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About This Item
Empirical Formula (Hill Notation):
C16H19N3O4S
CAS Number:
Molecular Weight:
349.40
UNSPSC Code:
51281703
NACRES:
NA.85
PubChem Substance ID:
EC Number:
200-709-7
Beilstein/REAXYS Number:
1090925
MDL number:
assay
96.0-102.0% (anhydrous basis)
form
solid
pKa (25 °C)
2.5 (COOH), 7.3 (NH2)
mp
208 °C (dec.) (lit.)
antibiotic activity spectrum
Gram-negative bacteria, Gram-positive bacteria
mode of action
cell wall synthesis | interferes
storage temp.
2-8°C
SMILES string
[H][C@]12SC(C)(C)[C@@H](N1C(=O)[C@H]2NC(=O)[C@H](N)c3ccccc3)C(O)=O
InChI
1S/C16H19N3O4S/c1-16(2)11(15(22)23)19-13(21)10(14(19)24-16)18-12(20)9(17)8-6-4-3-5-7-8/h3-7,9-11,14H,17H2,1-2H3,(H,18,20)(H,22,23)/t9-,10-,11+,14-/m1/s1
InChI key
AVKUERGKIZMTKX-NJBDSQKTSA-N
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General description
Chemical structure: β-lactam
Application
Ampicillin has been used to study antibiotic resistance and penetration limitations, the synergy between multiple antibiotics, certain bloodstream infections, and has been used to develop PCR assays to detect resistance genes in cerebrospinal fluid.
Biochem/physiol Actions
Mode of Action: Ampicillin is a semisynthetic penicillin and a β-lactam antibiotic that inhibits bacterial cell-wall synthesis by inactivating transpeptidases on the inner surface of the bacterial cell membrane.
Mode of Resistance: Administration with β-lactamase cleaves the β-lactam ring of Ampicillin and inactivates it.
Antimicrobial Spectrum: Effective against both Gram-positive (similar to benzylpenicillin) and Gram-negative bacteria (similar to tetracyclines and chloramphenicol.
Mode of Resistance: Administration with β-lactamase cleaves the β-lactam ring of Ampicillin and inactivates it.
Antimicrobial Spectrum: Effective against both Gram-positive (similar to benzylpenicillin) and Gram-negative bacteria (similar to tetracyclines and chloramphenicol.
β-lactams are inactivated by β-lactamases and for this reason ampicillin is used with a β-lactamase inhibitor.
Preparation Note
Ampicillin is reported as slightly soluble in water, practically insoluble in alcohol, chloroform, ether and fixed oils but soluble in dilute acids or bases. The solution should not be autoclaved; a stock solution should be sterilized through filtration and stored frozen, where it will be stable for months.
Other Notes
Store under argon. Keep container tightly closed in a dry and well-ventilated place, hygroscopic.
Disclaimer
This product has been reported stable as supplied at 25°C at 43% and 81% relative humidity for six weeks. Additional studies have shown that the stability of Ampicillin in solution is a function of pH, temperature and the identity of the buffer. It′s activity is quickly lost when stored above pH 7. Optimal storage conditions are suggested as 2-8°C, and pH 3.8-5 where its activity was retained at 90%+ for a week.
signalword
Danger
hcodes
Hazard Classifications
Resp. Sens. 1 - Skin Sens. 1
Storage Class
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Comparative evaluation of a new beta-lactamase inhibitor, YTR 830, combined with different beta-lactam antibiotics against bacteria harboring known beta-lactamases.
Antimicrobial Agents and Chemotherapy, 29, 955-957 (1986)
Kenneth H Rand et al.
The Journal of antimicrobial chemotherapy, 53(3), 530-532 (2004-02-14)
We used a novel screening method to look for synergy between daptomycin and 18 other antibiotics against 19 strains of high-level vancomycin-resistant enterococci (VRE) (vancomycin MIC > or = 256 mg/L). In this approach, daptomycin was incorporated into Ca(2+)-supplemented Mueller-Hinton
Laurent Poirel et al.
Antimicrobial agents and chemotherapy, 52(5), 1613-1617 (2008-02-27)
The basis of the beta-lactam resistance of 39 multidrug-resistant Acinetobacter baumannii isolates recovered from hospitalized patients was studied. These isolates were collected from 2001 to 2005 at the Sahloul Hospital in Sousse, Tunisia. They belonged to two distinct clones. One
J N Anderl et al.
Antimicrobial agents and chemotherapy, 44(7), 1818-1824 (2000-06-20)
The penetration of two antibiotics, ampicillin and ciprofloxacin, through biofilms developed in an in vitro model system was investigated. The susceptibilities of biofilms and corresponding freely suspended bacteria to killing by the antibiotics were also measured. Biofilms of Klebsiella pneumoniae
F C Tenover et al.
Journal of clinical microbiology, 32(11), 2729-2737 (1994-11-01)
We developed PCR primers specific for the blaTEM and blaROB ampicillin resistance genes. The specificity of the primers was confirmed by testing a series of Escherichia coli isolates containing a variety of ampicillin resistance genes and a series of ampicillin-resistant
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| A9393-100G | 04061833689677 |
| A9393-25G | 04061835515752 |
| A9393-5G | 04061835505883 |
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