777091-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 777091-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,7,0,9 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 777091-91:
(8*7)+(7*7)+(6*7)+(5*0)+(4*9)+(3*1)+(2*9)+(1*1)=205
205 % 10 = 5
So 777091-91-5 is a valid CAS Registry Number.
777091-91-5Relevant academic research and scientific papers
Diphenylmethyl protective group in the synthesis of 5-substituted 3-nitro-1H-1,2,4-triazoles
Tolstyakov,Tselinskii
, p. 399 - 404 (2007/10/03)
A diphenylmethyl protective group is suggested for use in the synthesis of 5-R-3-nitro-1H-1,2,4-triazoles unsubstituted at the cyclic nitrogen atom, via nucleophilic substitution of 5-bromo- and 5-methylsulfonyl groups.
