbide, Calcium carbide , Calcium carbide, 72-82%, CALCIUM CARBIDE, PIECES, TYPICALLY <10M&. Offered by: TRC, Chemat Brand, Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros), Sigma-Aldrich. Available pack sizes: 10g, 1g, 250mg, on request, 1kg, *5x1kg, 2.5KG, 250g.