Arabinopyranosyl-N-methyl-N-nitrosourea, also known as Aranose (Араноза) is a cytostatic anticancer chemotherapeutic drug of an alkylating type. Chemically it is a nitrosourea derivative. It was developed in the Soviet Union in the 1970s. It was claimed by its developers that its advantages over other nitrosoureas are a relatively low hematological toxicity (compared to other nitrosoureas available at that time) and a wider therapeutic index, which allows for its outpatient administration.