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223131-45-1

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223131-45-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 223131-45-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,1,3 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 223131-45:
(8*2)+(7*2)+(6*3)+(5*1)+(4*3)+(3*1)+(2*4)+(1*5)=81
81 % 10 = 1
So 223131-45-1 is a valid CAS Registry Number.

223131-45-1Downstream Products

223131-45-1Relevant articles and documents

Synthesis, in vitro pharmacology and radiosynthesis of N-(cis-4-fluoromethylcyclohexyl)-4-(1(H)-imidazol-4-yl)piperidine-1 -thiocarbonamide (VUF 5000), a potential pet ligand for the histamine H3 receptor

Windhorst, Albert D.,Timmerman, Henk,Menge, Wiro M.P.B.,Leurs, Rob,Herscheid, Jacobus D.M.

, p. 293 - 307 (2007/10/03)

The synthesis of N-(cis-4-fluoromethylcyclohexyl)-4-(1(H)-imidazol-4-yl)piperidine-1 -thiocarbonamide (VUF 5000) 3, a fluorinated analogue of the potent (pA2 value of 8.9 ± 0.1, K(i) = 4.3 ± 0.9 nM) histamine H3 receptor antagonist thioperamide 2 is described. After the establishment of the H3 antagonistic activity of VUF 5000, pA2 value = 9.0 ± 0.2, K(i) = 2.3 ± 0.5 nM, a four step synthesis for the radiolabelling of VUF 5000 with 18F (half life 110 min) was developed. Within 4 hours of the end of the bombartment, [18F]VUF 5000 was obtained with an average radiochemical yield of 23% (decay corrected) and a specific activity > 96.2 TBq/μmol (2.6 Ci/μmol).

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