1078739-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1078739-21-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,7,8,7,3 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1078739-21:
(9*1)+(8*0)+(7*7)+(6*8)+(5*7)+(4*3)+(3*9)+(2*2)+(1*1)=185
185 % 10 = 5
So 1078739-21-5 is a valid CAS Registry Number.
1078739-21-5Relevant articles and documents
Efficient synthesis of 1-sulfonyl-1,2,3-triazoles
Raushel, Jessica,Fokin, Valery V.
, p. 4952 - 4955 (2010)
An efficient room-temperature method for the synthesis of 1-sulfonyl-1,2,3-triazoles from in situ generated copper(I) acetylides and sulfonyl azides is described. The copper(I) thiophene-2-carboxylate (CuTC) catalyst produces the title compounds under both nonbasic anhydrous and aqueous conditions in good yields.