L7920
β-Lactamase Blend
recombinant, expressed in E. coli
Synonym(s):
Carbapenemase, Cephalosprinase
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About This Item
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recombinant
expressed in E. coli
Quality Level
sterility
γ-irradiated
form
lyophilized powder
storage temp.
2-8°C
General description
No detectable growth in tryptone soy broth at 30-35 °C for 14 days
Biochem/physiol Actions
β-Lactamases exhibit high carbapenemase activity. β-lactamases can destroy the β-lactam ring. True carbapenemases has the ability to hydrolyse several β-lactam ring containing carbapenems like meropenem, doripenem, imipenem and ertapenem.
Components
600-1500 IU beta-lactamase I per vial
60-150 IU beta-lactamase II per vial
60-150 IU beta-lactamase II per vial
Unit Definition
One unit will hydrolyze 1.0 μmole substrate per min (βI: benzylpenicillin; βII: cephalosporin C) in phosphate buffer, pH 7.0 at 25°C.
Physical form
Lyophilized powder containing sodium chloride, potassium phosphate, dipotassium phosphate and sorbitol.
signalword
Danger
hcodes
Hazard Classifications
Resp. Sens. 1 - Skin Sens. 1
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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