CEFALEXIN

CEFALEXIN

PRODUCT IDENTIFICATION

CAS NO.

15686-71-2 (Parent)
23325-78-2 (monohydrate)

CEFALEXIN

EINECS NO.

239-773-6

FORMULA

C₁₆H₁₇N₃O₄S

MOL WT.

347.39

H.S. CODE

TOXICITY

SYNONYMS

Cefanex; Cephalexin; C-Lexin; Ibilex; Keflet; Keflex;

7-(D-alpha-amino-alpha-phenylacetamido)-3-methyl-3-cephem-4-carboxylic acid;

CLASSIFICATION

ANTIBOITICS / CEPHALOSPORINS /

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

white to off-white powder

MELTING POINT

BOILING POINT

SPECIFIC GRAVITY

SOLUBILITY IN WATER

VAPOR DENSITY

AUTOIGNITION

NFPA RATINGS

REFRACTIVE INDEX

FLASH POINT

STABILITY

Stable under ordinary conditions

GENERAL DESCRIPTION & APPLICATIONS

Cefalexin is a semisynthetic 1st generation cephalosporin antibiotic Inhibiting cell wall biosynthesis. It is used especially in the treatment of respiratory and urinary tract infections and is intended for oral administration. Cephalosporins differ from penicillins in the structure of the bicyclic ring system. Cefalexin has an unsubstituted methyl group at the 3-position and a D-phenylglycyl group as substituent at the 7-amino position. It's chemical name is 7-(D-alpha-Amino- alpha-phenyl acetamido)- 3-methyl-3-cephem- 4-carboxylic acid. Commercial cefalexin is available in a monohydrate form which is a white crystalline powder with a bitter taste and low solubility in water.

1ST GENERATION CEPHALOSPORIN	CAS RN
Cefacetrile	10206-21-0
Cefacetrile sodium	23239-41-0
Cefadroxil Monohydrate	66592-87-8
Cefadroxil anhydrous	50370-12-2
Cefalexin	15686-71-2; 23325-78-2
Pivcefalexin hydrochloride	27726-31-4
Pivcefalexin	63836-75-9
Cefacetrile	10206-21-0
Cefaloglycin	3577-01-3; 22202-75-1
Deacetylcefaloglycin	3890-34-4
Cefalonium	5575-21-3
Cefaloridine	50-59-9
Cefalotin Sodium	58-71-9
Cefalotin	153-61-7
Cefapirin Sodium	24356-60-3
Cefapirin	21593-23-7
Cefatrizine	51627-14-6
Cefazaflur sodium	52123-49-6
Cefazaflur	58665-96-6
Cefazedone	56187-47-4
Cefazedone sodium	63521-15-3
Cefazedone	56187-47-4
Cefazolin Sodium	27164-46-1
Cefazolin delta-2-methyl ester	79239-19-3
Cefazolin delta-3-methyl ester	117929-10-9
Cefazolin	25953-19-9
Cefradine	38821-53-3
Cefroxadine dihydrate	95615-72-8
Cefroxadine	51762-05-1
Ceftezole sodium	41136-22-5
Ceftezole	26973-24-0

SALES SPECIFICATION (USP, BP)

APPEARANCE

white crystalline powder

CONTENT

99.0 - 101.0% (On dry basis)

WATER

4.0 - 4.5%

ABSORBANCE

262 nm: 220 - 245, 330 nm: < 0.05

7-ADCA

0.5% max

TRANSPORTATION

PACKING

HAZARD CLASS

UN NO.

OTHER INFORMATION

SHELF-LIFE: 5 years
Price: