21083-08-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21083-08-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,8 and 3 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21083-08:
(7*2)+(6*1)+(5*0)+(4*8)+(3*3)+(2*0)+(1*8)=69
69 % 10 = 9
So 21083-08-9 is a valid CAS Registry Number.
21083-08-9Relevant articles and documents
Chemistry of Sampangines
Zjawiony, Jordan K.,Srivastava, Anita R.,Hufford, Charles D.,Clark, Alice M.
, p. 779 - 800 (2007/10/02)
The reactivity of sampangines in electrophilic and nucleophilic substitution reactions, nucleophilic addition reactions and the total synthesis of some derivatives are described.These reactions provide access to many analogs substituted in ring A-, B, C-, and D.
