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51698-87-4

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51698-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51698-87-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,6,9 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 51698-87:
(7*5)+(6*1)+(5*6)+(4*9)+(3*8)+(2*8)+(1*7)=154
154 % 10 = 4
So 51698-87-4 is a valid CAS Registry Number.

51698-87-4Relevant articles and documents

Synthesis of Substituted 2-(1',3',4'-Oxadiazol-2'-yl)indoles

Sinnur, K. H.,Siddappa, S.,Hiremath, Shivayogi P.,Purohit, Muralidhar G.

, p. 716 - 720 (2007/10/02)

Substituted indole-2-carboxylic acid hydrazides (2) on refluxing with ethyl orthoformate give the respective 2-(1',3',4'-oxadiazol-2'-yl)indoles (4).These compounds have also been obtained by reacting 2 with formamide to get the corresponding N-formyl der

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