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223477-91-6

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223477-91-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 223477-91-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,4,7 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 223477-91:
(8*2)+(7*2)+(6*3)+(5*4)+(4*7)+(3*7)+(2*9)+(1*1)=136
136 % 10 = 6
So 223477-91-6 is a valid CAS Registry Number.

223477-91-6Downstream Products

223477-91-6Relevant articles and documents

Total syntheses of (±)-cryptopleurine, (±)-antofine and (±)- deoxypergularinine

Lebrun, Stephane,Couture, Axel,Deniau, Eric,Grandclaudon, Pierre

, p. 2659 - 2670 (1999)

The alkaloids (±)-cryptopleurine 1, (±)-antofine 2, and (±)- deoxypergularinine 3 were synthesized by Pictet-Spengler cyclization of the 2-arylmethylpiperidine and -pyrrolidines 4, 5 and 6 obtained by sequential N- deprotection-reduction of the parent ene

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