CENTA β-Lactamase Substrate,25MG,219475-25MGCN,Sigma

销售价: ¥ 3343.88 / 件
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订货号 0BV7226
品牌型号 Sigma 219475-25MGCN
货期 询货期
最小订货量 1件
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产品介绍 Product Description

General description

Chromogenic β-lactamase substrate for both gram-negative and gram-positive bacteria that is comparable to other chromogens (PADAC Substrate and nitrocefin). Hydrolysis of the beta-lactam ring causes a color change from light yellow (λmax: 340 nm) to chrome yellow (λmax: 405 nm). Relatively unaffected by commonly used microbiological media and human serum. Stable in H2O and in the presence of cysteine, mercaptoethanol and dimercaptopropanol.

Please note that the molecular weight for this compound is batch-specific due to variable water content.


Preparation Note

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.


Other Notes

Jones, R.N., et al. 1982. J. Clin. Microbiol.15, 954.


Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany


Disclaimer

Toxicity: Standard Handling (A)


技术参数 Specifications
Quality Segment100
descriptionRTECS - OD2265000
assay≥98% (TLC)
formpowder
manufacturer/tradenameCalbiochem®
storage conditionOK to freeze
color yellow
solubility25 mM phosphate buffer, pH 7.0: 2.5 mg/mL,methanol: 50 mg/mL
shipped inambient
storage temp.−20°C
长度(mm)
宽度(mm)
高度(mm)
重量(kg)
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