CAS 71889-02-6 appears in our catalog under these names: Silica gel, C18-RP, 23%C, approx. 1 mmol/g, part. size: 40-63 micron, Silica gel, C18-RP, 17%C, approx. 0.7 mmol/g, part. size: 48-65 micron. Offered by: Thermo Scientific (Acros). Available pack sizes: 50g, 250g.