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231955-46-7

231955-46-7

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231955-46-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 231955-46-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,1,9,5 and 5 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 231955-46:
(8*2)+(7*3)+(6*1)+(5*9)+(4*5)+(3*5)+(2*4)+(1*6)=137
137 % 10 = 7
So 231955-46-7 is a valid CAS Registry Number.

231955-46-7Downstream Products

231955-46-7Relevant articles and documents

Purine nucleoside analogues; 9: Benzylation of N2-acetyl-8- bromoguanine

Madre, Marina,Panchenko, Natella,Zhuk, Regina,Geenevasen, Jan A.,Van Den Burg, Alida,Koomen, Gerrit-Jan

, p. 775 - 778 (2007/10/03)

A one-step synthesis of regioisomeric N- and O-benzylated 8- bromoguanines 4, 5, 9, 10 via N2-acetyl-8-bromoguanine (2) is described. The possibility to prepare 8-oxo- and 8-chloroguanine derivatives 3, 11, 12 from the same compound 2 is demonstrated, 1H and 13C NMR spectra are used to locate the sites of aralkylation.

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