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249646-17-1

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249646-17-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 249646-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,9,6,4 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 249646-17:
(8*2)+(7*4)+(6*9)+(5*6)+(4*4)+(3*6)+(2*1)+(1*7)=171
171 % 10 = 1
So 249646-17-1 is a valid CAS Registry Number.

249646-17-1Downstream Products

249646-17-1Relevant articles and documents

Synthesis of 1H-1,2,4-triazolo[5,1-a]isoindoles by intramolecular condensation of 4-substituted 1,2,4-triazol-1-IUM 4-substituted benzoyl 2,4,6-trinitrophenylmethylides

Surpateanu, Georgiana G.,Vergoten, Ge?rard,Elass, Abdelaziz,Surpateanu, Gheorghe

, p. 2213 - 2220 (2007/10/03)

The reaction of the 4-substituted 1,2,4-triazol-1-ium 4-substituted benzoyl 2,4,6-trinitrophenyhnethylides (5) with piperidine gave the 1H-1,2,4- triazolo[5,1-a]isoindoles (7) by a cyclization and then elimination of nitrous acid.

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