AsH3 and compounds derived from it by substituting one, two or three hydrogen atoms by hydrocarbyl groups: R3As, RAsH2, R2AsH, R3As (R ≠ H) are called primary, secondary and tertiary arsines, respectively, arsaani AsH3 derivaadid, milles üks või enam vesiniku aatomit on asendatud süsivesinikrühmaga