The peroxide fraction in fr esh THF produced. by BASF lies well below 1 mg/kg (< 1 ppm). However, due to the natur e of the product, it may rise during transpor t, ï¬lling, reï¬lling, storage and sampling. Properties. Tetrahydrofuran distilled pur e (THF) is a clear, colorless, low-boiling, volatile, polar liquid. It is a cyclic, aliphatic ether with a characteristic. odor reminiscent of acetone.
Pancreatic cancer is one of the few cancers for which survival has not improved substantially over nearly 40 years. Pancreatic cancer has the highest mortality rate of all major cancers. 91% of pancreatic cancer patients will die within five years of diagnosis â only 9% will survive more than five years.
Life expectancy. The life expectancy for stage 4 pancreatic cancer is very low and is worst among all forms of cancers. The median survival rate for patients with stage 4 pancreatic cancer is about 3 to 5 months.The reason for the low life expectancy for stage 4 pancreatic cancer is that the cancer is not confined only to the pancreas. Prognosis of stage 4 pancreatic cancer is thus not very good.he median survival rate for patients with stage 4 pancreatic cancer is about 3 to 5 months. The reason for the low life expectancy for stage 4 pancreatic cancer is that the cancer is not confined only to the pancreas. Prognosis of stage 4 pancreatic cancer is thus not very good.