131189-06-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131189-06-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,8 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131189-06:
(8*1)+(7*3)+(6*1)+(5*1)+(4*8)+(3*9)+(2*0)+(1*6)=105
105 % 10 = 5
So 131189-06-5 is a valid CAS Registry Number.
131189-06-5Relevant articles and documents
The use of K-10/ultrasound in the selective synthesis of unsymmetrical β-enamino ketones
Valduga, Claudete J.,Squizani, Adriana,Braibante, Hugo S.,Braibante, Mara E.F.
, p. 1019 - 1022 (1998)
p-Phenyl substituted β-enamino ketones 2a-p and cyclic β-enamino ketones 4, 6a-f have been prepared by a selective method by dispersing 1,3- diketones and amines on montmorillonite K-10 under sonication.
