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HomeProduct name listCefapirin sodium

Cefapirin sodium

Synonym(s):3-[(Acetyloxy)methyl]-8-oxo-7-{(4-pyridinylthio)acetyl]amino}-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monosodium salt;Cefapirin sodium;Cephapirin sodium

  • CAS NO.:24356-60-3
  • Empirical Formula: C17H18N3NaO6S2
  • Molecular Weight: 447.46
  • MDL number: MFCD07793329
  • EINECS: 246-194-2
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-19 23:02:33
Cefapirin sodium Structural

What is Cefapirin sodium?

Description

Cephapirin sodium (Cefapirin sodium), a semisynthetic cephalosporin antibiotic, is bactericidal against strains of gram-positive and gram-negative bacteria.
Cephapirin is closely resembles cephalothin in chemical and pharmacokinetic properties. Cephapirin, have cephalosporanic acid core with the acetyloxymethyl group at the 3rd position and having IUPAC name (6R,7R)-3-(Acetoxymethy)-8- oxo-7-{[(pyridin-4-ylsulfanyl)acetyl]amino}-5-thia- 1-azabicyclo [4.2.0] oct-2-ene-2-carboxylic acid. It is unstable in acid and must be administered parenteral. It has similar mechanism as other cephalosporins. It is marketed under the trade name Cefadyl. It is effective against a wide variety of gram-positive and gramnegative bacteria; used as the sodium salt. Among the most serious adverse reactions of cefapirin, that is, neutropenia, leukopenia, anemia, bone marrowdepression, and allergic reactions, it has been discontinued in the United States (Wiesner, 1972).

Chemical properties

White or pale yellow powder.

Originator

Cefadyl,Bristol,US,1974

The Uses of Cefapirin sodium

Cefapirin sodium is very similar to cephalothin (Bran et al., 1972). Cephapirin is now used almost exclusively in veterinary practice.

What are the applications of Application

Cefapirin sodium is an antibacterial agent

Definition

ChEBI: Cephapirin sodium is the sodium salt of cephapirin. A first-generation cephalosporin antibiotic, it is effective against gram-negative and gram-positive organisms. Being more resistant to beta-lactamases than penicillins, it is effective agains most staphylococci, though not methicillin-resistant staphylococci. It has a role as an antibacterial drug. It is a cephalosporin and an organic sodium salt. It contains a cephapirin(1-).

What are the applications of Application

Cephapirin was synthesized by BristolMyers Laboratories in 1970. It shows almost the same in vitro antibacterial activity as cephalothin, but its in vivo effects are slightly greater than those of cephalothin. Like cephalothin, it is metabolized in vivo, and its deacetylated metabolite shows almost the same activity against gram-positive bacteria as cephalothin, but weaker activity against gramnegative bacteria. Cephapirin has been used for therapy of urinary tract infections and osteomyelitis caused by Staphylococcus, Streptococcus, and Escherichia coli.

brand name

Cefadyl (Apothecon), ToDAY

Therapeutic Function

Antibacterial

Synthesis

Cephapirin, (6R-trans)-3-[(acetyloxy)methyl]-8-oxo-7-[[(4-pyridinylthio) acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-en-2-carboxylic acid (32.1.2.4), is synthesized by acylating 7-aminocephalosporanic acid with 4-pyridylthioacetic acid chloride (32.1.2.3), which is synthesized by reacting 4-chloropyridine with mercaptoacetic acid in the presence of a base, forming 4-pyridylthioacetic acid (32.1.22), and further transforming the resulting acid to the acid chloride by reacting it with phosphorous pentachloride.
An alternative way of making cephapirin is the acylation of 7-aminocephalosporanic acid by bromoacetyl bromide, which gives a bromoacetyl derivative (32.1.2.5), and which is then reacted with 4-mercaptopyridine in the presence of triethylamine, forming the desired cephapirin (32.1.2.4).Synthesis_24356-60-3

Properties of Cefapirin sodium

Melting point: >177°C (dec.)
alpha  +152~+170゜(25℃/D)(c=2,H2O)(calculated on the dehydrous basis)
storage temp.  Inert atmosphere,2-8°C
solubility  Soluble in water, practically insoluble in methylene chloride.
form  powder
pka pKa 2.15 (Uncertain)
color  Light Beige to Beige
CAS DataBase Reference 24356-60-3(CAS DataBase Reference)

Safety information for Cefapirin sodium

Signal word Danger
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
GHS Hazard Statements H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H319:Serious eye damage/eye irritation
H334:Sensitisation, respiratory
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P284:Wear respiratory protection.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P342+P311:IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.

Computed Descriptors for Cefapirin sodium

InChIKey VGEOUKPOQQEQSX-OALZAMAHSA-M

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