The present invention provides substantially pure Lanreotide or its salt and preparation thereof. In another aspect present invention provides a method of preparing Lanreotide dmg product which involves measuring D-Allo-Threonine Lanreotide impurity content in the Lanreotide or its salt. The present invention also provides a method of assaying purity of a sample of Lanreotide or its salt or a pharmaceutical dosage form comprising Lanreotide or its salt.
本发明提供了基本纯的Lanreotide或其盐及其制备方法。在另一个方面,本发明提供了一种制备Lanreotide dmg产品的方法,该方法涉及测量Lanreotide或其盐中的D-阿洛苏
氨酸Lanreotide杂质含量。本发明还提供了一种测定Lanreotide或其盐样品或包含Lanreotide或其盐的药物剂型纯度的方法。