CAS 1303-00-0 appears in our catalog under these names: Gallium arsenide/ 99.999%, Gallium arsenide Pieces <25 mm/ 99.9999% (metals basis), Gallium arsenide, 99.999% (metals basis) , Gallium arsenide, 99.9999%, Gallium arsenide, 99.999%. Offered by: Chemat, Thermo Scientific (Alfa Aesar). Available pack sizes: 2g, 10g, 50g, 1g.