674353-46-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 674353-46-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,4,3,5 and 3 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 674353-46:
(8*6)+(7*7)+(6*4)+(5*3)+(4*5)+(3*3)+(2*4)+(1*6)=179
179 % 10 = 9
So 674353-46-9 is a valid CAS Registry Number.
674353-46-9Relevant articles and documents
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.