109530-78-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109530-78-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,5,3 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109530-78:
(8*1)+(7*0)+(6*9)+(5*5)+(4*3)+(3*0)+(2*7)+(1*8)=121
121 % 10 = 1
So 109530-78-1 is a valid CAS Registry Number.
109530-78-1Relevant 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).
