What is l-proline?

L-proline is an amino acid, one of the twenty DNA-encoded amino acids. Its codons are CCU, CCC, CCA, and CCG. It is not an essential amino acid, which means that the human body can synthesize it. It is unique among the 20 protein-forming amino acids in that the amine nitrogen is bound to not one but two alkyl groups, thus making it a secondary amine. The more common L form has S stereochemistry.

Application of l-proline benzyl ester hydrochloride:
L-proline benzyl ester hydrochloride and its derivatives are often used as asymmetric catalysts in organic reactions. The CBS reduction and proline catalysed aldol condensation are prominent examples.

L-proline is an osmoprotectant and therefore is used in many pharmaceutical, biotechnological applications.

In brewing, proteins rich in proline combine with polyphenols to produce haze.

L-proline is one of the important amino acids for synthesizing human protein. It is widely used in the food and medical industry, and is an important intermediate for synthesizing ACE inhibitors such as Captopril and Enalapril. It is also one of the important raw materials of amino acid transfusion. 
L-proline has been used universally as food additive, catalyst and raw materials of fine chemical industry.

1. ≤50kg, Express delivery recommended, usually called as DDU service;
2. ≤500kg,Air shipping recommended, usually called as CIF service;
3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
4. For high value products, please select air shipping and express delivery for safety.About us
           Shandong Zhishang Chemical Co.,Ltd owned by Zhishang International Group,is a new chemical enterprise with R&D.
   manufacture and sales department.
         Our company mainly produce pharmaceutical raw materials and intermediate(expecially Carbohydrate derivatives series).
         In recent years,we had made big breakthrough in feed additive,plant extraction,industrial chemicals line.
         With our "Honest operation,Quality controlling,Clients first"theory,our company enjoy good repute both home and abroad.
        The R&D center located in High-tech zone in Jinan,our production based is in Chemical park of Zhangqiu and Tai'an.Our production process strictly conform with ISO 9001 and ISO 2000 standard.Our lab and workshop also follows strictly with GMP standard.Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term and stable business relations.We have large scale liquid chemical terminal and professional chemical warehouse.
         We will always adhere to expand business scope and provide the best quality products and service to the world.
   

1. DO YOU ACCEPT SAMPLE ORDER?
   We accept sample orders. We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
   
    
   2.HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?
   You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
   
   3.WHAT'S YOUR MOQ?
   Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
   
   4.DO YOU SUPPLY PRODUCT REPORT?
   Yes. We'll give you product analysis report before shipping.
   
   5.IS THERE A DISCOUNT?
   Different quantity has different discount.