131293-13-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131293-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,9 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131293-13:
(8*1)+(7*3)+(6*1)+(5*2)+(4*9)+(3*3)+(2*1)+(1*3)=95
95 % 10 = 5
So 131293-13-5 is a valid CAS Registry Number.
131293-13-5Relevant articles and documents
A new route for the synthesis of 1,3-diketones
Zanina, A. S.,Shergina, S. I.,Sokolov, I. E.,Myasnikova, R. N.
, p. 689 - 694 (2007/10/02)
A simple route for the synthesis of 1,3-diketones by the reaction of acetylenic ketones with amines followed by hydrolysis of the resulting aminovinylketones is siggested. - Key words: acetylenic ketones; 1,3-diketones; aminovinylketones; synthesis.