134622-71-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134622-71-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,6,2 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134622-71:
(8*1)+(7*3)+(6*4)+(5*6)+(4*2)+(3*2)+(2*7)+(1*1)=112
112 % 10 = 2
So 134622-71-2 is a valid CAS Registry Number.
134622-71-2Relevant articles and documents
Synthesis of N-substituted 2-alkyl-3-amino-3-cyclopenten-1-ones
Otto,Schick
, p. 115 - 116 (1991)
Several 2-alkyl-3-amino-2-cyclopenten-1-ones are prepared in 45-92% yield from 2-alkyl-1,3-cyclopentanediones and a slight excess of an equimolar mixture of various primary and secondary amines and acetic or propionic acid in boiling toluene.
