21159-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21159-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,5 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21159-73:
(7*2)+(6*1)+(5*1)+(4*5)+(3*9)+(2*7)+(1*3)=89
89 % 10 = 9
So 21159-73-9 is a valid CAS Registry Number.
21159-73-9Relevant articles and documents
EVIDENCE FOR ANTI-BOND MIGRATION IN THE PHOTOREARRANGEMENT OF 2-D-EXOBENZONORBORNENYL-2-CHLORIDE
Morrison, Harry,Cardenas, Lourdes M.
, p. 2527 - 2530 (1984)
Photolysis of the title compund to exo-2-benzonorbornenyl methyl ether proceeds with scrambling of the deuterium between C1 and C2, indicative of migration of the anti aryl group.