Unstained Protein MW Marker (10-235kDa) - for western blot, suitable for electrophoresis, 10-235kDa; 10/ 15/ 20/ 25/ 35/ 50/ 70/ 100/ 150/ 235kDa

Cat. No.: N1491669
AVAILABLE TO ORDER
GRADE & PURITY Suitable for electrophoresis ? Electrophoresis grade — low ionic/UV impurities for clean gel runs. Use in agarose/PAGE electrophoresis where impurities distort bands. for Western blot ? Western-blot grade — suited to protein transfer and immunodetection. Use in Western workflows where reagent purity keeps background low. 10-235kDa; 10/ 15/ 20/ 25/ 35/ 50/ 70/ 100/ 150/ 235kDa
Synonyms
Unstained Protein Ladder
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
Application
WB
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250μl
N1491669-250μl
2
$99.90
2×250μl
N1491669-2×250μl
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$159.90
Enter a quantity for the sizes you want to add.
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Why this grade

for western blot, suitable for electrophoresis, 10-235kDa; 10/ 15/ 20/ 25/ 35/ 50/ 70/ 100/ 150/ 235kDa for Western blot,Suitable for electrophoresis for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

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

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Literature proof

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

Overview

This product consists of 10 recombinant proteins spanning a molecular weight range of 10–235 kDa. The marker provides sharp bands, accurate molecular weights, well-distributed size ranges, and excellent storage stability.
Protocol
Thaw the marker at room temperature for a few minutes before use. Gently mix to ensure homogeneity.
Load an appropriate volume into the gel wells:
Gel thickness 0.75–1.0 mm: Load 5 μL/well.
Gel thickness 1.5 mm: Load 10 μL/well.
Adjust the volume as needed based on experimental conditions.
After use, close the tube and store at 4°C or –20°C.
Note: For a 5 μL loading volume, each band contains approximately 0.5–1 μg of protein.
Precautions
This product can be heated/boiled (e.g., for denaturing gels).
In low-percentage gels, low-molecular-weight bands may co-migrate with the dye front and become unresolved.
To avoid repeated freeze-thaw cycles and contamination, aliquot and store at –20°C.
This product contains multiple chemical components. Do not ingest and avoid contact with eyes or skin. Wear a lab coat and disposable gloves during handling.
For research use only.

Specifications

Synonyms
Unstained Protein Ladder
Specifications & Purity
for western blot, suitable for electrophoresis, 10-235kDa; 10/ 15/ 20/ 25/ 35/ 50/ 70/ 100/ 150/ 235kDa
Stability And Storage
Store at 2-8℃ short term (3 months). Store at -20℃ long term (12 months). Avoid freeze/thaw cycle. Upon receipt, it is recommended to aliquot.
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
for Western blot, Suitable for electrophoresis
Images
Unstained Protein MW Marker (10-235kDa) (N1491669) - Image is a 4-20% gels (SDS-PAGE) stained with Coomassie blue gel stain
The SDS-PAGE analysis of the Unstained Protein MW Marker (10-235 kDa) (N1491669) shows a clear and well-resolved band profile on both 4-20% Bis-Tris and 4-20% Tris-Glycine gels. The marker covers a broad molecular weight range from 10 kDa to 235 kDa, with distinct bands at key molecular weights, including: 10 kDa, 15 kDa, 20 kDa, 25 kDa, 35 kDa, 50 kDa, 70 kDa, 100 kDa, 150 kDa, 235 kDa. 
This profile demonstrates excellent separation and band sharpness, making it suitable for accurate molecular weight estimation of unknown proteins under standard SDS-PAGE conditions.

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 electrophoresis grade guide → View for Western blot grade guide →

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