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High Quality USP/EP/BP GMP DMF FDA Neomycin Eye Ointment CAS NO 1404-04-2 Producer

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Price: $ 0.08 / pcs
min order: 1 pcs
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  • Quantity Price
  • 1 $0.5
  • 10000 $0.2
  • 100000 $0.1
  • 300000 $0.08
  • AZ541
  • Dideu
  • 1404-04-2
  • C23H52N6O25S3
  • 215-766-3
  • China
  • Neomycin Eye Ointment
  • High quality
  • 99.0% Min
  • 99%-101%
  • Cream
  • Solubility in water
  • 1.0% max
  • 0.5% Max
  • 10 ppm Max
  • H-NMR
  • 0.5% Max
  • Medicine

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Neomycin Eye Ointment 

Action and use

Aminoglycoside antibacterial.


Neomycin Eye Ointment is a sterile preparation containing Neomycin Sulphate in a suitable basis.

The eye ointment complies with the requirements stated under Eye Preparations and with the following requirements.


Carry out the method for thin-layer chromatography, Appendix III A, using a silica gel precoated plate (Merck silica gel 60 plates are suitable) and a mixture of 20  volumes of chloroform, 40  volumes of 13.5m ammonia and 60  volumes of methanol as the mobile phase. Apply separately to the plate 1 µl of each of the following solutions. For solution (1) disperse a quantity of the eye ointment containing 14,000  IU in 100  ml of chloroform, extract with 5  ml of water and use the aqueous extract. Solution (2) contains 0.4% w/v of neomycin sulphate EPCRS in water. Solution (3) is a mixture of equal volumes of solutions (1) and (2). After removal of the plate, allow it to dry in air, spray with a 1% w/v solution of ninhydrin in butan-1-ol and heat at 105° for 2  minutes. The principal red spot in the chromatogram obtained with solution (1) corresponds to that in the chromatogram obtained with solution (2) and the principal red spot in the chromatogram obtained with solution (3) appears as a single spot.



Carry out the method for thin-layer chromatography, Appendix III A, using silica gel H as the coating substance and a freshly prepared 3.85% w/v solution of ammonium acetate as the mobile phase. Apply separately to the plate 2 µl of each of the following solutions. For solution (1) disperse a quantity containing 14,000  IU in 20  ml of chloroform, shake gently with 8  ml of water, allow the layers to separate and use the aqueous layer. Solution (2) contains 0.005% w/v of neamine EPCRS. After removal of the plate, dry it in a current of warm air, heat at 110° for 10  minutes and spray the hot plate with a solution prepared immediately before use by diluting sodium hypochlorite solution with water to contain 0.5% w/v of available chlorine. Dry in a current of cold air until a sprayed area of the plate below the line of application gives not more than a very faint blue colour with one drop of a 0.5% w/v solution of potassium iodide in starch mucilage; avoid prolonged exposure to cold air. Spray the plate with a 0.5% w/v solution of potassium iodide in starch mucilage. Any spot corresponding to neamine in the chromatogram obtained with solution (1) is not more intense than the spot in the chromatogram obtained with solution (2).

Neomycin C

Complies with the test described under Neomycin Eye Drops but preparing solution (2) in the following manner. Disperse a quantity of the eye ointment containing 3500  IU in 20  ml of petroleum spirit (boiling range, 120° to 160°), add 5  ml of 0.02m sodium tetraborate, shake, separate the aqueous layer and centrifuge; proceed as for solution (1) but using 0.5  ml of the separated aqueous layer in place of 0.5  ml of the neomycin sulphate solution.


Dissolve a quantity containing 3500  IU in 25  ml of chloroform, extract with four 20  ml quantities of sterile phosphate buffer pH 8.0, combine the extracts and add sufficient of the buffer solution to produce 100  ml. Carry out the microbiological assay of antibiotics, Appendix XIV A. The precision of the assay is such that the fiducial limits of error are not less than 95% and not more than 105% of the estimated potency. The upper fiducial limit of error is not less than 90.0% and the lower fiducial limit of error is not more than 115.0% of the stated number of IU per g.


The strength is stated as the number of IU (Units) per g.

The packaging can be customized. the shipping term can be by sea, by air, and sample or small quantity can be shipped by DHL, FEDEX, EMS and TNT.

Cream 9Cream 11Cream 86

a) Free sample can be supplied.

b) Guide our clients by professional knowledge and teach them how to use our product after sales.

c) Accept SGS,BV any other third-party inspection before loading.

d) High quality best price Guaranteed.

Why do you choose Dideu Industries as your partner?

A) High quality can be guaranteed. Dideu Industries since 1975 are reputed chemical manufacturer and are Certified by ISO 9001;2015 and have GMP certification.Free sample can be arranged before shipment and SGS,BV and other third party inspection company are accepted before loading.For regular customers, we accept L/C 180 Days, D/P,D/A payment term. If there is any quality problem after goods arrive. Dideu Industries will do fully payment refund.

B) Best price can be guaranteed. As Dideu Industries are integrated pharmaceuticals and chemicals producer, the production cost can be controlled and price will be definitely more competitive than China trading companies.

C) Professional enginners from Dideu Industries will give professional usage guide and services after sales.

D)Dideu Industries work 7×24 hours and your request will be processed by our professional staff in different shift period.

Dideu Industries is one of the largest producer for general chemical, pharmaceutical, nutrition additive, natural extracts, agrochemical and Daily-Use Chemical in China and is headquartered in Shaanxi, China. The Dideu Group comprises subsidiaries and joint ventures in more than 10 countries and operates six integrated production sites and 21 other production sites in Europe, Asia, Australia, Americas and Africa.Its headquarters is located in Xi’An,China. Dideu has customers in over 200 countries and supplies products to a wide variety of industries.

At the end of 2014, the company employed more than 13000 people. In 2014, Group Dideu posted sales of 30 billion and income from operations before special items of about 7.5 billion. The company is currently expanding its international activities with a particular focus on Asia countries. Between 1990 and 2005, the company invested 5.2 billion in Asia, for example in sites near Guangxi,Yunnan, Sichuan, Shaanxi China,Mangalore in India,Bangkok, Thailand,Hanoi, Vietnam etc.

Dideu Industries Consist Of Five Industry Chains:

I)Pharmaceutical Industries

II)Nutrition Additive Industries

III)Daily-Use Chemical Products Industries & Agrochemicals

IV)Environmental Friendly Chemical And Chemurgy Industries

V)Petrochemical Industries

VI)General Chemical Industry

At Dideu, we redefine chemistry to make the world better - and have been doing so for 75 years. As one of the world's leading chemical company, we combine economic success with environmental protection and social responsibility.Through science and innovation we enable our customers in nearly every industry to meet the current and future needs of society.

At Dideu, we create chemistry for a sustainable future with science for a better life.Dideu is a Life Science company with a long and glorious history and core competencies in the areas of health care and agriculture. With our innovative products, we are contributing to finding solutions to some of the major challenges of our time. The growing and increasingly aging world population requires improved medical care and an adequate supply of food. Dideu is improving people's quality of life by preventing, alleviating and treating diseases. And we are helping to provide a reliable supply of high quality food, feed and plant based raw materials.We develop new molecules for use in innovative products and solutions to improve health. Our research and development activities are based on a profound understanding of the biochemical processes in living organisms.Our goal is to achieve and sustain leadership positions in our markets, thus creating value for our customers, stockholders and employees. To this end, our strategy is designed to help solve some of the most pressing challenges facing humankind, and by doing this exceptionally well we aim to strengthen the company's earning power. 

We are committed to operating sustainably and addressing our social and ethical responsibilities as a corporate citizen, while at the same time respecting the interests of all our stakeholders. Employees with a passion for innovation enjoy excellent development opportunities at Dideu.Exclusive Focus on the Life Science BusinessesFollowing the economic and legal independence of our former Material Science subgroup.Dideu has charted the course for its successful development as a Life Science company. Our Life Science businesses hold leading positions in innovation driven growth markets. Together they make up a strong, attractive and balanced portfolio that is resistant to fluctuations in demand and to potential risks.The previous structure comprising a strategic management holding company and operational subgroups has thus been replaced by an integrated organization under the umbrella of the strong Dideu brand. The company's operations are managed in three divisions Pharmaceuticals, Consumer Health and Crop Science and the Animal Health business unit.The business continues to be supported by the corporate functions, Dideu Business Services and the service company Currenta, while Technology Services is being integrated into Dideu Group, forming the Engineering and Technology function.

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