2,5-Dioxopyrrolidin-1-yl 2-(prop-2-yn-1-yloxy)acetate

DBCO-PEG6-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DBCO-PEG6-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

K-ASPTM

50 assays (manual) / 500 assays (microplate) / 500 assays (auto-analyser)

Content:	50 assays (manual) / 500 assays (microplate) / 500 assays (auto-analyser)
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:	Aspartame
Assay Format:	Spectrophotometer, Microplate, Auto-analyser
Detection Method:	Absorbance
Wavelength (nm):	340
Signal Response:	Decrease
Linear Range:	10 to 150 µg of aspartame per assay
Limit of Detection:	0.57 mg/L
Reaction Time (min):	~ 5 min
Application examples:	Soft drinks, artificial sweeteners, candies, mints, chewing gum, dietetic products, jam, chocolate and other materials.
Method recognition:	Novel method

This product has been discontinued (read more).

The Aspartame test kit is a simple and reliable method for the specific measurement and analysis of Aspartame in beverages and foodstuffs.

Note for Content: The number of manual tests per kit can be doubled if all volumes are halved.  This can be readily accommodated using the MegaQuant^TM  Wave Spectrophotometer (D-MQWAVE).

We have a wide range of other assay kit products.

Advantages

• Very cost effective 
• All reagents stable for > 12 months after preparation 
• Only enzymatic kit available 
• Measures aspartame and breakdown products (L-aspartate and aspartame acid) 
• Very specific 
• Very rapid reaction 
• Mega-Calc™ software tool is available from our website for hassle-free raw data processing 
• Standard included 
• Suitable for manual, microplate and auto-analyser formats

The Aspartame test kit is a simple and reliable method for the specific measurement and analysis of Aspartame in beverages and foodstuffs.

Overview

• Ready-to-use
• Quantitative
• Highly Stable
• Precise
• 10 discrete bands from 50 bp to 500 bp
• Higher intensity reference band at 250 bp

The 50 bp DNA Ladder is prepared to ensure quality and batch-to-batch consistency. This Ladder contains ten discrete fragments ranging from 50 bp to 500 bp with a higher intensity reference band at 250 bp. This Ladder is ideal for quick sizing of PCR products

Contents
1mL of premixed DNA ladder (0.5µg/10µL) in loading buffer (10mM EDTA, 10% glycerol, 0.015% bromophenol blue, and 0.17% SDS).

Details

Supporting Data

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50 bp DNA Ladder (Cat# 13525) – 100 loads

Ladder Properties:
• Ten discrete bands, ranging from 50 bp to 500 bp
• Higher intensity band at 250 bp for easy reference

Fragment	Size (bp)	Mass (ng)
1	500	79
2	450	67
3	400	59
4	350	55
5	300	49
6	250	76
7	200	33
8	150	22
9	100	31
10	50	29

Recommended Use:

Mix thoroughly. For best results, load 10µL of DNA ladder per well. For precise mass determination with a densitometer, stain gel after electrophoresis using 0.5µg/mL ethidium bromide for 30-40 minutes. The table above shows the size and mass for each band based on 10µL ladder per well.

Storage: 

Stable at room temperature. For longer term storage, -20°C is recommended.

This ladder was standardized using 10µL of DNA per lane on a 0.8 cm thick, 13 x 15 cm, 1.0% agarose gel run in TAE buffer.