Hebei Guanlang Biotechnology Co., Ltd.

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Product Certification

Hebei Guanlang Biotechnology Co., Ltd.

Country:China (Mainland)

Business Type:Lab/Research institutions

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    Tel: +8619930503256

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Chinese 2-Methylimidazole supplier/suppliers manufacturer factory

Chinese 2-Methylimidazole supplier/suppliers manufacturer factory CAS NO.693-98-1

  • msdsMSDS/COA Download

  • Min.Order: 0 Metric Ton
  • Payment Terms: L/C,T/T,Western Union,MoneyGram,Other
  • Product Details


  • 693-98-1
  • 2-Methylimidazole
  • 1,1-Dimethylbiguanide hcl

Quick Details

  • ProName: Chinese 2-Methylimidazole supplier/su...
  • CasNo: 693-98-1
  • Molecular Formula: C18H25NO
  • Appearance: white crystalline powder
  • Application: the electrical and electrolytic applic...
  • DeliveryTime: within 7-10 days
  • PackAge: according to your request
  • Port: any port in China
  • ProductionCapacity: 1000 Metric Ton/Month
  • Purity: 99% min
  • Storage: keep in dry and cool
  • Transportation: air, express, sea
  • LimitNum: 0 Metric Ton
  • Valid Period: 2 years



Curing agent or accelerator in powder coatings, CCL and EMC;




As accelerator in epoxy, amount of 2-methylimidazole was about 1-3 phr;               Curing condition: 120℃/30min;Gel-time at 150℃:40min(4phr, resin:DER-664)

This product has a bit irritant sell. Do not get in eyes, on skin or on clothing. Avoid breathing vapor, mist or spray. Use with adequate ventilation. Gloves and mask are needed.



2-methylimidazole is supplied in a 25Kg plastic drum. It should be stored at room temperature in the  original sealed container away from excessive heat and humidity. Please avoid acid and oxidant. Under these storage conditions, the shelf life is 1 years.

Specification of Azithromycin dihydrate






A White or almost white crystalline powder



Practically insoluble in water,freely soluble in anhydrous ethanol and in methylene chloride







Meet the requirements



9.0 ~ 11.0


Related substances

Desosaminylazithromycin ≤0.3%

N-demethylazithromycin ≤0.7%

Any other single impurity ≤1.0%

Total impurities≤3.0 %





Residual solvents

Acetone ≤0.5%


Loss on drying

4.0 % ~ 5.0%

4.5 %

Residue on Ignition


0.04 %

Melting point

50 °C ~ 60 °C

50 °C ~ 60 °C

Sulphate ash



Heavy metals

≤ 25 ppm

NMT25 ppm

Assay( calculated on the anhydrous basis)

945 ug ~ 103 ug of azithromycin per mg

982 ug/ mg


This product complied with the standard of Enterprise/USP

Function of Azithromycin dihydrate
Azithromycin Dihydrate is used for acute pharyngitis, acute tonsillitis caused by Streptococcus pyogenes.
Azithromycin is used for acute throat and tonsillitis which are caused by streptococcus pyogenes, otitis.
Azithromycin can treatment of media sinusitis acute bronchitis skin soft tissue infection which are caused by sensitive bacteria.
Azithromycin is also used for pneumonia urethritis cervicitis and so on.

Application of Azithromycin dihydrate

1.Applied in pharmaceutical field, Azithromycin can be used for respiratory tract infections, urinary tract in fections, skin and soft tissue infections and sexually transmitted diseases;
2.It also to be effective against lateonset asthma, but these findings are controversial and not widely accepted
Packaging & Shipping


                                   Shipping Terms                                                   

              By Express

                     By Air

                  By Sea

      Suitable for under 50kg

      Fast: 3-7 days

      High cost

      Door to door service,

      easy to pick up the goods

      Suitable for more than 50kg

      Fast: 3-7 days

      High cost

      Port to port, 

      professional broker needed

    Suitable for more than 500kg

    Slow: 7-45 days

    Low cost

    Port to port, 

    professional broker needed




Stored in a cool and dry well-closed container. Keep away from moisture and strong light/heat.


Usually within3-5 working days after full payment.



DHL Express, FedEx and EMS for quantity less than 50KG, usually called as DDU service; 

Sea shipping for quantity over 500KG; And air shipping is available for 50KG above;

For high value products, please select air shipping and DHL express for safe;


we will try our best to satisfied you.
1. Tailor-made for every customers. 
2. Third-party test for the products you demand. 
3. Test your counter-samples and produce them for you. 
4. Best discount for old customers. 
















Packing Information


Package details:

1kg/Aluminum foil bag

1kg/ Aluminium Tin


25kg/ Aluminum Drum

Delivery Time: Usually within 2 working days after confirming the payment.

Shipping details:DHL; TNT; UPS or EMS





Company Information



Crovell Biotech (Hebei) Co., Ltd. was founded in 2007 , located in Shijiazhuang city which is the capital of Hebei Province and hub sector among Beijing Tianjin and Hebei and has advantage of convenient transportation . Our company is a modern high-tech chemical enterprise with Research & Development, production and sales.

Our company has strong technical strength, advanced equipment, strict quality management system and high-quality after-sales service, adhers to the "customer first and forge ahead" business philosophy and insists on integrity as the company's survival. All for the customers’ satisfaction, all for the long-term healthy development of the enterprise. In the past 10 more years, we have been strictly managing the whole trade process, focusing on every detail, providing customers with all-round services such as product purchase, R & D, quality control, logistics management and so on, and become  reliable cooperation company and partner for our clients. Nowadays We formed large varieties, large scale, complete categories, refined degree, added value and high technology content product chain .There are several series including pharmaceutical products, food grade additives, industrial grade, fertilizer grade and mineral products.




Chinese Astilbin supplier suppliers manufacturer factory  CAS 29838-67-3


In recent five years, the company has implemented the strategy of "going out" vigorously. We has established our branches in Hubei China, Vietnam and Mexico, making our market and sales network more and more perfect. Our company will continue to adhere to the strategic positioning of fine chemical industry in the future and competition ideas of irreplaceable product differentiation, and strive to become to the leading of Chinese chemical industry.




Our certificate


Hebei Guanlang Biotechnology Co., Ltd. at the NGV testing department on June 4, 2015, the NGV testing department approved GB/t24001-2004 / ISO14001:2004.

And in June 2016, TUV certification was passed.



Our Exhibition







Q1. Can I have a sample order for your products

A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

Q2. What about the lead time

A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than 

Q3. Do you have any MOQ limit for order

A: Low MOQ, 10-100g for sample checking is available

Q4. How do you ship the goods and how long does it take to arrive

A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.

Q5. How to proceed an order for your products

A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.

Q6. Is it OK to print my logo on package

A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.


Other products of this supplier

Hebei Guanlang Biotechnology Co., Ltd.Tel:+8619930503256 Fax:0311-6656-2153  Email:sales@crovellbio.com
 Address:No.108,ZhongShan West Road,050000