28667-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28667-49-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,6,6 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 28667-49:
(7*2)+(6*8)+(5*6)+(4*6)+(3*7)+(2*4)+(1*9)=154
154 % 10 = 4
So 28667-49-4 is a valid CAS Registry Number.
28667-49-4Relevant articles and documents
Synthesis and reactions of 9,10-diazatetracyclo-[6.3.0.0.4,110.5.9]undecanes
Gribble, Gordon W.,Hirth, Bradford H.
, p. 719 - 726 (1996)
The tandem 1,3-dipolar cycloaddition between sydnones and 1,5-cyclooctadiene provides 9,10-diazatetracyclo[6.3.0.0.4,110.5,9]undecanes (the Weintraub reaction) in modest to good yields.
