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487013-52-5

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487013-52-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 487013-52-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,7,0,1 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 487013-52:
(8*4)+(7*8)+(6*7)+(5*0)+(4*1)+(3*3)+(2*5)+(1*2)=155
155 % 10 = 5
So 487013-52-5 is a valid CAS Registry Number.

487013-52-5Relevant articles and documents

Preparation of 2,3-dihydro-1H-spiro[isoquinoline-4,4′-piperidine] via an N-sulfonyl Pictet-Spengler reaction

Liu, Jian,Jian, Tianying,Sebhat, Iyassu,Nargund, Ravi

, p. 5115 - 5117 (2006)

A high yielding synthesis of variously substituted 2,3-dihydro-1H-spiro[isoquinoline-4,4′-piperidine] is reported. N-(2-nitrophenyl)sulfonyl was successfully used as both an activating and protecting group for the key Pictet-Spengler reaction.

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