High purity 3,4-Dihydroxybenzoic acid CAS NO.99-50-3

FOB Reference Price:Get Latest Price
US $12-37 / Kilogram | 1 Kilogram/Kilograms (Min. Order)
Supply Ability:
1000000 Milligram/Milligrams per Year
shanghai port
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Quick Details
Sulfonic Acid
CAS No.:
Other Names:
Protocatechuic acid
Place of Origin:
Shanghai, China (Mainland)
Grade Standard:
Industrial Grade
White Powder
Verification of iron
Brand Name:
Model Number:
Melting point:
197-200 °C
1.54 g/cm3
Packaging & Delivery
Packaging Details
Solid:Woven bag with PE INNER or as Clients' requirements
Liquid:Plastic bottle or Drum or as Clients' requirements
Delivery Time
within 5 days
Our Company
Company introduction.
Famouschem Technology(Shanghai) Co., Ltd. is established in 2012 and located in Shanghai---the economic center of China. We have one workshop with production capacity of 5000 tons per year, and one research and test center which is located in Jiangsu province. In Shanghai office, there still has a professional sales team whose average exporting experience is over 4 years.
Our customers are from all over the world, such as East and South-East Asia, North America, Europe and Australia.
Our business philosophy is to provide high quality products, great service and competitive price for customers. Your satisfaction is our perseverant pursuit. Welcome to our company when you are convenient.

Packing & Delivery


For products with liquid form, according to the quantity you need and your requirement of package, they can be packed by 1 kg/bottle, 5 kg/drum; 25 kg/drum; 200 kg/drum or IBC drum, etc.


For products with solid form, according to the quantity you need and your requirement of package, they can be packed by 1 kg/bag; 25 kg/bag; 50 kg/bag; 25 kg/drum, ton bag, etc.


For small quantities, we usually choose DHL, FedEx, TNT, EMS, UPS or other special transportation lines. Besides, air transport also is normal and available.

More detailed


We provide a series of services, such as information consulting, data offering, delivery tracking, issuing solving, etc. We use instant messaging tools, such as WhatsApp, Wechat, Skype, and are 24-hours online. You can contact us in anytime through these tools or by email.


There are a lot of payment ways for your choice, such as T/T, Paypal, Credit card, Alibaba trade insurance and Western Union.

Besides, you can also pay RMB via Alipay or other channels.

Q1: Are you a manufacturer or trading company?
Re: We are one company integrated industry and trade. No matter the products we manufacture or trade, high quality products and competitive price always will be provided for you.

Q2: May I get one sample before placing order?
Re: Yes, we'd like to provide sample for you. For those normal products, you just need to bear the freight; for those high value products, you just need to freight and a little product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.

Q3: Which payment is available for your company?
Re: In order to prompt our cooperation, there are some payment methods for your choice. T/T(USD), Western union, Paypal, Credit card, Alipay or Alibaba trade insurance all is ok. You can choose the one which is convenient for you.

Q4: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, T/T, EMS, etc.) or by air. Usually it will cost 2-5 days that you can get the goods after delivery.
For large quantity products, shipment is better. It will cost days to weeks to come to your destination port, which depends on where the port is.

Q5: Is there any possible to use my appointed label or package?
Re: Sure. If needed, we'd like to use label or package according to your requirement.

Q6: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are high qualified. If the goods can't come to the quality we promise, you can ask for refund.

Contact us