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1426174-15-3

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1426174-15-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1426174-15-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,6,1,7 and 4 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1426174-15:
(9*1)+(8*4)+(7*2)+(6*6)+(5*1)+(4*7)+(3*4)+(2*1)+(1*5)=143
143 % 10 = 3
So 1426174-15-3 is a valid CAS Registry Number.

1426174-15-3Downstream Products

1426174-15-3Relevant articles and documents

A new precursor for the radiosynthesis of 6-o-(2-[18F]fluoroethyl)-6-odesmethyl-diprenorphine ([18F]FE-DPN) by nucleophilic radiofluorination

Marton, János,Cumming, Paul,Bauer, Beate,Henriksen, Gjermund

, p. 344 - 352 (2021/09/07)

We present the preparation of the new precursor 6-O-(2-tosyloxyethoxy)-6-O-desmethyl-3O-trityl-diprenorphine (TE-TDDPN) for a one-pot, two-step nucleophilic radiosynthesis of 6-O-(2[18F]fluoroethyl-6-O-desmethyl-diprenorphine ([18F]FE-DPN). The route to the precursor consists of a five-step synthesis starting from diprenorphine. We also provide alternative synthesis routes for the cold reference standard and the complete1H-and13C-NMR assignment of the prepared derivatives.

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