CAS 691-24-7 appears in our catalog under these names: N,N''-Di-tert-butylcarbodiimide , 98.00%, Bis(tert-butyl)carbodiimide, N,N'-Di-tert-butylcarbodiimide, >98.0%(GC), N,N'-di-tert-butylmethanediimine 99%, 1,3-DI-TERT-BUTYLCARBODIIMIDE, 99%. Offered by: Chemat, Biosynth, TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 10g, 25g, 5g, 0,005kg, 0,01kg, 5ml, 25ml, 0,025kg.