67757-66-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67757-66-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,7,5 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 67757-66:
(7*6)+(6*7)+(5*7)+(4*5)+(3*7)+(2*6)+(1*6)=178
178 % 10 = 8
So 67757-66-8 is a valid CAS Registry Number.
67757-66-8Relevant articles and documents
Synthesis of Peri-Substituted Naphthalenes and Tetralins
Pourahmady, Naser,Vickery, Euin H.,Eisenbraun, Edmund J.
, p. 2590 - 2593 (2007/10/02)
Synthesis of 1-ethyl-8-methylnaphthalene and 1-isopropyl-8-methylnaphthalene along with several 1,2,3,4-tetrahydro derivatives is described.The difficulties encountered in the synthesis and purification of these peri-substituted hydrocarbons are discussed.