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181634-58-2

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181634-58-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181634-58-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,6,3 and 4 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 181634-58:
(8*1)+(7*8)+(6*1)+(5*6)+(4*3)+(3*4)+(2*5)+(1*8)=142
142 % 10 = 2
So 181634-58-2 is a valid CAS Registry Number.

181634-58-2Relevant articles and documents

Total synthesis of benzo[c]phenanthridine alkaloids, chelerythrine and 12-methoxydihydrochelerythrine, by a palladium-assisted internal biaryl coupling reaction

Harayama,Akiyama,Akamatsu,Kawano,Abe,Takeuchi

, p. 444 - 450 (2001)

A covenient and versatile synthesis of benzo[c]phenanthridine alkaloids, chelerythrine (1) and 12-methoxydihydrochelerythrine (5), was accomplished via an internal aryl-aryl coupling reaction of haloamides 8 and 9 by a palladium-assisted cyclization reaction.

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