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
426369
TEMPO
purified by sublimation, 99%
Synonym(s):
2,2,6,6-Tetramethylpiperidine 1-oxyl, 2,2,6,6-Tetramethyl-1-piperidinyloxy, free radical, TEMPO
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About This Item
Recommended Products
assay
99%
form
solid
purified by
sublimation
reaction suitability
reagent type: oxidant
mp
36-38 °C (lit.)
storage temp.
2-8°C
SMILES string
CC1(C)CCCC(C)(C)N1[O]
InChI
1S/C9H18NO/c1-8(2)6-5-7-9(3,4)10(8)11/h5-7H2,1-4H3
InChI key
QYTDEUPAUMOIOP-UHFFFAOYSA-N
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This Item | 214000 | 176141 | 581500 |
|---|---|---|---|
| assay 99% | assay 98% | assay 95% | assay ≥95% (HPLC) |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. −20°C |
| form solid | form solid | form solid | form crystals, powder |
| mp 36-38 °C (lit.) | mp 36-38 °C (lit.) | mp 69-71 °C (lit.) | mp - |
| purified by sublimation | purified by - | purified by - | purified by - |
| reaction suitability reagent type: oxidant | reaction suitability reagent type: oxidant | reaction suitability - | reaction suitability - |
General description
Application
signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1C
Storage Class
8A - Combustible corrosive hazardous materials
wgk_germany
WGK 2
flash_point_f
152.6 °F - closed cup
flash_point_c
67 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Helpful?
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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/449/386/product-dating-information-mk.pdfHelpful?
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How to bring TEMPO into aqueous solution?
1 answer-
This product is tested for solubility in ethanol at 50mg/ml. The ethanol stock solution may then be diluted out in water or aqueous buffers. Various sources state that TEMPO may be dissolved directly in water at 9mg/ml. This information has not been validated.
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