128243-55-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128243-55-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,4 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128243-55:
(8*1)+(7*2)+(6*8)+(5*2)+(4*4)+(3*3)+(2*5)+(1*5)=120
120 % 10 = 0
So 128243-55-0 is a valid CAS Registry Number.
128243-55-0Relevant articles and documents
Studies on Isocyanides. Synthesis of N-Substituted 2-Isocyanocarboxamides
Bossio, Ricardo,Marcaccini, Stefano,Pepino, Roberto
, p. 935 - 937 (2007/10/02)
The Ugi four-component condensation between isocyanides, aldehydes, and ammonium formate affords N-substituted 2-formylaminocarboxamides 1 which are dehydrated with POCl3/NEt3 to give the title compounds.
