Best price 99% purity MelatonineCAS NO.73-31-4 CAS NO.73-31-4

Specification

Our Advantages

1. The product quality has passed the professional production process and quality inspection, and the purity is more than 99%; We have a professional RESEARCH and development team and strong technical force to ensure technical support and research capabilities.

2. Made in China and exported to many countries and regions at the most favorable price.

3. Our products are of high quality and low price, and we have sufficient stock.

4. Safe and prudent shipping a variety of transportation modes for you to choose.

5.We have the Warehouse in the US, can achieve fast Shipping

Company Profile

Shengzhikai Biotechnology Co., Ltd. is a high-tech enterprise dedicated to the fields of fine chemical products. The scope of products covers pharmaceutical intermediates, plant extracts, chemical reagent, animal pharmaceutical, agrochemical intermediates, antibiotic and so on. Our company have own import and export right. Our clients spread all over the world. Based on the advantage of trade and manufacture, we strictly control the whole trade process, providing customers with all-round services such as R&D, quality control, logistics and so on. We firmly believe that quality is the life of our company and customer's success is our success. Reliable quality and excellent service is our permanent commitment . We wish to establish a long term mutual beneficial relationship with more friends in the future and give our customers the best products and services that they expect and deserve.

Packing & Delivery

You can specify delivery way .We are okay with DHL /Fedex/TNT/UPS/EMS or by ship or air 

Lead time: Peak season 4-8 days ,off season 3-7days after payment

We have rich experience in customer clearance to Asian countries, USA ,EU,Canada ,safe and fast delivery door to door .

FAQ

Q1 Can i get some samples

A1 Yes, we can supply the free sample, but the shipping cost be paid by our customers.

Q2 How to start orders or make payments

A2 Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Payment by T/T, or Paypal or Escrow(Alibaba).

Q3 How to confirm the Product Quality before placing orders

A3 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.

Q4 What's your MOQ

A4 Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Q5 How about delivery leadtime

A5 Delivery lead time: About 1-3days after payment confirmed. (Chinese holiday not included)

Q6 Is there a discount

A6 Different quantity has different discount.

Q7 How do you treat quality complaint

A7 First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.

GUARANTEE QUALITY OF EACH PRODUCT !