English Name: 5-sulfur sulfur isobhthalate
Basic raw material: isophthalic acid (IPA) is used as raw material. Through sulfonation of IPA with fuming sulfuric acid, the sulfonate is directly esterified without separation, and then neutralized and refined to prepare SIPM
Nicotinic acid, isophthalic acid, carbinol sodium bicarbonate
Who are we?
1. TNN was founded in 1998 with headquarters in Dalian, branch offices in USA, Austrilia.
2. ISO9001 Certificated,annual Sales Amount 28million US dollors, cooperative ralationship with 60+countries.
What we can do?
1. Customer-oriented sourcing and supply service.
2. Pre-shipment sample test and third-party inspection to assure product quality.
3. Customized label and packing, reinforced palletizing method to keep cargo in good condition.
4. Professtional service on mixed container load with 20+ different products in one consignment.
5. Fast speed of delivery under multiple modes of trasportation including sea,railway,air,courier.
Strict quality control:
Firstly test pre-shipment sample by TNN's lab,
If test succeeds, deliver (same batch) pre-shipment sample and confirm the Original COA with clients,
After confirmation we ship the (same batch) cargos.
If test fails,shipment suspends,TNN corrects and offers qualified one.
Audited Supplier 
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