89723-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89723-05-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,2 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89723-05:
(7*8)+(6*9)+(5*7)+(4*2)+(3*3)+(2*0)+(1*5)=167
167 % 10 = 7
So 89723-05-7 is a valid CAS Registry Number.
89723-05-7Relevant articles and documents
THE 1,3-BENZOTELLURAZOLE : A NEW HETEROCYCLIC SYSTEM
Mbuyi, Musangu,Evers, Michel,Tihange, Guy,Luxen, Andre,Christiaens, Leon
, p. 5873 - 5876 (2007/10/02)
We describe the synthesis of a new heterocyclic system : the 1,3-benzotellurazole, and some of its substituted derivatives.