189693-08-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189693-08-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,6,9 and 3 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 189693-08:
(8*1)+(7*8)+(6*9)+(5*6)+(4*9)+(3*3)+(2*0)+(1*8)=201
201 % 10 = 1
So 189693-08-1 is a valid CAS Registry Number.
189693-08-1Relevant articles and documents
Selective benzylic bromination of 2-methylnaphthalene
Waykole, Liladhar,Prashad, Mahavir,Palermo, Stephen,Repic, Oljan,Blacklock, Thomas J.
, p. 2159 - 2163 (2007/10/03)
A practical synthesis of 2-(bromomethyl)naphthalene (1) by selective benzylic bromination of 2-methylnaphthalene (2) with bromine in heptane in the presence of lanthanum acetate hydrate is described.