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861207-74-1

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861207-74-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 861207-74-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,2,0 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 861207-74:
(8*8)+(7*6)+(6*1)+(5*2)+(4*0)+(3*7)+(2*7)+(1*4)=161
161 % 10 = 1
So 861207-74-1 is a valid CAS Registry Number.

861207-74-1Relevant articles and documents

Modifications to the Vilsmeier-Haack formylation of 1,4-dimethylcarbazole and its application to the synthesis of ellipticines

Deane, Fiona M.,Miller, Charlotte M.,Maguire, Anita R.,McCarthy, Florence O.

experimental part, p. 814 - 823 (2011/10/04)

Figure represented. An improved method for the preparation of 3-formyl-1,4-dimethylcarbazole, a key intermediate in the synthesis of ellipticine, is presented. Conditions of the Vilsmeier-Haack reaction have been modified to facilitate the production of 3-formyl-1,4-dimethylcarbazole as a major product leading to an overall improvement in yield of ellipticine from 3% to 14%. This approach was also applied to the synthesis of 6-methylellipticine and 9-methoxyellipticine.

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