109387-75-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109387-75-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,8 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109387-75:
(8*1)+(7*0)+(6*9)+(5*3)+(4*8)+(3*7)+(2*7)+(1*5)=149
149 % 10 = 9
So 109387-75-9 is a valid CAS Registry Number.
109387-75-9Relevant articles and documents
SELENO- AND SULPHENO-LACTONISATION REACTIONS OF 5,7-DIENOIC ACIDS
Huckstep, Michael R.,Taylor, Richard J. K.,Caton, Michael P. L.
, p. 5919 - 5922 (1986)
The seleno- and sulpheno-lactonisation reactions of 5Z,7-octadienoic acid (1) and 5Z,7E-nonadienoic acid (2) have been studied as a means of preparing functionalised lactones; δ-lactone formation occurs in all cases but whereas octadienoic acid (1) underg