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
P6757
PIPES
≥99% (titration)
Sinonimo/i:
Acido 1,4-piperazinadietansolfonico, Piperazina-1,4-bis(acido 2-etansolfonico), Piperazina-N,N′-bis(acido 2-etansolfonico)
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| A voi/SKU | Disponibilità | Prezzo |
|---|
Informazioni su questo articolo
Quality Segment
assay
≥99% (titration)
form
crystalline powder
useful pH range
6.1-7.5
pKa (25 °C)
6.8
mp
>300 °C (lit.)
solubility
1 M NaOH: 20 + 80 mL g, clear, colorless
application(s)
diagnostic assay manufacturing
SMILES string
OS(=O)(=O)CCN1CCN(CC1)CCS(O)(=O)=O
InChI
1S/C8H18N2O6S2/c11-17(12,13)7-5-9-1-2-10(4-3-9)6-8-18(14,15)16/h1-8H2,(H,11,12,13)(H,14,15,16)
InChI key
IHPYMWDTONKSCO-UHFFFAOYSA-N
General description
Application
L′attività della fosfatasi alcalina viene persa selettivamente da alcuni organelli degli epatociti di ratto quando si effettua la fissazione per l′ultracitochimica con glutaraldeide tamponata con cacodilato. Quando è stato utilizzato il PIPES come tampone, la ritenzione dell′attività è stata maggiore del 60%.[2]
La fissazione delle zoospore fungine per la microscopia a fluorescenza e la microscopia a elettroni è stata ottimale con una combinazione di glutaraldeide e formaldeide in tampone PIPES.[3]
Preparation Note
1 of 1
Questo articolo | |||
|---|---|---|---|
| assay ≥99% (titration) | assay ≥99% (titration) | assay - | assay ≥99.5% (T) |
| Quality Level 400 | Quality Level 400 | Quality Level 400 | Quality Level 100 |
| form crystalline powder | form powder | form crystalline powder | form powder |
| application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing | application(s) - |
| solubility 1 M NaOH: 20 + 80 mL g, clear, colorless | solubility 1 M NaOH: 0.5 M at 20 °C, clear, colorless | solubility 1 M NaOH: 20 + 80 mL g, clear, colorless, soluble | solubility 0.1 M NaOH: 0.1 M at 20 °C, clear, colorless |
| mp >300 °C (lit.) | mp >300 °C (lit.) | mp >300 °C (lit.) | mp >300 °C (lit.) |
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Classe di stoccaggio
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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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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