CAS:	139-85-5
MF:	C7H6O3
MW:	138.12
EINECS:	205-377-7

Q1. Are you a manufacturer?
Yes, we have our own factory and lab.

Q2. What information should I let you know if I want to get a quotation?
Answer: -Quality you require, eg. Assay, Purity, or single impurity -Quantity you need -Standard you want.

Q3. Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge and pay the cost of freight.

Q4. How to make the payment?
We can accept Western Union,Bank Transfer.

Q5. When will you deliverthe goods?
For sample, in about 2 working days after payment; for larger orders (more than 1kg), in about 7 working days after payment.

Q6. How will you deliver the goods?
We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, China Air Post. For container products, we can do sea shipping. You
also can choose your own shipping forwarder.

Q7. What if we find your products unsatisfied?
We will send you a COA (Certificate of Analysis) to you first for you to confirm the quality, but if you find our products not
confirm with the COA after you receive it, please show us your test result, we will refund you once we confirm that.

Qingdao Cemo Technology Develop Co., Ltd.  is specialized in Customized APIs, Antiseptic fungicide, Daily chemicals and Dye intermediate. Cemo also supply various industrial chemicals for customers. So far, Cemo has business in more than 52 countries, most big customers come from Europe and America, because among the suppliers in china, Cemo can always make the product quality best, some of the products from Cemo can reach the purity of 99.9+. This is the important reason for customers who choosing Cemo.In the future, Crovell must become a more important trade bridge for China and foreign countries especially in pharmaceutical industries.

W-H-A-T-S-A-P-P :Double Zero One Double Nine Three Zero Five Zero One Six Five One
W-I-C-K-R : deborahjoy
We are China Top  Protocatechualdehyde Manufacturer  Supplier.We have our own Lab and Factory for  Protocatechualdehyde  to produce best quality  Protocatechualdehyde .
Cemo have decade years of export experince for pharmaceutical products.We can promise you receive your products safely and fast.
Please feel free to contact me if you are interested.