If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
B9754
BIS-TRIS
≥98.0% (titration)
Synonym(s):
2,2-Bis(hydroxymethyl)-2,2′,2″-nitrilotriethanol, 2-Bis(2-hydroxyethyl)amino-2-(hydroxymethyl)-1,3-propanediol, Bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane
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About This Item
Quality Segment
assay
≥98.0% (titration)
form
crystalline powder
storage condition
dry at room temperature
technique(s)
UV/Vis spectroscopy: suitable, electrophoresis: suitable
color
white
useful pH range
5.8-7.2
pKa (25 °C)
6.5
solubility
H2O: 500 mg/mL, clear, colorless to very faintly yellow
suitability
suitable for Western blot, suitable for column chromatography of proteins
application(s)
advanced drug delivery
diagnostic assay manufacturing
general analytical
microbiology
SMILES string
OCCN(CCO)C(CO)(CO)CO
InChI
1S/C8H19NO5/c10-3-1-9(2-4-11)8(5-12,6-13)7-14/h10-14H,1-7H2
InChI key
OWMVSZAMULFTJU-UHFFFAOYSA-N
General description
Application
Features and Benefits
- Suitable for Biological and Biochemical Research
- Effective Buffering from pH 5.8-7.2 (25 °C) with a pKa of 6.5 (25 °C)
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| assay ≥98.0% (titration) | assay ≥98.0% | assay ≥99% dry basis (titration) | assay ≥99.0% (NT) |
| technique(s) UV/Vis spectroscopy: suitable, electrophoresis: suitable | technique(s) cell culture | insect: suitable, cell culture | mammalian: suitable | technique(s) - | technique(s) - |
| Quality Level 400 | Quality Level 400 | Quality Level 100 | Quality Level 200 |
| form crystalline powder | form crystalline powder | form solid | form powder |
| application(s) advanced drug delivery | application(s) diagnostic assay manufacturing | application(s) - | application(s) - |
| solubility H2O: 500 mg/mL, clear, colorless to very faintly yellow | solubility H2O: 500 mg/mL, clear, colorless to very faintly yellow | solubility water: soluble | solubility H2O: 1 M at 20 °C, clear, colorless |
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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