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518316-54-6

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518316-54-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 518316-54-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,8,3,1 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 518316-54:
(8*5)+(7*1)+(6*8)+(5*3)+(4*1)+(3*6)+(2*5)+(1*4)=146
146 % 10 = 6
So 518316-54-6 is a valid CAS Registry Number.

518316-54-6Relevant articles and documents

An improved synthesis of 9-deazaguanine

Liu, Mao-Chin,Luo, Mei-Zhen,Mozdziesz, Diane E.,Sartorelli, Alan C.

, p. 3797 - 3802 (2007/10/03)

A new, improved synthesis of 9-deazaguanine is described. The method involves use of the benzyloxymethyl group to protect the N3-position of 2-[(dimethylaminomethylene)-amino]-6-methyl-5-nitro-4(3H)-pyrimidinone, followed by treatment with DMF-dimethylacetal, reductive cyclization, treatment with ethanolic ammonia and removal of the protecting group by catalytic hydrogenation.

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