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Ampicillin sodium

A β-lactam antibiotic and useful selective agent
Catalog #: 2484
SKU-Size Size Price Qty
2484-5G 5 g
2484-25G 25 g
2484-100G 100 g
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Product Details

Alternate Name D-(−)-α-Aminobenzylpenicillin sodium
Appearance White solid with a yellow tinge
CAS # 69-52-3
Molecular Formula C₁₆H₁₈N₃NaO₄S
Molecular Weight 371.39
Purity 91.00-100.5%
Solubility H₂O (~50 mg/ml)
SMILES CC1(C(N2C(S1)C(C2=O)NC(=O)C(C3=CC=CC=C3)N)C(=O)[O-])C.[Na+]
InChi 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
PubChem CID 23663979
MDL Number MFCD00064313
Handling Protect from air and moisture
Storage Conditions + 4°C
Shipping Conditions RT
USAGE For Research Use Only! Not For Use in Humans.


Ampicillin sodium is a β-lactam antibiotic structurally related to penicillin. Inhibits bacterial cell-wall synthesis by inactivating transpeptidases on the inner surface of the bacterial cell membrane. Ampicillin sodium can be used as a selective agent in several types of isolation media. Ampicillin sodium is routinely used to select for cells containing the pcDNA3.1 and pEAK10 resistance plasmids in cell line A904L at an effective concentration of 50 µg/ml.

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