682772-50-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 682772-50-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,2,7,7 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 682772-50:
(8*6)+(7*8)+(6*2)+(5*7)+(4*7)+(3*2)+(2*5)+(1*0)=195
195 % 10 = 5
So 682772-50-5 is a valid CAS Registry Number.
682772-50-5Relevant articles and documents
Synthesis of 2H-1,5-benzodioxepin and 2,5-dihydro-1,6-benzodioxocin derivatives via ring-closing metathesis reaction
Mamouni,Soukri,Lazar,Akssira,Guillaumet
, p. 2631 - 2633 (2007/10/03)
The synthesis of various 2H-1,5-benzodioxepin and 2,5-dihydro-1,6- benzodioxocin derivatives is described. The key step involves the construction of seven- and eight-membered rings via ring-closing metathesis reaction.
