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Home > Products > API > Cefalexin,CAS No.:15686-71-2 Cephalexin,Cephalosporins

Cefalexin,CAS No.:15686-71-2 Cephalexin,Cephalosporins

Basic Info

Model No.: Top Grade

Product Description

Cefalexin,CAS No.:15686-71-2 Cephalexin,Cephalosporins

Product Description

Cephalexin Hydrate is a semi-synthetic, cephalosporin antibiotic. it is a first generation cephalosporin. The compound is most effective against gram positive cocci and has moderate activity against some gram negative bacilli.


Test Items
Specification Test Result
Appearance White or almost white,crystalline powder  White crystalline powder 
Solubility  Sparingly soluble in water, practically insoluble in ethanol(96%) Conform
Identification IR spectrum should match with that of standard Conform
PH 4.0~5.5 4.8
Water 4.0%~8.0%, determined on 0.300g 5.80%
Specific Optical Rotation +149°~+158° ( anhydrous substance ) +152°
Assay 95.0%~102.0% of C16H17N3O4S 100.20%
( anhydrous substance)
Related Substances
Impurity B ≤1.0% (compared to the area of the 2nd peak) <1.0%
Any Other Impurity ≤1.0% (compared to the area of the 1st peak) <1.0%
Total impurity ≤3.0% <3.0%
Sulphated Ash ≤0.2%, determined on 1.0g <0.1%
N, N-Dimethylaniline Not more than 20 ppm Not used in process
Appending Item
Tapped Density (g/ml) —— 0.93g/ml
Conclusion : This product complies as per above specifications.

Function and Application

As cephalexin (cefalexin)is only effective against certain types of bacterial infection your doctor may perform tests to identify the organisms causing the infection before beginning treatment. 

Cephalexin (cefalexin) may also be used for other purposes not listed here. 

Cephalexin (cefalexin) is available in capsule, tablet, and liquid forms. 

Packing and Storage

1kg with double plastic container inside/Aluminum foil bag ;
25kg with double plastic container inside/Fiber drum outside.Or as your request.
Shipped in 3 days after payment.
1.Stored in a cool and dry well-closed container and in ventilated area.
2.kept away from moisture and strong light or high temperature.
3.Two years under well storage situation and stored away from direct sun light.




 Xi’an Wharton Bio-Tech Co.,Ltd  is a national key high-tech enter prise,which mainly specializes in the R&D,operation and production of pharmaceutical APIs and intermediates.Our company is situated in E&T development zone,xi’an city shaanxi,it is easy of access.Our company has independent R&D center,raw material synthesis workshop,has advanced quality instruments and equipmentm,several product patents there are 15 experts in our research team.We insist in innovation and produce high quality products.we have GMP standard workshop and complete equipment.the superior product qualityis guaranteed by 300,000 level air-conditioning clear system within purification drying and packing procedures.we have 2 sales department over 30 people and sell our products all over the world.we also have strong professional research and development team,talented personnel and completely equipped laboratory for quality controlling.Various detection device is equipped in Wharton such as HPLC,GS,Spectrophotometer,AAS,Polarimeter,Auto titrators,BOD Incubators,COD Incubators,Melting point apparatus and so on.

Our Service


---------------------------------------------------------------------------------------------------------------------------------------------------------------------1. All inquiries will be replied within 12 hours.


2. Dedication to quality, supply & service.


3. Strictly on selecting raw materials.


4. OEM/ODM Available.


5. Reasonable & competitive price, fast lead time.


6. Sample is available for your evaluation & Formulation development.


7. Faster delivery:Sample order in stock and 3-7 days for bulk production.


8.We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder


9. After-Sale Service:


1) International Authorized Third-Party Test For The Products You Demand.


2) 30 Days Warranty of quality of goods. 


Our Advantage



 FAQ ------------------------------------------------------------------------------------------------------------------------


1.Are you a manufacturer or trade company?


We are a professional manufacturer.


2.What products your company specialize in?
We specialize in Vitamin B12(Cyanocobalamin), Coenzyme Q10 , Nicotinamide Riboside , Scopolamine Butylbromide , Vitamin B1 ,Vitamin B6 , Vitamin B9(folic acid) , Vitamin k2 mk7 ,Hyaluronic Acid.


3.What’s your payment terms?
Standard terms: T/T in advance and Western Union.
Also L/C at sight is acceptable for large amount.


4.What’s the warranty service do you offer?
We offer 24 month warranty for all our products.


 5.How do you ensure monthhigh quality of your products?

Strict QC with 6 steps testing from raw material purchase to finished product.


 6.How do you ship the order normally?

For large qty order,ship the goods by sea.
For small qty order, by air or express. We supply optional express for you, includingDHL,FEDEX,UPS,TXT,EMS,ARAMES and so on.


  Send your Inquiry Details in the Below, Click "   Send " Now!



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