21524-15-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21524-15-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,5,2 and 4 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21524-15:
(7*2)+(6*1)+(5*5)+(4*2)+(3*4)+(2*1)+(1*5)=72
72 % 10 = 2
So 21524-15-2 is a valid CAS Registry Number.
21524-15-2Relevant articles and documents
A single precatalyst tandem RCM-allylic oxidation sequence
Schmidt, Bernd,Krehl, Stefan
supporting information; experimental part, p. 5879 - 5881 (2011/06/23)
Ring closing metathesis of allyloxy styrenes and a subsequent Ru-catalyzed allylic oxidation can be combined to a tandem sequence that makes coumarins accessible using less active but more conveniently available first generation catalysts.
