DNA Ladder (50-500bp) - BioReagent, ready-to-use, suitable for electrophoresis, Suitable for molecular biology, for NA electrophoresis, 50-500bp, 9 bands, Blue, 50bp/ 100bp/ 150bp/ 200bp/ 250bp/ 300bp/ 350bp/ 400bp/ 500bp

Cat. No.: D745352
AVAILABLE TO ORDER
GRADE & PURITY Suitable for molecular biology ? Molecular-biology grade — free of nucleases and contaminants that degrade DNA/RNA. Use in cloning, PCR, and nucleic-acid work needing clean reagents. BioReagent ? BioReagent grade — tested suitable for life-science and molecular-biology use. Use for cell culture, assays, and biochemical work needing biological compatibility. Suitable for electrophoresis ? Electrophoresis grade — low ionic/UV impurities for clean gel runs. Use in agarose/PAGE electrophoresis where impurities distort bands. Ready-to-use ? Ready-to-use — supplied pre-formulated at working concentration, no prep needed. Use to save time and reduce pipetting/dilution errors. for NA electrophoresis ? Nucleic-acid electrophoresis grade — nuclease- and impurity-controlled for DNA/RNA gels. Use to run clean, intact nucleic-acid separations. 50-500bp, 9 bands, Blue, 50bp/ 100bp/ 150bp/ 200bp/ 250bp/ 300bp/ 350bp/ 400bp/ 500bp
Synonyms
50 bp-ⅠDNA ladder | 50 bp DNA Ladder Marker | 50 bp DNA Step Ladder | 50 bp DNA Marker
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100T
D745352-100T
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$29.90
500T
D745352-500T
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$105.90
Enter a quantity for the sizes you want to add.
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Why this grade

BioReagent, ready-to-use, suitable for electrophoresis, Suitable for molecular biology, for NA electrophoresis, 50-500bp, 9 bands, Blue, 50bp/ 100bp/ 150bp/ 200bp/ 250bp/ 300bp/ 350bp/ 400bp/ 500bp BioReagent,for NA electrophoresis,Ready-to-use,Suitable for electrophoresis,Suitable for molecular biology for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Storage buffer: 10mM Tris HCl, 5mM EDTA, 0.03% Bromophenol Blue, 0.03% Xylene Cyanol, 30% Glycerol, pH7.6
Product Introduction
This product is composed of 9 linear double stranded DNA fragments, stored in a 1xLoading Buffer, with dense bands that require high concentration gel and low voltage electrophoresis. It is suitable for accurately confirming the size of DNA fragments. The size range is 50-500bp, which are 50bp, 100bp, 150bp, 200bp, 250bp, 300bp, 350bp, 400bp, and 500bp respectively; 250 bp is the bright band, with a concentration 2.5 times that of other bands; In the 5 ul product, each strip contains about 40 ng, and the highlight strip contains about 100 ng.
Usage suggestions
1. It is recommended to sample 5 ul and increase the sample size appropriately for wide adhesive holes.
2. It is recommended to use 2.5-3.5% Agarose or 5% PAGE gel, voltage 4-10 v/cm, and 0.5xTBE buffer for electrophoresis. Pay attention to replacing the electrophoresis buffer in time and using the newly prepared gel to achieve ideal results.
3. Stain with EB or other nucleic acid dyes, and observe the electrophoretic bands under UV light.
matters needing attention
1. This product has been saved in a 1xLoading Buffer and can be directly used for electrophoresis. It is easy to use and the electrophoresis image is clear.
2. When using agarose gel containing EB for electrophoretic detection, the bromophenol blue band can be electrophoretic to about 2/3 of the distance, otherwise the small segment will become dark because EB is separated from DNA.
3. The accompanying 5xLoading buffer can be used for sample detection.
5x Loading Buffer components:
10 mM Tris-HCl,5 mM EDTA, pH7.6, 0.03% bromophenol blue, 0.03% xylene blue, 30% glycerol

Product component

D745352Component100 T500TStorage
D745352ADNA Ladder (50-500bp)500 μL
5× 500 μL-20℃. Avoid freeze/thaw cycle.
D745352B5xLoading buffer1 mL
5× 1 mL-20℃. Avoid freeze/thaw cycle.

Specifications

Synonyms
50 bp-ⅠDNA ladder | 50 bp DNA Ladder Marker | 50 bp DNA Step Ladder | 50 bp DNA Marker
Specifications & Purity
BioReagent, ready-to-use, suitable for electrophoresis, Suitable for molecular biology, for NA electrophoresis, 50-500bp, 9 bands, Blue, 50bp/ 100bp/ 150bp/ 200bp/ 250bp/ 300bp/ 350bp/ 400bp/ 500bp
Stability And Storage
Store at room temperature short term (3-6 months). Store at 4℃ long term (24 months). Store at -20℃ long term (60 months). Upon delivery aliquot. Avoid freeze/thaw cycle.
Storage
Store at -20°C, Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
BioReagent, for NA electrophoresis, Ready-to-use, Suitable for electrophoresis, Suitable for molecular biology
Images

DNA Ladder (50-500bp) (D745352) - 2.5% Agarose in TAE
Samples: Lysates at 5 µL per lane
DNA Ladder (50-500bp) (D745352) is composed of 9 linear double stranded DNA fragments, stored in a 1xLoading Buffer, with dense bands that require high concentration gel and low voltage electrophoresis. It is suitable for accurately confirming the size of DNA fragments. The size range is 50-500bp, which are 50bp, 100bp, 150bp, 200bp, 250bp, 300bp, 350bp, 400bp, and 500bp respectively; 250 bp is the bright band, with a concentration 2.5 times that of other bands; In the 5 uL product, each strip contains about 40 ng, and the highlight strip contains about 100 ng.

Names and Identifiers
PH8.0-8.5

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Documents & Articles
Solution Calculators
Reviews

Customer Reviews

Need help choosing the grade?

Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.

View Suitable for molecular biology grade guide → View BioReagent grade guide → View Suitable for electrophoresis grade guide → View Ready-to-use grade guide → View for NA electrophoresis grade guide →

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