L-Valinol is used as a reagent in the synthesis of simple 1,3-thiazolidine-2-thione derivatives which can exhibit fungicidal activity. L-Valinol is also used as a reagent in the synthesis of small-molecule inhibitors of MDM2-p53 protein-protein interaction (MDM2 inhibitors) in clinical trials for the treatment of cancer.

Tianjin Hangyu Import and Export Co., Ltd. is a professional enterprise integrating investment, scientific research and production.

The company adopts the diversified and asset-light development mode of independent factory construction, equity participation, factory leasing and entrusted processing. Over the years, the company adheres to the concept of independent innovation and combines production, education and research. And with a number of domestic and foreign chemical groups to establish a good cooperative relationship. It will provide users with more and better products and services.

The company has strong technical force, a group of professional and high-quality talents, has a perfect product testing means and quality assurance system, closely pay attention to domestic and foreign research and production trends. Constantly develop new products to meet the different needs of customers.

Over the years, the company has always adhered to the ""quality first, reputation first, customer first, mutual benefit"" principle, adhere to the present, focus on the future, production of quality products, reputation for cooperation, innovation and development of the business philosophy.

Our products are exported to Japan, Korea, Europe and America and other developed countries. After years of herbicides, fungicides, pesticides, ammonium salts, pharmaceutical raw materials, and other organic chemicals, etc.

We look forward to establishing a wide range of friendly cooperative relations with customers at home and abroad, and warmly welcome friends from all walks of life to inquire and patronize us.

Service
1. Any inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
4. OEM/ODM Available.
5. Reasonable & competitive price, fast lead time.
6. Sample is available for your evaluation & formulation development.

Advantage
1. Faster delivery: Sample order in stock and 3-7 days for bulk production.
2. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.
3. After-Sale Service: 
1)International Authorized Third-Party Test For The Products You Demand. 
2)60 Days Warranty of quality of goods.

Q&A
Q1: How to confirm the Product Quality before placing orders?
A: By sending you our available samples.
Or if you have special requirement on the goods, we can prepare samples according to your requirement for your confirmation.
 
Q2: Can you supply free samples?
A: Yes, we can provide some free sample, but the shipping cost should be on the customers' account. You can either pay the shipping cost or arrange a courier to collect the samples.
 
Q3: What's the MOQ?
A: For the high value product, our MOQ starts from 1g and generally starts from 10g.
For other low value product, our MOQ starts from 100g and 1kg.
 
Q4: How to place order and make payment?
A: You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by TradeManager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.
 
Q5: How do you treat quality complaint?
A: All our products are strictly tested by our QC, and confirmed by QA; unqualified material will not be released to customer. 
In case any quality problem is confirmed to be caused by us, we will replace the goods or refund your payment immediately.