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Z290742

Sigma-Aldrich

Vacuum filtration assembly replacement parts

#5 silicone stopper

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About This Item

UNSPSC Code:
41104900
NACRES:
NB.24

Pricing and availability is not currently available.

material

silicone housing

feature

cap plug seal

packaging

pkg of 5 ea

neck diam.

27 mm

compatibility

For 25 mm assemblies, 1-hole

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This Item
06536C80687C80857
assay

≥98.0% (GC)

assay

≥95.0% (GC)

assay

97%

assay

≥99%

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100

density

1.05 g/cm3 at 20 °C

density

1.05 g/mL at 25 °C (lit.)

density

1.05 g/mL at 25 °C (lit.)

density

-

storage temp.

2-30°C

storage temp.

2-8°C

storage temp.

-

storage temp.

-

form

liquid

form

-

form

liquid

form

crystals

mp

-8 °C

mp

−9-−4 °C (lit.)

mp

−9-−4 °C (lit.)

mp

132-135 °C (lit.)


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    Jeffrey S Bandar et al.
    Journal of the American Chemical Society, 134(12), 5552-5555 (2012-03-16)
    Cyclopropenimines are shown to be a highly effective new class of enantioselective Brønsted base catalysts. A chiral 2,3-bis(dialkylamino)cyclopropenimine catalyzes the rapid Michael reaction of a glycine imine substrate with high levels of enantioselectivity. A preparative scale reaction to deliver 25

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