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Hangzhou Think Chemical Co. LtdGood quality 10-Methoxy-4H-benzo[4,5]cycloheta[1,2-b]thiophen-4-one for Ketotifen//www.lookchem.com/300w//2010/0623/59743-84-9.jpg

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Good quality 10-Methoxy-4H-benzo[4,5]cycloheta[1,2-b]thiophen-4-one for Ketotifen CAS NO.59743-84-9

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Min.Order Quantity:
1 Kilogram
Hangzhou or Shanghai
Payment Terms:
L/C,D/A,D/P,T/T,Western Union

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Product Details


  • Ketotifen Intermediate
  • Ketotifen Base
  • Ketotifen Fumarate

Quick Details

  • ProName: Good quality 10-Methoxy-4H-benzo[4,5]c...
  • CasNo: 59743-84-9
  • Molecular Formula: C14H10O2S
  • Appearance: detailed see specifications
  • Application: 10-Methoxy-4H-benzo[4,5]cycloheta[1,2-...
  • DeliveryTime: Check with us according to inquiry qua...
  • PackAge: Aluminium Foil Bag
  • Port: Hangzhou or Shanghai
  • ProductionCapacity: 1 Metric Ton/Month
  • Purity: 99%min
  • Storage: Stored in a cool and dry well-closed c...
  • Transportation: by air or sea
  • LimitNum: 1 Kilogram
  • Grade: Pharma Grade


Ketotifen Intermediate

Physical State: Crystalline powder

Appearance: yellow

Vapor Pressure: Not available.

Viscosity: Not available.

Boiling Point: Not available.

Autoignition Temperature: Not available.

Explosion Limits, lower: Not available.

Explosion Limits, upper: Not available.

Decomposition Temperature:

Water: Less than 0.5%

Specific Gravity/Density:

Molecular Formula: C14H10O2S

Molecular Weight: 242.3

HANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture.

With about ten years of business experiences on the marketing & distribution, thinkchem specializes in exporting pharmaceuticals, veterinary drugs, feed additives, intermediates, fine chemicals, plants extracts, pesticides, food & nutrition additives.

Thinkchem is good at offering excellent outsourcing services to overseas customers as well as laboratory support.

Custom manufacture

Thinkchem is good at offering contract manufacture and custom synthesis under confidential agreement timely and effectively, and providing sales service from grams ,kilograms to multi-tons particularly for pharmaceuticals and their intermediates discovery and development. Thinkchem is equipped with modern lab apparatus including HPLC, GC. TLC AND NMR, motivated by a team of highly qualified personnel using these equipments.


Thinkchem is composed of chemical technicians, analytical chemists, organic chemists, and chemical engineers educated in leading universities in china. Our staff is supported by a group of consultants from academia with expertise in chemical synthesis and analytical chemistry.



Product: 10-Methoxy-4H-benzo[4,5]cycloheta[1,2-b]thiophen-4-one[CAS:59743-84-9]

Ketotifen Intermediate

Batch No: 20161205

Manufacturing Date: Dec., 2016

Expiry Date: Dec., 2018

Analysis report number: 20161206

Quantity: 50 Kgs

Items Specifications Results

Appearance: yellow crystalline powder Complies

Identification: HPLC & IR Complies

Water(K.F.): 0.5%max. 0.23%

Purity(HPLC): 97.0%min. 98.68%

Single impurity: 1.0%max. 0.78%

Total impurities: 2.0%max. 1.32%

Conclusion:It Complies with the Enterprise’s Standard .

1. Well-trained professional sales team dedicated to source, audit and export.

2. Well-trained R & D team equipped with new knowledge, new ideas and new insights to support product development and innovation.

3. Well-established partnership with major pharmaceutical and chemical companies in china.

4. Wide range of products and efficient regulatory documentation offered to customers.

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