2results about How to "Good solubility" patented technology

The application discloses a preparation method and product of a thromboelastography rapid detection cup reagent, and comprises the following steps: adding purified water into washed or calcined kaolin, adding glycine, mannitol, dextran and bovine serum albumin while stirring, and then adding a Tris-HCl system to adjust the pH to 6.5-7.8; finally, adding a recombinant lipidized tissue factor and uniformly stirring to obtain the reagent; wherein, the content of the washed or calcined kaolin is 0.01-0.8% based on 100% of the mass of each raw material, the content of the glycine is 2-6%, the content of the mannitol is 4-8%, the content of the dextran is 2-6%, the content of the bovine serum albumin is 0.2-5%, the content of the recombinant lipidized tissue factor is 0.2-1.5%, and the balance is made up to 100% by the purified water. The application provides a preparation method of the thromboelastography rapid detection cup reagent, and the prepared reagent can be stored for a long time, has good stability, and has good freeze-drying form and solubility.

The invention relates to a crystal form B of (S)-2-aminobutanamide hydrochloride, a preparation method of the crystal form B and a method for preparing levetiracetam by using the novel crystal form. The novel crystal form can improve the reaction yield and product purity of subsequent levetiracetam.