Cryptand 222, Kryptofix® 222
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68-71 °C (lit.)

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1 g in glass bottle
250 mg in glass bottle
Cryptand used with potassium mirror to reduce a hindered distannene to a crystalline radical anion.
Bottomless glass bottle. Contents are inside inserted fused cone.

Legal Information

Kryptofix is a registered trademark of Merck KGaA, Darmstadt, Germany


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Hazard Statements


Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2


11 - Combustible Solids

WGK Germany


Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Vladimir Ya Lee et al.
Journal of the American Chemical Society, 128(35), 11643-11651 (2006-08-31)
((t)Bu(2)MeSi)(2)Sn=Sn(SiMe(t)Bu(2))(2) 1, prepared by the reaction of (t)Bu(2)MeSiNa with SnCl(2)-diox in THF and isolated as dark-green crystals, represents the first example of acyclic distannene with a Sn=Sn double bond that is stable both in the crystalline form and in solution....
T Chaly et al.
International journal of radiation applications and instrumentation. Part B, Nuclear medicine and biology, 16(4), 385-387 (1989-01-01)
A simple procedure for the detection of 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo (8.8.8) hexacosane (Kryptofix 2.2.2) in the final solution of [18F]FDG prepared by the aminopolyether supported nucleophilic substitution of 1,3,4,6-tetra-O-acetyl 2-O-trifluoromethanesulfonyl-beta-D-mannopyranose (Hamacher et al., 1986) has been developed. Presence of Kryptofix 2.2.2 in...
T Colomina et al.
Veterinary and human toxicology, 33(2), 121-124 (1991-04-01)
The effects of repeated ip administration of diethylenetriaminepentaacetic acid (DTPA), Kryptofix 222, 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6), ethylenglycol-bis-(beta-amino-ethylether)-N,N'-tetraacetic acid (EGTA), and Kryptofix 5 on the distribution and excretion of sc-injected strontium were investigated in male Swiss mice. Groups of 20 animals received 95...
J M Llobet et al.
Health physics, 65(5), 541-544 (1993-11-01)
90Sr has a physical half-life of sufficient duration to make it a potentially dangerous contaminant from nuclear accidents and radioactive wastes. In the present study, the efficacy of 16 compounds as potential chelators of strontium was tested in vitro. Strontium...
David Kryza et al.
Nuclear medicine and biology, 35(2), 255-260 (2008-03-04)
We developed a new fully automated method for the radiosynthesis of [18F]fluorocholine by modifying the commercial 2-[18F]fluoro-2-d-deoxy-glucose ([18F]FDG) synthesizer module (GE TracerLab MX, formerly Coincidence). [18F]Flurocholine was synthesized by (18)F-fluoroalkylation of N,N-dimethylaminoethanol using [18F]fluorobromomethane as fluoromethylating agent. [18F]Fluorobromomethane was produced...
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