138769-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138769-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,6 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138769-69:
(8*1)+(7*3)+(6*8)+(5*7)+(4*6)+(3*9)+(2*6)+(1*9)=184
184 % 10 = 4
So 138769-69-4 is a valid CAS Registry Number.
138769-69-4Relevant academic research and scientific papers
Studies on isocyanides and related compounds. Synthesis of benzofuran derivatives
Bossio,Marcaccini,Paoli,Pepino,Polo
, p. 999 - 1000 (2007/10/02)
The reaction between 2-hydroxybenzaldehyde (1a), isocyanides 2, and ammonium formate, in the conditions of the Ugi four-component condensation, affords 2-alkylamino- and 2-arylamino-3-[(2-hydroxybenzylidene)amino]benzofurans 3a-c. Analogously by employing
