High Quality CEPHALEXIN MONOHYDRATE CAS NO.23325-78-2

 Qingdao Sigma Chemical Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, peptide,Nootropis etc API, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

 

Our Laboratory is located in shandong province. There are 15 experts in our research team. Talented personnel and well-equipped laboratory makes rigorous and professional quality control possible. Lyphar Biotech is equipped with various detection devices, such as HPLC, GC, Spectrophotometer, AAS, Polarimeter, Auto titrators, BOD Incubators, COD Incubators, Melting point apparatus and so on.

 

The aim of QDSIGMA 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.

 

QDSIGMA has become the "Top 500 Chinese manufacturing companies","Top 20 of global chemical sales".QDSIGMA has 21 subsidiaries and holding companies.

Product Name: Cephalexin monohydrate

 

Synonyms :Cephalexin [USAN:BAN]; Ceffanex; (6R,7R)-7-((R)-2-Amino-2-phenylacetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid monohydrate

 

Molecular Formula :C16H17N3O4S

 

Molecular Weight :347.3889

 

CAS Registry Number :23325-78-2

 

Density: 1.5g/cm3

 

Boiling point :727.4°C at 760 mmHg

 

Refractive index: 1.699

 

Flash point :393.7°C

 

Vapour Pressur :3.27E-22mmHg at 25°C

 

 

Test Item	Specification	Result
Appearance	White or almost white crystalline powder	White crystalline powder
Identification	Complies	Complies
PH	4.0~5.5	4.8
Water	4.0%~8.0%	5.60%
Specific Optical Rotation (anhydrous substance)	+149° ~+158°	+156.0°
Absorbance at 330nm	≤ 0.05	0.012
Absorbance at 262nm (anhydrous substance)	220-245	231.9
Assay(anhydrous substance)	95.0%~102.0%	99.8%
Related Substances Impurity B Any Other Impurity Total	≤ 1.0% ≤ 1.0% ≤ 3.0%	0.00 0.04 0.12
Sulphated Ash	≤ 0.2%	0.02%
N, N-Dimethylaniline	Not more than 20ppm	Not detected
Appending Item Bulk Density (g/ml) Tapped Density (g/ml)	---- ----	0.56 0.79
Conclusion: This batch complies with the specification