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219906-61-3

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219906-61-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219906-61-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,0 and 6 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 219906-61:
(8*2)+(7*1)+(6*9)+(5*9)+(4*0)+(3*6)+(2*6)+(1*1)=153
153 % 10 = 3
So 219906-61-3 is a valid CAS Registry Number.

219906-61-3Relevant articles and documents

A novel and highly regioselective approach to 5-methoxy-6-substituted-3- sulfonyl-δ-enlactams from 5-methoxy-3-sulfonyl glutarimide: Synthesis of cis-2-substituted-3-piperidinols

Tsai, Min-Ruei,Chen, Bo-Fong,Cheng, Chih-Ching,Chang, Nein-Chen

, p. 1780 - 1785 (2007/10/03)

(Chemical Equation Presented) A convenient method for the preparation of 5-methoxy-6-substituted-3-sulfonyl-δ-enlactams via regioselective nucleophilic addition to 5-methoxy-3-sulfonyl glutarimide is described. Formal syntheses of L-733,060, CP-99,994, an

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