"A white hand fragrant as Arabia"

This recalls Act 5, Scene 1 of Shakespeare's 'Macbeth', where Lady Macbeth sleepwalks in her madness and laments the blood she believes is on her hands.  She cries that "All the perfumes of Arabia will not sweeten this little hand".  The scene from the 1971 Roman Polanski adaptation of the play can be seen below, with Francesca Annis as Lady Macbeth.

Perfume is believed to have been used in Arabic and Persian cultures as far back as the 6th Century AD.  The abundance of spices, flowers, herbs, oils and musks available led them to become pioneers in the manufacture of scent, which they began to trade in Europe in the 14th Century.