1225544-93-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1225544-93-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,5,5,4 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1225544-93:
(9*1)+(8*2)+(7*2)+(6*5)+(5*5)+(4*4)+(3*4)+(2*9)+(1*3)=143
143 % 10 = 3
So 1225544-93-3 is a valid CAS Registry Number.
1225544-93-3Relevant academic research and scientific papers
Manufacturing synthesis of 5-substituted phthalides
Faigl, Ferenc,Thurner, Angelika,Molnar, Balazs,Simig, Gyula,Volk, Balazs
, p. 617 - 622 (2011/07/09)
A manufacturing synthesis of 5-chlorophthalide has been elaborated. The key step of the procedure is ortho-lithiation of 4-chloro-N,N-diisopropylbenzamide, followed by formylation with dimethyl formamide. Reduction of the formyl moiety and subsequent ring
