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76849-85-9

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76849-85-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76849-85-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,8,4 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 76849-85:
(7*7)+(6*6)+(5*8)+(4*4)+(3*9)+(2*8)+(1*5)=189
189 % 10 = 9
So 76849-85-9 is a valid CAS Registry Number.

76849-85-9Relevant articles and documents

Regio- And chemoselective multiple functionalization of chloropyrazine derivatives. Application to the synthesis of coelenterazine

Mosrin, Marc,Bresser, Tomke,Knochel, Paul

supporting information; experimental part, p. 3406 - 3409 (2009/12/01)

Successive regio- and chemoselective metalations of chloropyrazines using TMPMgCl-LiCl and TMPZnCIIiCI furnish, after trapping with electrophiles, highly functionalized pyrazines in high yields. Application to a synthesis of coelenterazine, a bioluminescent natural product in jellyfish Aequorea victoria, in nine steps (9% overall yield) is reported.

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