4-Hydroxypyridine-3-sulfonic acid CAS NO.51498-37-4

Hangzhou Yunuo Chemical Co., Ltd is located in Hangzhou city China. As a global supplier in the chemical industry, Yunuochem is to create added value for customers around the world. Sticking to such business idea of "Good faith wins the business", Yunuochem looks forward to cooperating with friends all around the world for achieving mutual-benefits and creating a bright future together!

We have customers from both domestic market and oversea market, the products are well sold to over 10 provinces in China, and to Asia, Europe, the Americas, Africa, Oceania, the Middle East, more than 30 countries and districts etc., Dupont, Bayer are both our loyal customers.

With many years of experience, we supply first-rate products to a wide range of clients worldwide, our service begins from first contact but never ends, also we offer technical support that is second to none. Some products have successfully obtained the authentication and audits of famous pharmaceutical companies in the world, thus we are very confident to expand our business into international market! In addition to our current products, we can also develop new products according to clients' specifications under agreements of confidentiality.

Our advantages are as follows:

1. reasonable price:

we provide high quality products with competitive price in china.

2. low MOQ:

no worry about the low moq, our moq is 1 gram or lower.

3. good and efficient service:

fast respond save client's time, we promise to reply inquiry in 24 hours including holidays and send quotation sheet and other documents in 48 hours.

4. high quality:

thorough market research, understand the price of raw materials and performance. to the procurement source to understand fully, and fully guarantee the quality of the procurement of raw materials. we have strict quality control system, from the selecting of raw materials to every step of the production to guarantee the quality of our products.

5．inspection

four steps: sampling, sample pretreatment, measuring and data processing.

we will provide test samples for check our quality of products, before the shipping, we will send pre-ship samples to check really products.

6.delivery:

1) sample order :package will be shipped with 3days after payment. we have a professional and stable logistics, and we can deliver the package smoothly around 3 to 5 days.

2)bulk order: shipped via sea or air, it's according to your requirement, delivery time is 7-15days after payment.

3)we will ship the goods within 5days after get your payments. if you want to cancel or change order, please tell me within 24hours after you finish the payment...so we both can make the best of the bad bargain.

4)we will ship the goods that you order from us by ems, dhl, ups, or fedex. we will decided to choose which courier depend on different countries. to find the best way to delivery the goods for you.

5)as usual you can get the goods within 4-7days.if the goods were lost or not received for other reasons, please contact me immediately

6)we will inform you all the information at every stage in advance:

at production, loading , shipping, arrival time, we will give advice to you immediately. if you have any question, you also can contact us, we will reply you as soon as possible.

7.packaging can gear to buyers’ special request:

we can provide aluminium foil bag , fiber drum, paper bag, plastics bag for powder ,we provide tin , plastics drum, steel drum for liquid. if customer has any request, we also can provide special package and materials.

8.good handling of our clients' mixed goods in one container.

9.we have more than 10 years’ exporting experience in active pharmaceutical ingredient products and our professional and thoughtful after-sales service eliminates your worries.

Welcome to contact for details and cooperation!

Hangzhou Yunuo Chemical Co., Ltd is specialized in paint and coating additives, pharmaceutical, pesticide and veterinary drug intermediates, polyurethane products, OLED material, specialty chemicals etc. for more than 20 years.

Our main Products include the following:

1, Methyl Ethyl Ketoxime (MEKO) CAS#96-29-7 Application: Anti skinning agent for coatings ,sealantofisocyanine, cross linking agent for organic silicon..

2, Dimethylolbutanoic Acid (DMBA) CAS#10097-02-6 Application: Used in polyurethane dispersions, water soluble alkyds and polyester resins, lubricating oil additives

3, Alpha-(2,4-Dichlorophenyl)-1H-imidazole-1-ethanol CAS#24155-42-8 Application: To produce imidazole antifungal drugs (such as Miconazole nitrate, Econazole nitrate etc.), pesticide (Imazalil), veterinary drug and so on.

4, 6,6',6''-(1,3,5-triazine-2,4,6-triyltriimino)trihexanoic acid CAS# 80584-91-4 Application: Water soluble corrosion inhibitors in metalworking fluids etc.

We always feel that all success of our company is directly related to the quality of the products we offer. They meet the highest quality requirements as stipulated in ISO9001, ISO14000:14001 SGS guidelines and our stringent quality control system.

Our production base is equipped with good production facilitiesincludinghundred of reaction kettles with various sizes, vacuum dryer, high-pressure (10MPa) hydrogenation and cryogenic equipment etc., we also have perfect sewage treatment system, well-equipped lab and R&D center, even one GMP refining-drying-packing workshop.

For this product, we have mature technology, to produce high quality products, supply from grams to bulk, on the other hand, with great competitiveness on price.

Why choose us

1.we could offer you competitive prices with satisfied quality.

2.we will choose the safest shipping methods to your addresses.

3.after sale service and technical assistance: our company provides after sale service and technical assistance as the customers requirements.

4.we are attention to every customer's requirements and make a good relationship with them

Our concept

1. client is first.

2. credibility is the most important.

3. quality control is our life.

4. great sense of responsibility.

We will be responsible for not only our products, our clients, also the society.

Please kindly contact us freely for getting detailed product specifications and related documents including COA and MSDS etc., we hope to establish a good cooperation with customers all over the world.