64485-93-4 Usage
Brand Name(s) in US
Claforan
Chemical Properties
White to pale yellow crystalline powder
Originator
Claforan,Hoechst-Roussel,W. Germany,1980
Uses
Different sources of media describe the Uses of 64485-93-4 differently. You can refer to the following data:
1. Broad spectrum third generation cephalosporin antibiotic. The name Cefotaxime applies to the isomer having a syn-methoxy imino group
2. Cephalosporin antibacterial
3. Cefotaxime sodium salt acts as a beta-lactamase resistant antibiotic. It is used as an effective antibacterial against gram-negative bacteria, with the notable exception of pseudomonas and penicillin-resistant strains of streptococcus pneumoniae. It is used to treat infections of the bones, joints, skin, respiratory tract and blood stream.
Definition
ChEBI: A cephalosporin organic sodium salt having acetoxymethyl and [2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino side-groups.
Manufacturing Process
A solution of 8 g of sodium bicarbonate in about 20 ml of ethanol was
progressively added to 45.55 g of pure 3-acetoxymethyl-7-[2-(2-amino-4-
thiazolyl)-2-methoxyiminoacetamido]-ceph-3-eme-4-carboxylic acid in 100 ml
of distilled water and another 80 ml of ethanol and 4.5 g of activated carbon
were added thereto. The mixture was stirred for 5 minutes and was filtered.
The filter was rinsed with ethanol and the filtrate was evaporated to dryness
under reduced pressure. The residue was taken up in 100 ml of ethanol and
evaporated to dryness again. The residue was dissolved in 100 ml of methanol
and the solution was poured into 2 l of acetone. The mixture was vigorously
stirred and was vacuum filtered. The recovered product was rinsed with
acetone and then ether and dried under reduced pressure to obtain 43.7 g of
a white product which rehydrated in air to obtain a final weight of 45.2 g of
sodium 3-acetoxymethyl-7-[2-(2-amino-4-thiazolyl)-2-
methoxyiminoacetamido]-ceph-3-eme-4-carboxylate.
Brand name
Claforan
(Sanofi Aventis).
Therapeutic Function
Antibiotic
General Description
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
Biological Activity
mic: <0.1 μg/ml for s. pneumoniaecefotaxime is a cephalosporin antibiotic.the cephalosporins, a class of β-lactam antibiotics originally derived from the fungus acremonium, are indicated for the prophylaxis and treatment of infections caused by bacteria susceptible to this particular form of antibiotic.
Biochem/physiol Actions
Cefotaxim inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs) which inhibits the final transpeptidation step of peptidoglycan synthesis in bacterial cell walls. As a result, bacteria lyse due to cell wall autolytic enzymes.
Clinical Use
Cefotaxime (Claforan) was the first third-generationcephalosporin to be introduced. It possesses excellentbroad-spectrum activity against Gram-positive and Gramnegativeaerobic and anaerobic bacteria. It is more activethan moxalactam against Gram-positive organisms. Manyβ-lactamase–producing bacterial strains are sensitive to cefotaxime,including N. gonorrhoeae, Klebsiella spp., H. influenzae,S. aureus, and E. cloacae. Some, but not all,Pseudomonas strains are sensitive. Enterococci and Listeriamonocytogenes are resistant.The syn-isomer of cefotaxime is significantly more activethan the anti-isomer against β-lactamase–producing bacteria.This potency difference is, in part, because of greaterresistance of the syn-isomer to the action of β-lactamases.The higher affinity of the syn-isomer for PBPs, however,may also be a factor.Cefotaxime is metabolized in part to the less active desacetylmetabolite. Approximately 20% of the metaboliteand 25% of the parent drug are excreted in the urine. Theparent drug reaches the cerebrospinal fluid in sufficient concentrationto be effective in the treatment of meningitis.Solutions of cefotaxime sodium should be used within 24hours. If stored, they should be refrigerated. Refrigerated solutionsmaintain potency up to 10 days.
Veterinary Drugs and Treatments
In the United States, there are no cefotaxime products approved
for veterinary species but it has been used clinically in several
species when an injectable 3rd generation cephalosporin may be
indicated.
in vitro
previous studies found that the in-vitro activity of cefotaxime against staphylococcus au reus has ranged from 0.8 g to 8 μg/ml with 50% of isolates inhibited by 2 μg/ml and 90% by 4 μg/ml. moreover, it was found that methicillin resistant s. aureus were resistant to cefotaxime with mic values above 64 μg/ml. the cefotaxime mics against s. pneumoniae were found to be below 0.1 μg/ml, with 90% inhibited by 0.04 μg/ml. cefotaxime has also been shown to have excellent activity against haemophilus injluenzae, such as β-lactamase-containing strains [1].
in vivo
an in-vivo study with the mouse model of vibrio vulnificus infection was conducted to evaluate the efficacies of therapy with minocycline or cefotaxime alone and in combination. results indicated that combination therapy with cefotaxime and minocycline was distinctly more advantageous than therapy with the single antibiotic regimen for the treatment of severe vibrio vulnificus infections [2].
references
[1] neu hc. the in vitro activity, human pharmacology, and clinical effectiveness of new beta-lactam antibiotics. annu rev pharmacol toxicol. 1982;22:599-642.[2] chuang yc, ko wc, wang st, liu jw, kuo cf, wu jj, huang ky. minocycline and cefotaxime in the treatment of experimental murine vibrio vulnificus infection. antimicrob agents chemother. 1998 jun;42(6):1319-22.[3] schleupner cj, engle jc. clinical evaluation of cefotaxime for therapy of lower respiratory tract infections. antimicrob agents chemother. 1982 feb;21(2):327-33.
Check Digit Verification of cas no
The CAS Registry Mumber 64485-93-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,4,8 and 5 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 64485-93:
(7*6)+(6*4)+(5*4)+(4*8)+(3*5)+(2*9)+(1*3)=154
154 % 10 = 4
So 64485-93-4 is a valid CAS Registry Number.
InChI:InChI=1/C16H17N5O7S2.Na/c1-6(22)28-3-7-4-29-14-10(13(24)21(14)11(7)15(25)26)19-12(23)9(20-27-2)8-5-30-16(17)18-8;/h5,10,14H,3-4H2,1-2H3,(H2,17,18)(H,19,23)(H,25,26);/q;+1/b20-9+;/t10-,14-;/m1./s1
64485-93-4Relevant articles and documents
Cefotaxime sodium pharmaceutical preparation, and application thereof in treatment of new salmonella infection indications including typhoid and paratyphoid
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Paragraph 0169-0189, (2020/09/20)
The invention provides a cefotaxime sodium, and a preparation method, a cefotaxime sodium preparation and application thereof. The mass content of the cefotaxime sodium is 98% or above, and the cefotaxime sodium also comprises impurities A, B and C. The preparation method comprises the following steps: firstly, reacting methoxyiminoacetic acid with an activating agent to obtain an active ester intermediate; reacting 7-ACA with the active ester intermediate under a temperature control condition, and performing acid regulation and crystallization to obtain cefotaxime acid; carrying out a salifying reaction on cefotaxime acid and a salifying agent in a salifying solvent, and separating out to obtain the cefotaxime sodium. The cefotaxime sodium is low in impurity content, beneficial to long-term storage and placement, good in quality stability and better in clinical curative effect and safety, and can be used for treating salmonella infections including typhoid and paratyphoid.
1/4 water cefotaxime sodium compound
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Paragraph 0035; 0044; 0053, (2019/01/17)
The invention discloses a 1/4 water cefotaxime sodium compound and a preparation method thereof. The cefotaxime sodium per mole contains 1/4 mole of water. The 1/4 water cefotaxime sodium compound obtained has good particle size distribution, good fluidity, low impurity content, thermodynamic stability and wide application prospects.
A method for preparing Cefotaxime
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Paragraph 0030; 0031, (2017/06/20)
The invention discloses a preparation method of cefotaxime sodium. Ceftizoxime acid used as the initial raw material reacts with anhydrous sodium acetate to generate the cefotaxime sodium. In such process, purified water, butanol and acetone are selected as crystallizing solvents to control the mixing speed and crystallization temperature in the crystallization process, so that the finally obtained cefotaxime sodium has favorable flowability and can satisfy the subpackaging requirements in production. Various quality indexes of the obtained cefotaxime sodium conform to the requirements for medicinal standard, and thus, the cefotaxime sodium can satisfy the demands for clinical application.
