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141859-34-9

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141859-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141859-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,8,5 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 141859-34:
(8*1)+(7*4)+(6*1)+(5*8)+(4*5)+(3*9)+(2*3)+(1*4)=139
139 % 10 = 9
So 141859-34-9 is a valid CAS Registry Number.

141859-34-9Relevant articles and documents

FACILE AND GENERAL SYNTHESIS OF 8-SUBSTITUTED 2-METHYLTHIOPURIN-6-ONES

Nagamatsu, Tomohisa,Yamasaki, Hiroo

, p. 775 - 790 (2007/10/02)

A variety of 3-methyl-6-oxo-2-thioxo-1,2,3,6-tetrahydropurine (3a) and its 8-substituted derivatives (3b-o) were synthesized by oxidative cyclization of the reaction product of 5,6-diamino-1-methyl-2-thiouracil (1) with an appropriate aldehyde or 6-amino-

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