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- مسحوق أراروبا هو دواء يوجد في شكل مسحوق بني مصفر، يتفاوت بشكل كبير من ناحية اللون، له اسم بديل،هو مسحوق غوا، نسبة إلى مستعمرة غوا البرتغالية، حيث يبدو أنها قد أدخلت في عام 1852، و يعرف أيضا باسم مسحوق باهيا. الشجرة التي تنتج ذلك المسحوق هي أنديرا أراروبا من ليغومينوساي النظام الطبيعي. ويجتمع مع وفرة كبيرة في بعض الغابات في مقاطعة باهيا في البرازيل، ويفضل كقاعدة بقع منخفضة ورطبة. الشجرة طولها من 80 إلى 100 قدم. (ar)
- Araroba powder, also known as Bahia powder and Goa powder, is a drug occurring in the form of a yellowish-brown powder, varying considerably in tint, from the Portuguese colony of Goa, where it appears to have been introduced about the year 1852. The tree which yields it is the Andira araroba of the family Fabaceae. It is abundant in certain forests in the province of Bahia in Brazil as well as imported into India, preferring as a rule low and humid spots. The tree ranges from 80 to 100 ft. high and has large imparipinnate, or feather shaped, leaves, the leaflets of which are oblong, about 12 in. long and 1 in. broad, and somewhat truncate at the apex. The flowers are papilionaceous, of a purple color and arranged in panicles. The Goa powder or araroba is contained in the trunk, filling crevices in the heartwood. It is a morbid product in the tree, and yields to hot chloroform 50% of a substance known officially as . It occurs as a microcrystalline, odorless, tasteless powder, very slightly soluble in either water or alcohol; it also occurs in rhubarb root. This complex mixture contains pure chrysarobin, di-chrysarobin, and di-chrysarobin methylether. Chrysarobin is a and exists as a glucoside in the plant, but is gradually oxidized to chrysophanic acid (a dioxy-methyl anthraquinone) and glucose. This strikes a blood-red color in alkaline solutions, and may therefore cause much alarm if administered to a patient whose urine is alkaline. (en)
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