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81820-05-5

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81820-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81820-05-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,2 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81820-05:
(7*8)+(6*1)+(5*8)+(4*2)+(3*0)+(2*0)+(1*5)=115
115 % 10 = 5
So 81820-05-5 is a valid CAS Registry Number.

81820-05-5Downstream Products

81820-05-5Relevant articles and documents

Synthesis and CNS Activity of 1,5-Disubstituted -3-(4'-acetamidophenoxyacetylhydrazono)indolin-2-ones

Agarwal, Rajesh,Satsangi, R. K.,Tiwari, S. S.

, p. 1099 - 1100 (2007/10/02)

5-Substituted-indoline-2,3-diones on condensation with 4-acetamidophenoxyacetylhydrazine give 5-substituted-3-(4'-acetamidophenoxyacetylhydrazono)indolin-2-ones (I) which undergo Mannich reaction with secondary amines, to give 1,5-disubstituted-3-(4'-acet

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