During spectroscopic analysis of paclitaxal order from sigma, I am getting the maximum absorption of paclitaxal dissolved in methanol at 211 nm. However, according to the previously reported literature, it is between 227-230. I have cross-checked the results in three different instruments along with changing the cuvettes but the results are still the same. what could be the reason and also is it okay if I continue the further analysis at 211 only?