108589-82-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108589-82-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,5,8 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 108589-82:
(8*1)+(7*0)+(6*8)+(5*5)+(4*8)+(3*9)+(2*8)+(1*2)=158
158 % 10 = 8
So 108589-82-8 is a valid CAS Registry Number.
108589-82-8Relevant articles and documents
Retinoids, X. - A Novel Way to 5-Ethyl-18-norretinoids
Hopf, Henning,Krause, Norbert
, p. 943 - 948 (2007/10/02)
The synthesis of 5-ethyl-18-norretinal (2) is described; the key step is the cyclization of acrolein (3) with 2-methyl-3-hexanone (4) to 2-ethyl-6,6-dimethyl-2-cyclohexen-1-one (5).
