Small molecules & peptides

Cryptand 222

Phase transfer catalysts for the synthesis of radiopharmaceutical preparations

2,2,2-Cryptand, 2,2,2-Cryptate, Cryptand 2.2.2, Cryptate 222, Cryptating agent 222, Cryptofix 222, Kryptand 222, Kryptofix 222

4,7,13,16,21,24-Hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane

Molar mass 376.49 g/mol

CAS RN 23978-09-8

Cryptand 222 is an aminopolyether employed to dissolve potassium salts. The formed aminoether potassium complex is used as phase transfer catalyst in nucleophilic ¹⁸F-labelling of radiotracers.
Colourless crystals. Soluble in acetonitrile, chloroform, water
Melting point 68-72 °C
Fillings < 100 mg are available in 2 ml dark glass vials, packed under Ar gas flow. Vials are sealed with teflon-faced rubber stoppers and tear-off crimp caps.
Fillings ≥ 100 mg are available in dark glass screw cap vials, flushed with Ar gas flow.

Product	Product No.	Filling amount	Quantity
/products/small-molecules-and-peptides/chemical/1bdb8bb8-a24b-4141-a518-fcf29f6e6d02	Chemicals	Product No.: 800	Filling amount: 15 mg
/products/small-molecules-and-peptides/chemical/1bdb8bb8-a24b-4141-a518-fcf29f6e6d02	Chemicals	Product No.: 800	Filling amount: 20 mg
/products/small-molecules-and-peptides/chemical/1bdb8bb8-a24b-4141-a518-fcf29f6e6d02	Chemicals	Product No.: 800	Filling amount: 25 mg
/products/small-molecules-and-peptides/chemical/1bdb8bb8-a24b-4141-a518-fcf29f6e6d02	Chemicals	Product No.: 800	Filling amount: 100 mg
/products/small-molecules-and-peptides/chemical/1bdb8bb8-a24b-4141-a518-fcf29f6e6d02	Chemicals	Product No.: 800	Filling amount: 250 mg
/products/small-molecules-and-peptides/chemical/1bdb8bb8-a24b-4141-a518-fcf29f6e6d02	Chemicals	Product No.: 800	Filling amount: 1000 mg
/products/small-molecules-and-peptides/chemical/1bdb8bb8-a24b-4141-a518-fcf29f6e6d02	Chemicals	Product No.: 800