28083-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28083-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,8 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 28083-98:
(7*2)+(6*8)+(5*0)+(4*8)+(3*3)+(2*9)+(1*8)=129
129 % 10 = 9
So 28083-98-9 is a valid CAS Registry Number.
28083-98-9Relevant articles and documents
Regioselective Synthesis of Indazole N1- and N 2-(β-D-Ribonucleosides)
Seela, Frank,Peng, Xiaohua
, p. 227 - 237 (2007/10/03)
The regioselective synthesis of 4-nitroindazole N1- and N 2-(β-D-ribonucleosides) (8, 9, 1b and 2b) is described. The N1-regioisomers are formed under thermodynamic control of the glycosylation reaction [fusion reaction or
