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Key Documents

A8351

Sigma-Aldrich

Ampicillin sodium salt

BioXtra, suitable for cell culture

Synonym(s):

D-(−)-α-Aminobenzylpenicillin sodium salt

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About This Item

Empirical Formula (Hill Notation):
C16H18N3NaO4S
CAS Number:
Molecular Weight:
371.39
Beilstein/REAXYS Number:
4119211
EC Number:
MDL number:
UNSPSC Code:
51281716
PubChem Substance ID:
NACRES:
NA.76

product line

BioXtra

Quality Level

form

powder

technique(s)

cell culture | mammalian: suitable

impurities

endotoxin, tested

color

white to off-white

mp

215 °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

[Na+].CC1(C)SC2[C@H](NC(=O)[C@H](N)c3ccccc3)C(=O)N2[C@H]1C([O-])=O

InChI

1S/C16H19N3O4S.Na/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);/q;+1/p-1/t9-,10-,11+,14-;/m1./s1

InChI key

KLOHDWPABZXLGI-YWUHCJSESA-M

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General description

Chemical structure: ß-lactam

Application

Ampicillin is a semi-synthetic derivative of penicillin that functions as a broad-spectrum antibiotic. It 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: This is a ß-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 ß-lactamase cleaves the ß-lactam ring of Ampicillin and inactivates it.

Antimicrobial Spectrum: Includes both gram-positive (similar to benzylpenicillin) and gram-negative bacteria (similar to tetracyclines and chloramphenicol.

Caution

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.

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

Keep container tightly closed in a dry and well-ventilated place, hygroscopic.

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1A - Skin Sens. 1A

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


Certificates of Analysis (COA)

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The aim of this study was to compare the effectiveness of the ampicillin plus ceftriaxone (AC) and ampicillin plus gentamicin (AG) combinations for treating Enterococcus faecalis infective endocarditis (EFIE). An observational, nonrandomized, comparative multicenter cohort study was conducted at 17
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