Mostly appears in compounds and signs rather than as a stand-alone verb: 售货员 (shòuhuòyuán, shop assistant), 售货机 (shòuhuòjī, vending machine), 自动售货 (automatic vending). For 'to sell' in everyday speech, 卖 (mài) is overwhelmingly more common.
memory
售 (shòu, to sell — same character as in 出售 'for sale', 售价 'selling price') + 货 (huò, goods) = 'sell goods'. The pair feels more formal than the single character 卖.
