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181582-00-3

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181582-00-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181582-00-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,5,8 and 2 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 181582-00:
(8*1)+(7*8)+(6*1)+(5*5)+(4*8)+(3*2)+(2*0)+(1*0)=133
133 % 10 = 3
So 181582-00-3 is a valid CAS Registry Number.

181582-00-3Relevant articles and documents

Synthesis of pyrazine C-ribosides via direct metalation

Liu, Weimin,Walker II, John A.,Chen, Jiong J.,Wise, Dean S.,Townsend, Leroy B.

, p. 5325 - 5328 (1996)

A direct metalation method has been developed for the synthesis of novel pyrazine C-nucleosides. The regiochemistry was controlled by selecting different substituents on the pyrazine ring and excellent stereoselectivity was achieved via a hydride delivery strategy. The scope and limitations of this method were studied. The uniquely designed 4b is a versatile synthon for the preparation of other pyrazine C-nucleosides.

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