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90870-70-5

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90870-70-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90870-70-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,8,7 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90870-70:
(7*9)+(6*0)+(5*8)+(4*7)+(3*0)+(2*7)+(1*0)=145
145 % 10 = 5
So 90870-70-5 is a valid CAS Registry Number.

90870-70-5Downstream Products

90870-70-5Relevant articles and documents

Facile synthesis of 1,2,4-triazoles via a copper-catalyzed tandem addition-oxidative cyclization

Ueda, Satoshi,Nagasawa, Hideko

supporting information; experimental part, p. 15080 - 15081 (2010/01/16)

A simple one-step synthesis of 1,2,4-triazole derivatives is provided by a copper-catalyzed oxidative coupling reaction under an atmosphere of air. The process should consist of sequential N-C and N-N bond-forming copper-catalyzed oxidative coupling reactions. Starting materials and the copper catalyst are readily available and inexpensive. A wide range of functional groups are tolerated to achieve chemical diversity.

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