143702-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143702-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,7,0 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 143702-20:
(8*1)+(7*4)+(6*3)+(5*7)+(4*0)+(3*2)+(2*2)+(1*0)=99
99 % 10 = 9
So 143702-20-9 is a valid CAS Registry Number.
143702-20-9Relevant articles and documents
A facile approach to γ,δ-unsaturated amides
Janecki
, p. 2063 - 2070 (2007/10/02)
A convenient synthesis of γ-substituted γ,δ-unsaturated amides by modified Horner-Wadsworth-Emmons reaction of γ-diethoxyphosphorylbutyric acid (1) with aldehydes is described.
