Ceftriaxone

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Ceftriaxone
Category Antibiotics
Catalog number BBF-00750
CAS 73384-59-5
Molecular Weight 554.58
Molecular Formula C18H18N8O7S3
Purity >98%

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Description

It is produced by the strain of Semisynthetic third generation cephalosporin for injection. It has the third-generation cephalosporin commonness. It is characterized by a plasma elimination half-life of up to 7.1h, and one dose per day.

Specification

Related CAS 74578-69-1 (disodium salt) 104376-79-6 (disodium salt, hemiheptahydrate) 958633-51-7 (monosodium salt)
Synonyms 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[(2Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetyl]amino]-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-1,2,4-triazin-3-yl)thio]methyl]-, (6R,7R)-; (6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-(methoxyimino)acetyl]amino]-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-1,2,4-triazin-3-yl)thio]methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[(2-amino-4-thiazolyl)(methoxyimino)acetyl]amino]-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-1,2,4-triazin-3-yl)thio]methyl]-, [6R-[6α,7β(Z)]]-; Biotrakson; Epicephin; Rocefin; Rocephalin; Rophex
Storage Store at -20 °C, under inert atmosphere
IUPAC Name (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-methoxyiminoacetyl]amino]-3-[(2-methyl-5,6-dioxo-1H-1,2,4-triazin-3-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Canonical SMILES CN1C(=NC(=O)C(=O)N1)SCC2=C(N3C(C(C3=O)NC(=O)C(=NOC)C4=CSC(=N4)N)SC2)C(=O)O
InChI InChI=1S/C18H18N8O7S3/c1-25-18(22-12(28)13(29)23-25)36-4-6-3-34-15-9(14(30)26(15)10(6)16(31)32)21-11(27)8(24-33-2)7-5-35-17(19)20-7/h5,9,15H,3-4H2,1-2H3,(H2,19,20)(H,21,27)(H,23,29)(H,31,32)/b24-8-/t9-,15-/m1/s1
InChI Key VAAUVRVFOQPIGI-SPQHTLEESA-N

Properties

Appearance Off-white to Pale Yellow Solid
Melting Point >189 °C (dec.)
Density 1.96±0.1 g/cm3 (Predicted)
Solubility Soluble in DMSO (Slightly), Methanol (Slightly)
LogP -1.7

Toxicity

Carcinogenicity No indication of carcinogenicity to humans (not listed by IARC).
Mechanism Of Toxicity Ceftriaxone works by inhibiting the mucopeptide synthesis in the bacterial cell wall. The beta-lactam moiety of Ceftriaxone binds to carboxypeptidases, endopeptidases, and transpeptidases in the bacterial cytoplasmic membrane. These enzymes are involved in cell-wall synthesis and cell division. By binding to these enzymes, Ceftriaxone results in the formation of of defective cell walls and cell death.
Toxicity LD50: >10 000 mg/kg (Oral, Rat).

Reference Reading

1.Synthetic cathinone MDPV downregulates glutamate transporter subtype I (GLT-1) and produces rewarding and locomotor-activating effects that are reduced by a GLT-1 activator.
Gregg RA1, Hicks C1, Nayak SU1, Tallarida CS1, Nucero P1, Reitz AB2, Smith GR2, Rawls SM3. Neuropharmacology. 2016 Apr 13. pii: S0028-3908(16)30154-X. doi: 10.1016/j.neuropharm.2016.04.014. [Epub ahead of print]
Synthetic cathinones produce dysregulation of monoamine systems, but their effects on the glutamate system and the influence of glutamate on behavioral effects related to cathinone abuse are unknown. A principal regulator of glutamate homeostasis is glutamate transporter subtype 1 (GLT-1), an astrocytic protein that clears glutamate from the extracellular space and influences behavioral effects of established psychostimulants. We hypothesized that repeated administration of the synthetic cathinone, MDPV (3,4-methylenedioxypyrovalerone), would affect GLT-1 expression in the corticolimbic circuit, and that a GLT-1 activator (ceftriaxone, CTX) would reduce rewarding and locomotor-stimulant effects of MDPV in rats. GLT-1 protein expression in the nucleus accumbens (NAcc), but not prefrontal cortex (PFC), was decreased following withdrawal (2, 5 and 10 days) from repeated MDPV treatment, but not immediately after the last MDPV injection. CTX (200 mg/kg) pretreatment did not affect acute locomotor activation produced by MDPV (0.
2.Old but not forgotten: Antibiotic allergies in General Medicine (the AGM Study).
Trubiano JA1, Pai Mangalore R2, Baey YW3, Le D2, Graudins LV4, Charles PG2, Johnson DF2, Aung AK4. Med J Aust. 2016 Apr 18;204(7):273.
OBJECTIVES: To determine the nature, prevalence and description accuracy of recorded antibiotic allergy labels (AALs) in a cohort of general medical inpatients, and to assess the feasibility of an oral antibiotic re-challenge study.
3.Azithromycin-resistant Neisseria gonorrhoeae isolates in Guangzhou, China (2009-2013): coevolution with decreased susceptibilities to ceftriaxone and genetic characteristics.
Liang JY1,2, Cao WL1,2, Li XD1,2, Bi C1,2, Yang RD1,2, Liang YH1,2, Li P1,2, Ye XD1,2, Chen XX1,2, Zhang XB3,4. BMC Infect Dis. 2016 Apr 14;16(1):152. doi: 10.1186/s12879-016-1469-3.
BACKGROUND: The recent emergence of azithromycin-resistant (AZM-R) N. gonorrhoeae isolates that have coevolved decreased susceptibility to extended-spectrum cephalosporins has caused great concern. Here we investigated the prevalence of decreased susceptibility to ceftriaxone (CRO(D)) in AZM-R isolates and genetically characterized AZM-R isolates in Guangzhou, China from 2009 to 2013.

Spectrum

Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive

Experimental Conditions

Ionization Mode: Positive
Ionization Energy: 70 eV
Chromatography Type: Gas Chromatography Column (GC)
Instrument Type: Single quadrupole, spectrum predicted by CFM-ID(EI)
Mass Resolution: 0.0001 Da
Molecular Formula: C18H18N8O7S3
Molecular Weight (Monoisotopic Mass): 554.0461 Da
Molecular Weight (Avergae Mass): 554.58 Da

Predicted LC-MS/MS Spectrum - 10V, Positive

Experimental Conditions

Ionization Mode: Positive
Collision Energy: 10 eV
Instrument Type: QTOF (generic), spectrum predicted by CFM-ID
Mass Resolution: 0.0001 Da
Molecular Formula: C18H18N8O7S3
Molecular Weight (Monoisotopic Mass): 554.0461 Da
Molecular Weight (Avergae Mass): 554.58 Da

1H NMR Spectrum

Experimental Conditions

Solvent: D2O
Nucleus: 1H
Frequency: 100

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