CAS 26161-33-1 appears in our catalog under these names: Polyquaternium-37, Poly(2-methacryloxyethyltrimethylammonium chloride) 97%, POLY(2-(DIMETHYLAMINO)ETHYL METHACRYLAT&. Offered by: TRC, Ambeed, Sigma-Aldrich. Available pack sizes: 100mg, 1g, 500mg, 25g, 100g, 500g.