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218897-95-1

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218897-95-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 218897-95-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,8,9 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 218897-95:
(8*2)+(7*1)+(6*8)+(5*8)+(4*9)+(3*7)+(2*9)+(1*5)=191
191 % 10 = 1
So 218897-95-1 is a valid CAS Registry Number.

218897-95-1Relevant articles and documents

Synthesis of vinca alkaloids and related compounds, LXXXVII. Reversed enantioselectivity in different approaches

Szabo, Lajos,Nagy, Tamas,Kalaus, Gyoergy,Szantay, Csaba

, p. 641 - 652 (2007/10/03)

Using the same chiral auxiliaries during the enantioselective synthesis of vincamine the absolute configuration depends on the selected approach.Starting from Wenkert enamine the natural (+)-vincamine, while using the reaction sequence through vincadiffor

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