1634721-84-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1634721-84-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,4,7,2 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1634721-84:
(9*1)+(8*6)+(7*3)+(6*4)+(5*7)+(4*2)+(3*1)+(2*8)+(1*4)=168
168 % 10 = 8
So 1634721-84-8 is a valid CAS Registry Number.
1634721-84-8Relevant articles and documents
Synthesis of tetrazolo[1,5-C]quinazolines VIA Ph3PAuOTf- catalyzed double hydroamination of terminal alkynes
Lakshmi, Pediredla G.V.V.,Patil, Nitin T.
, p. 2971 - 2973 (2014)
An efficient tandem process is developed by using Ph3PAuOTf- catalyzed double hydroamination of alkynes for the synthesis of new fused tetrazolo[1,5-c]quinazolines, with 2-(1 H-tetrazol-5-yl)anilines and alkynes in DCE at 100 °C.
