Skip to Content
Merck

Skip To

B2787

Biotinylated Molecular Weight Marker

mol wt 6,500-180,000 Da

Synonym(s):

protein markers, protein molecular weight markers, protein standards

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View
Size/SKUAvailabilityPrice
1 vial
Please contact Customer Service for Availability
PLN 933.00
5 x 1 vial
Please contact Customer Service for Availability
PLN 3,660.00

About This Item

UNSPSC Code:
12352200
NACRES:
NA.25
eCl@ss:
34058011

PLN 933.00


Please contact Customer Service for Availability

Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist


form

lyophilized powder

Quality Segment

usage

 vial sufficient for 200 applications (on 10 cm × 10 cm mini gels)

mol wt

6,500-180,000 Da

packaging

vial of 0.1 mg protein (also contains 0.1 mg NaCl and 0.1 mg sucrose)

storage temp.

−20°C

Application

For SDS-PAGE and protein transfer, the Biotinylated Molecular Weight Standard Mixture contains proteins, which have been biotin conjugated for use as SDS-PAGE standards for the estimation of the molecular weights of blotted proteins.[1] Visualization is accomplished using streptavidin-peroxidase (Cat. No. S2438) and a color development reagent such as 4-Chloro-1-naphthol (Cat. No. C8890), eliminating the need to cut out separate lanes for general protein stains and can be performed simultaneously with immunostaining procedures. These standards may be used with either the Laemmli[2] or the Weber and Osborn[3] SDS-PAGE procedures.

Preparation Note

Each vial is reconstituted with 1 mL of 1x sample buffer (Cat. No. S3401) and incubated for 2-3 minutes at 100 °C.

Other Notes

Contains nine biotinylated proteins (approx 0.1 mg total).
This product contains:
  • α2-macroglobulin (equine serum)
  • β-galactosidase (E. coli)
  • phosphorylase b (rabbit muscle)
  • catalase (bovine liver)
  • alcohol dehydrogenase (yeast)
  • carbonic anhydrase (bovine erythrocyte)
  • trypsin inhibitor (soy bean)
  • lysozyme (chicken egg)
  • aprotinin (bovine lung)
Each vial contains approximately 33% protein, 33% NaCl and 33% sucrose.

Compare Similar Items

View Full Comparison

Show Differences

1 of 1

This Item
M3546SDS7B2C6210
form

lyophilized powder

form

liquid

form

-

form

liquid

Quality Level

200

Quality Level

100, 200

Quality Level

200, 400

Quality Level

100, 200

storage temp.

−20°C

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

−20°C

usage

 vial sufficient for 200 applications (on 10 cm × 10 cm mini gels)

usage

 vial sufficient for 400 applications on large gels (16 × 18 cm),  vial sufficient for 800 mini-gels (10 × 10 cm)

usage

-

usage

sufficient for 20 applications (on 10 cm × 10 cm mini gels)

mol wt

6,500-180,000 Da

mol wt

-

mol wt

26,600-180,000 Da

mol wt

-

packaging

vial of 0.1 mg protein (also contains 0.1 mg NaCl and 0.1 mg sucrose)

packaging

vial of 200 μL

packaging

-

packaging

-


Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library



Questions

1–3 of 3 Questions  
  1. Can I see a picture of this marker? I would like to use it for chemiluminescent wester blotting

    1 answer
    1. Gel images are not provided on a lot-to-lot basis. However, historical images are available below. In this example, the marker appears in the middle two lanes.

      Helpful?

  2. The data sheets for Products SDS7B2 and B2787 do not provide a specific recommendation on how long the solutions of these molecular weight marker mixtures can be kept frozen at -20°C.  What information can you provide?

    1 answer
    1. Our R&D group recommends that after reconstitution, the solutions should be divided into aliquots and immediately frozen; avoid repeated freeze / thaw cycles. The aliquots should last at least a year at -20°C. Storage at -80°C would even be better, if it is convenient.

      Helpful?

  3. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

Reviews

No rating value

Active Filters