CAS 50-00-0 appears in our catalog under these names: Formaldehyde (37% Solution in Water), Formaldehyde, 37% in aq. soln., ACS, 36.5-38.0%, stab. with , Paraformaldehyde, 10% w/v aq. soln., methanol free , Paraformaldehyde, 20% w/v aq. soln., methanol free , Paraformaldehyde, 8% w/v aq. soln., methanol free . Offered by: Chemat Brand, Thermo Scientific (Alfa Aesar). Available pack sizes: on request, 500ml, 1L, *4x1L, *2x10ml, *10x10ml, 2500ml, 250ml.