211762-04-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211762-04-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,7,6 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 211762-04:
(8*2)+(7*1)+(6*1)+(5*7)+(4*6)+(3*2)+(2*0)+(1*4)=98
98 % 10 = 8
So 211762-04-8 is a valid CAS Registry Number.
211762-04-8Relevant articles and documents
Orthoamide, LXI [1]. A new, efficient procedure for the synthesis of orthoamide derivatives of alkyne carboxylic acids
Kantlehner, Willi,Kre?, Ralf,Mezger, Jochen,Ladendorf, Sebastian
, p. 227 - 230 (2005)
Tris(dimethylamino)ethoxy-methane (3) reacts with 1-alkynes 7a-h to give orthoamides of alkyne carboxylic acids 4a-h.