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111509-47-8

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111509-47-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111509-47-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,5,0 and 9 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 111509-47:
(8*1)+(7*1)+(6*1)+(5*5)+(4*0)+(3*9)+(2*4)+(1*7)=88
88 % 10 = 8
So 111509-47-8 is a valid CAS Registry Number.

111509-47-8Relevant 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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