For many global industries, China has become a pivotal source for essential chemical raw materials and intermediates. Thiophene-3,4-dicarboxylic acid (CAS 4282-29-5) is no exception. When seeking to buy this compound, partnering with a reliable Chinese manufacturer and supplier is key to ensuring both quality and consistent availability.
NINGBO INNO PHARMCHEM CO.,LTD. is a prominent player in the Chinese chemical manufacturing landscape, specializing in high-purity intermediates like thiophene-3,4-dicarboxylic acid. Our commitment to stringent quality control starts from raw material sourcing and extends through every stage of production. We understand that for pharmaceutical and fine chemical applications, specifications such as purity (≥99.0%), low loss on drying, minimal heavy metals, and a consistent white powder appearance are non-negotiable.
Reliable sourcing involves more than just competitive prices. It requires a partner who can guarantee consistent batch-to-batch quality and timely delivery. Our packaging solutions, typically in 25kg fiber drums, are designed for safe transport and storage. Furthermore, our facilities are equipped to handle orders of varying scales, from R&D quantities to industrial volumes.
When evaluating potential suppliers, consider their technical expertise, commitment to international quality standards, and their ability to provide comprehensive product documentation. As a dedicated manufacturer, we are equipped to meet these demands and support your business objectives. We invite you to explore the benefits of partnering with NINGBO INNO PHARMCHEM CO.,LTD. for your thiophene-3,4-dicarboxylic acid procurement needs, ensuring a stable and high-quality supply chain.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.