1307273-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1307273-49-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,2,7 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1307273-49:
(9*1)+(8*3)+(7*0)+(6*7)+(5*2)+(4*7)+(3*3)+(2*4)+(1*9)=139
139 % 10 = 9
So 1307273-49-9 is a valid CAS Registry Number.
1307273-49-9Relevant academic research and scientific papers
An efficient convergent access to spiroketal segment of (+)-spiroxaline methyl ether
Singh, Mandeep,Argade, Narshinha P.
, p. 1137 - 1141 (2011/06/19)
Starting from trimethylsilylacetylene, a facile synthesis of optically pure spiroketal unit of (+)-spiroxaline methyl ether has been described. The synthesis entails stepwise alkylation and acylation of an alkyne with two different readily available chira
