Your Professional Dye Intermediate Supplier
 

Located in Xiasha Economic Development Park of Hangzhou city (capital of Zhejiang province in the southeast coastal region of China), Hangzhou Dingyan Chem Co.,Ltd is a modern private enterprise; Twe are mainly engaged in the development, trade and independent import and export business of hi-tech products such as pharmaceutical materials (APIs), pharmaceutical intermediates, fine chemicals and biochemical reagents, etc.

 

 
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Why Choose Us

 

Foreign trade market

Now, our products are well sold in more than 60 countries and regions in North America, Western Europe, Southeast Asia, Central and South America.

Professional team

The company has a group of professionals engaged in chemical management, production, research and development, trade.

Our certifications

The company strictly in accordance with ISO9001, ISO14001, GB/T- The requirements of 28001 are to supervise, control and operate all aspects of production in order to achieve the perfect combination of social responsibility, employee health, environmental protection and product quality.

Advanced Equipment

Professional test equipments like HPLC/GC/UV are used and full-time quality control personnel are deployed. Inspection data like ingredient, moisture and dust content and heavy metal residual, and solvents are documented completely and in detail.

 

 

Dye Intermediate Specifications

Chemical Name

Dye Intermediate

CAS

20352-84-5

EINECS

243-760-0

Molecular Formula

C7H4ClN3O2

Molecular Weight

197.58

Appearance

White powder

Color

White

Density

1.7963 (rough estimate)

Melting point

183-187 °C(lit.)

HS code

29269095

Brand Name

Megawide

 

Key Features

 

Sulfanilic Acid 121-57-3

Solubility

The intermediates should be soluble in the solvents, so that they can be easily dissolved and reacted with other chemicals to form dyes.

3-(N-Tosyl-L-alaninyloxy)-5-phenylpyrrole 99740-00-8

Stability

When a dye intermediate is stable under the reaction conditions used in the dye synthesis process, ensures that they do not decompose or react to other chemicals before they can be converted into dyes.

2,5- Furandicarboxylic Acid 3238-40-2

Purity

Dye intermediates should be pure, as impurities can affect the quality and properties of the dyes produced. High purity dye intermediates ensure the dyes produced are of high quality and have consistent properties.

 

Types of Dye Intermediates Available

 

 

Aromatic Amines

Aromatic amines are organic compounds that contain an amine group (-NH2) attached to an aromatic ring. They are used as intermediates for the synthesis of azo dyes, which are the most commonly used dyes in the textile industry.

 

Nitro Compounds

Nitro compounds are organic compounds that contain a nitro group (-NO2) attached to an aromatic ring. They are also used in the production of other types of dyes, such as acid dyes and disperse dyes.

 

Heterocyclic Compounds

Heterocyclic compounds are organic compounds that contain one or more heteroatoms, such as nitrogen, oxygen, or sulfur, in the ring structure. They are used as intermediates for the synthesis of various types of dyes, such as vat dyes, sulfur dyes, and reactive dyes.

 

 

Applications

Dye

2,4-Dichlorobenzaldehyde main application is acid blue dye and pesticide diluted Hexaconazole.

Agrochemicals

2,4-Dichlorobenzaldehyde is a material in the production of herbicides and plant growth regulators. It has use in some formulations for weed control in agriculture.

Perfumes and Fragrances

Due to its aromatic properties, it is sometimes in the synthesis of perfumes and fragrances.

 

Packaging
 

For small samples quantity <1 kilograms, inside we use double resealable zip bags and outside with aluminium Foil Bags.

For medium quanity 1-25 kilograms, inside we use double resealable zip bags and outside with aluminium Foil Bags, then packed in cartons or small drums for shipping.

For larger quanity >25 kilograms, inside we use double resealable zip bags and outside with aluminium Foil Bags OR bigger size double seal PET bags for 25kgs in bulk then packed in drums for shipping.

 

Storage

 

 

Stored in a cool and tightly sealed storage tank. Keep away from source of fire, heat source, avoid strong light exposure. Keep the container tightly sealed.Keep separate from oxidant, acids and bases. Handle with care to prevent damage to package and containers.

 

 

Our Certificates

productcate-327-462
productcate-327-462
productcate-327-462
productcate-327-462

 

FAQ

 

Q: Could you offer sample?

A: Yes,sample is available. We can send samples by couriers or air as client's requirements.

Q: What is MOQ?

A: It usually does not have MOQ requirement. We will offer the most cost-effective solution including price and delivery way according to purchasing quantities.

Q: What is the delivery time?

A: For non-hazardous,it usually has stock. It can be sent within 7 days. For hazardous chemical,it may be 1~2 weeks. If it is our regular product, the time will be earlier.

Q: Can you provide relevant documents?

A: Of course. Bill of loading,Commercial Invoice, Packing List, Origin of Certificate , insurance, COA and SDS are available. Besides, we can offer other documents Certificate of Fumigation, documents approved by CCPIT or Consulate,etc.

Q: What is your payment term?

A: TT,LC,Paypal,Western Union, ACH wire are available.

Q: Could you look for other products on China market and coload one container?

A: Yes. We have warehouse support to accomplish this.

Q: What are the examples of dye intermediates?

A: Hence, the third stage of production i.e., from nitro aromatics to a dye intermediate is a part of the dyes and dye intermediate sector. Examples of major dye intermediates are Vinyl Sulfone, Gamma Acid, H Acid, CPC Blue, J Acid, α-Naphthyl Amine, etc.

Q: What are some popular dye intermediates comprise?

A: Some popular dye intermediates comprise acid orange, yellow and acid black dyes; basic magenta lumps; malachite green crystal and others.

We're professional dye intermediate manufacturers and suppliers in China, specialized in providing high quality customized service. If you're going to wholesale discount pharmaceutical and chemical raw materials, welcome to get free sample from our factory.

121-57-3, Diphenyl Acetonitrile 86 29 3 manufacturer, molecular weight of sulfanilic acid
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