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20411-04-5

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20411-04-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20411-04-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,1 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20411-04:
(7*2)+(6*0)+(5*4)+(4*1)+(3*1)+(2*0)+(1*4)=45
45 % 10 = 5
So 20411-04-5 is a valid CAS Registry Number.

20411-04-5Downstream Products

20411-04-5Relevant articles and documents

Saunders et al.

, p. 2873 (1968)

A highly stereoselective synthesis of (±)-dihydrofumariline-1

Hanaoka, Miyoji,Iwasaki, Masashi,Mukai, Chisato

, p. 917 - 920 (2007/10/02)

Stereoselective sodium borohydride reduction of the 8,14-cycloberbine (9) derived from the protoberberine (7), followed by reductive cleavage of C8-N bond of the resulting 13-hydroxy-8, 14-cycloberbine (10) with sodium cyanoborohydride afforded the spirobenzylisoquinoline (12), N-methylation of which via the oxazolidine (13) provided (±)-dihydrofumariline-l (1).

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