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146858-53-9

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146858-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 146858-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,8,5 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 146858-53:
(8*1)+(7*4)+(6*6)+(5*8)+(4*5)+(3*8)+(2*5)+(1*3)=169
169 % 10 = 9
So 146858-53-9 is a valid CAS Registry Number.

146858-53-9Relevant articles and documents

First synthesis of pyrido-furo-pyrimidines with an imidazole residue anellated to the pyrimidine ring

Wagner,Prantz,Leistner

, p. 825 - 828 (2007/10/02)

2,3-Dihydro-pyrido[3',2':4,5]furo[2,3-e]imidazo[1,2-c]pyrimidine 5b was obtained from the 3-acetylamino-furo[2,3-b]pyridine-2-carbonic ethyl ester 2b via the N-3-hydroxyethyl substituted pyrido-furo-pyrimidine derivative 3b and its chloroethyl derivative

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