118535-02-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118535-02-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,5,3 and 5 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 118535-02:
(8*1)+(7*1)+(6*8)+(5*5)+(4*3)+(3*5)+(2*0)+(1*2)=117
117 % 10 = 7
So 118535-02-7 is a valid CAS Registry Number.
118535-02-7Relevant articles and documents
A PHOSPHORANE MEDIATED SYNTHESIS OF TETRONIC, THIOTETRONIC AND TETRAMIC LACTONES
Brennan, John,Murphy, Patrick J.
, p. 2063 - 2066 (2007/10/02)
Intramolecular reaction of stabilised γ-acylphosphonium ylides derived from esters, thiolesters and amides with γ-lactone carbonyl groups resulted in the formation, by a Wittig-type cyclisation, of tetronic, thiotetronic and tetramic γ-lactones respectively.
