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About This Item
Recommended Products
form
liquid
composition
bromophenol blue, 0.004%
DTT, 400 mM
glycerol, 20%
SDS, 4%
TRIS, 0.125 M
pH
~6.8
suitability
in accordance for electrophoresis test
storage temp.
−20°C
Related Categories
Application
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
What is the difference between the two Laemmli buffers S3401 and 38733?
Product No. S3401 is 0.125 M Tris (pH 6.8) in 80% water/20% glycerol, with 4% SDS, 10% 2-mercaptoethanol and 0.004% bromophenol blue. 38733 is 0.125 M Tris in 80% water/20% glycerol, with 4% SDS, 400 mM DTT and 0.004% bromophenol blue. So the only difference is the reducing agent; 2-mercaptoethanol (strong odor) vs. the DTT (not nearly as strong an odor).
What is the advantage of using Laemmli Lysis-buffer, Product No. 38733?
The odor of 38733 is not nearly as strong as that of S3401 (which has 2-mercaptoethanol). Some people are very sensitive to the odor of 2-mercaptoethanol.
Is Laemmli Lysis-buffer, Product No. 38733, a 1× or a 2× solution?
For most applications, it is considered to be a 2X solution.
Why do the Laemmli sample buffers like S3401 and 38733 have glycerol in them?
An aqueous buffer with 20% glycerol is denser than one without. So when the sample is added to the well of an electrophoresis gel, it tends to stay in the well.
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What is the Department of Transportation shipping information for this product?
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.
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