N-(Propargyl-PEG2)-N-Boc-PEG3-t-butyl ester is a click chemistry branched linker. The propargyl group can react with azide-bearing compounds through Click Chemistry, the t-butyl protected carboxyl group can also be deprotected under mild acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
N-(Propargyl-PEG2)-N-Boc-PEG3-t-butyl ester is a click chemistry branched linker. The propargyl group can react with azide-bearing compounds through Click Chemistry, the t-butyl protected carboxyl group can also be deprotected under mild acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Description
AccuBand™ 100 bp+3K DNA Ladder II is composed of 14 individual DNA fragments, presenting 3k, 2k, 1.5k, 1.2k, 1k, 900, 800, 700 600, 500, 400, 300, 200 and 100 bp sharp bands respectively. This product contains 2 enhanced bands (1k and 500 bp) for easy band identification. AccuBand™ 100 bp+3K DNA Ladder II is ready-to-use, containing loading buffer with dual color tracking dyes (orange G and Xylene cyanol FF). AccuBand™ 100 bp+3K DNA Ladder II provides a sufficient amount of DNA for clear observation of all DNA bands ranging from 100 bp to 3 kb, either in agarose gel or in polyacrylamide gel electrophoresis.
Features
Source
Phenol extracted PCR products and dsDNA digested with specific restriction enzymes, equilibrated in 10 mM Tris-HCl (pH 8.0) and 10 mM EDTA.
Range
100 ~ 3,000 bp
Concentration
54.4 µg/ 500 µl
Recommended loading volume
5 µl/ well
Storage
Room temperature for 6 months
4°C for 12 months
-20°C for 36 months
K-CATAL
SKU: 700004271
100 / 200 assays per kit
| Content: | 100 / 200 assays per kit |
| Shipping Temperature: | Ambient |
| Storage Temperature: | Short term stability: 2-8oC, Long term stability: See individual component labels |
| Stability: | > 2 years under recommended storage conditions |
| Analyte: | Catalase |
| Assay Format: | Spectrophotometer |
| Detection Method: | Absorbance |
| Wavelength (nm): | 520 |
| Signal Response: | Increase |
| Limit of Detection: | 0.5 U/mL |
| Total Assay Time: | 20 min |
| Application examples: | Various food, biological and bacterial samples. |
| Method recognition: | Novel method |
Megazyme’s catalase assay kit provides a simple colourimetric method for the measurement of catalase activity. The method is delivered in a fast and reliable format and may be used to detect catalase activity in various samples, including food, biological and bacterial samples. The calculation method included allows for significant variation in the concentration of the H2O2 substrate solution that is employed in the assay which translates into a reduction in the ‘hands on’ time required by the analyst in comparison to other commercial kits.
See our complete list of assay kits for the measurement enzyme activity.
Advantages
Megazyme’s catalase assay kit provides a simple colourimetric method for the measurement of catalase activity. The method is delivered in a fast and reliable format and may be used to detect catalase activity in various samples, including food, biological and bacterial samples. The calculation method included allows for significant variation in the concentration of the H2O2 substrate solution that is employed in the assay which translates into a reduction in the ‘hands on’ time required by the analyst in comparison to other commercial kits.
DBCO-PEG4-PC represents a photocleavable, PEG linker consisting of a DBCO group that can be used for copper-free Click Chemistry reactions. This structure allows for efficient photorelease of linked molecules, typically achieving over 90% cleavage in 5-25 minutes using a near-UV lamp. The PEG4 spacer increases the hydrophilicity of the compound.
DBCO-PEG4-PC represents a photocleavable, PEG linker consisting of a DBCO group that can be used for copper-free Click Chemistry reactions. This structure allows for efficient photorelease of linked molecules, typically achieving over 90% cleavage in 5-25 minutes using a near-UV lamp. The PEG4 spacer increases the hydrophilicity of the compound.
