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87736-69-4

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87736-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87736-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,3 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87736-69:
(7*8)+(6*7)+(5*7)+(4*3)+(3*6)+(2*6)+(1*9)=184
184 % 10 = 4
So 87736-69-4 is a valid CAS Registry Number.

87736-69-4Relevant articles and documents

α,β-Unsaturated Nitriles in Heterocyclic Synthesis: The Reaction of β-(2-Furanyl)- and β-(2-Thienyl)acrylonitrile with Active Methylene Reagents

Girgis, Nabih Saddik,Elgemeie, Galal Eldin Hamza,Nawar, Galal Abdel Moein,Elnagdi, Mohamed Hilmy

, p. 1468 - 1475 (2007/10/02)

The reactions of β-(2-furanyl)- and β-(2-thienyl)acrylonitrile with a variety of active methylene reagents are described.The investigations make several new pyran and pyranodiazole derivatives accessible.

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