This product is not assigned an expiration date. Products that have no expiration date are robust in nature and extremely stable in the original sealed container. These products will have no dating reported on either the label or the Certificate of Analysis but are covered by a warranty period of 1 year from the date of product shipment. The complete Product Dating statement may be reviewed at the link below:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/190/408/product-dating-information-ms.pdf .
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sterility
sterile-filtered
product line
BioReagent
form
liquid
technique(s)
cell culture | mammalian: suitable
impurities
endotoxin, tested
storage temp.
2-8°C
Quality Level
1 of 4
This Item | M7145 | M0275 | M8042 |
|---|---|---|---|
| technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable |
| sterility sterile-filtered | sterility sterile-filtered | sterility sterile-filtered | sterility sterile-filtered |
| form liquid | form liquid | form liquid | form liquid |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
| impurities endotoxin, tested | impurities endotoxin, tested | impurities endotoxin, tested | impurities endotoxin, tested |
| Quality Level 200 | Quality Level 200 | Quality Level 400 | Quality Level 400 |
Application
Preparation Note
Storage Class
12 - Non Combustible Liquids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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How long can this be stored in the refrigerator for?
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What are the concentrations of AAs?
1 answer-
The concentration of amino acids can be found in the formulation documentation, please view the formulation document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/210/498/m5550for.pdf.
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Can this be used for cell free expression on E.coli system?
1 answer-
This product is intended for use in mammalian cell culture, not for bacteria.
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Can Product M5550, MEM Amino Acids (50X) solution contain precipitates?
1 answer-
Product M5550, MEM Amino Acids (50X) has a specification as a clear solution. This product can have a slight precipitate that forms at 2-8°C. This precipitate will disappear when warmed to room temperature or when diluted to 1X. There is no affect on the product quality.
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What is the Department of Transportation shipping information for this product?
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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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