I. Production
1. 99.99% pure nitrogen production environment, fully ensure the stability and cleanliness of polypeptide;
2, the use of liquid nitrogen pre-freezing technology, greatly ensure the polypeptide freeze-drying effect and activity;
3, two Kaiser verification, to ensure that each step of the chemical solid phase reaction is complete;
4. For disulfide bond oxidation polypeptides, site-point oxidation was adopted to ensure the accuracy of subsequent experiments of customers;
5, free desalination, and can be refined according to customer needs of different levels of salt transfer service.

Ⅱ. separate
1, the use of CNAS certified superfine 1/10000 balance for packaging, to ensure the precision of peptides.
2. The closed air filter system is adopted in the packing place to ensure the cleanliness of the product.
3, the sub-assembly table using experimental ultra-stable marble structure table, to ensure the stability of weighing sub-assembly.

Ⅲ. Delivery
1. Provide HPLC and MS reports;
2. Provide optional solution testing services;
3. Provide optional endotoxin testing services;