Manufacturer high quality Ketotifen fumarate with best price 34580-14-8



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Manufacturer high quality Ketotifen fumarate with best price 34580-14-8
Manufacturer high quality Ketotifen fumarate with best price 34580-14-8
Manufacturer high quality Ketotifen fumarate with best price 34580-14-8
Manufacturer high quality Ketotifen fumarate with best price 34580-14-8
Manufacturer high quality Ketotifen fumarate with best price 34580-14-8
Manufacturer high quality Ketotifen fumarate with best price 34580-14-8
Manufacturer high quality Ketotifen fumarate with best price 34580-14-8

Manufacturer high quality Ketotifen fumarate with best price 34580-14-8

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From $666.70 / Kilogram
You save $ -666.70
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If over 500pcs, mass production will start until pre-production sample has been approved.

Est. 7 days production

Product Description


    Product Description

Product Name: Ketotifen fumarate
English name: 10- (1-methylpiperidin-4-ylidene) -5H-benzo [1,2] cyclohepta [3,4-b] thiophen-4-one
CAS Number: 34580-13-7
Molecular formula: C19H19NOS
Molecular weight: 309.42500


Ketotifen fumarate is a first-generation noncompetitive H1-antihistamine and mast cell stabilizer. It is most commonly sold as a salt with fumaric acid, ketotifen fumarate, and is available in two forms. In its ophthalmic form, it is used to treat allergic conjunctivitis.In its oral form, it is used to prevent asthma attacks or Anaphylaxis, as well as various mast cell, allergic-type disorders.

   Certification of Analysis



Characters:White to brownish-yellow,fine,crystalline powder.
IR spectrum
Solubility:Sparingly soluble in water,slightly soluble in methanol,very slightly soluble in acetonifrile
Clarity and colour of solution:Clear and not more than Y4,BY4,B4
Loss on drying:Not more than 0.5%
Sulphated ash:Not more than 0.1%
Related substances(HPLC) 
      Impurity A:Not more than 0.2%
      Impurity G:Not more than 0.2%
      Single unknown impurity:Not more than 0.10%
      Total impurities:Not more than 0.5%
Residual solvents:

Acetone ≤5000PPM                                                   

Methanol ≤500PPM

Assay (potentiometic titration) Calculated on the dried basisBetween 98.5% and 101.0%





 It is widely used in a variety of IgE-mediated allergic diseases, including bronchial asthma, asthmatic bronchitis, allergic cough, allergic rhinitis, allergic pollen, allergic conjunctivitis, acute or chronic urticaria, ectopic Dermatitis, contact dermatitis, photosensitive dermatitis, food allergies, drug allergy, insect allergies and so on. For the immune complex caused by vasculitis type lesions such as allergic purpura also have a certain effect.

Our Advantages
1.Competitive price
2.Fast Delivery Within 3 days
3.SGS,BV,GMP,ISO approve
4.Professional factory




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Our Services


Company Information
Qingdao Xigema Chemical Co., Ltd is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

The aim of Xigema is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.

Xigema has become the "Top 500 Chinese manufacturing companies","Top 20 of global chemical sales".Xigema has 21 subsidiaries and holding companies.
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Q1: Are you a manufacturer?
Answer: Yes, we are factory founded on 2002.
Q2: How to contact with us?
Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.
Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account
Q4:Can you give me a discount price?
Surely,It depend on your qty
Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q6: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q7:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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