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209104

Potassium osmate(VI) dihydrate

Synonym(s):

Dipotassium tetrahydroxodioxoosmate, Potassium dioxidodioxoosmium dihydrate, Potassium osmium oxide

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100 mg
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$63.40
500 mg
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$213.00
2.5 g
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$703.00

About This Item

Linear Formula:
K2OsO4·2H2O
CAS Number:
Molecular Weight:
368.45
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
243-247-1
MDL number:
Form:
powder

$63.40


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form

powder

Quality Level

reaction suitability

core: potassium, reagent type: oxidant

SMILES string

O.O.[K+].[K+].[O-][Os]([O-])(=O)=O

InChI

1S/2K.2H2O.4O.Os/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;

InChI key

DGODWNOPHMXOTR-UHFFFAOYSA-N

General description

Potassium osmate(VI) dihydrate is a hydroscopic transition metal compound soluble in water and methanol, widely used as a reagent/catalyst to synthesize Os compounds.

Application

Potassium osmate(VI) dihydrate can be used:
  • As a reagent for the stereoselective synthesis of 2,3,4-unprotected β-N-Glycopyranosides via palladium-catalyzed Tsuji-Trost amination.
  • As a catalyst for asymmetric synthesis of carboranylated diols bearing two adjacent stereocenters.
  • To prepare Osmium complexes for voltammetric analysis of polysaccharides.

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form

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form

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form

powder

Quality Level

200

Quality Level

200

Quality Level

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reaction suitability

core: potassium, reagent type: oxidant

reaction suitability

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reaction suitability

-

reaction suitability

-


pictograms

Skull and crossbones

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges



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Tetrahedron Letters, 47, 3797-3797 (2006)
Timothy J Donohoe et al.
Journal of the American Chemical Society, 128(8), 2514-2515 (2006-02-24)
The use of N-sulfonyloxy carbamates as reoxidants for the tethered aminohydroxylation (TA) reaction is reported. These new conditions obviate the requirement for lithium hydroxide and tBuOCl in the oxidation mixture. In addition to providing aminohydroxylation products in good yields, the



Global Trade Item Number

SKUGTIN
209104-500MG04061838770547
209104-100MG04061832968315
209104-2.5G04061838770530

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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