138571-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138571-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,7 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138571-72:
(8*1)+(7*3)+(6*8)+(5*5)+(4*7)+(3*1)+(2*7)+(1*2)=149
149 % 10 = 9
So 138571-72-9 is a valid CAS Registry Number.
138571-72-9Relevant academic research and scientific papers
On the Radical Deoxygenation of Secondary Alcohols
Weinges, Klaus,Schick, Hartmut,Zoellner, Peter
, p. 293 - 296 (2007/10/02)
The derivatives 1c - 1f were prepared from tetramethyl-(+)-catechin (1b).Their radical reduction with tri-n-butyltin hydride or tris(trimethylsilyl)silane in the presence of azobis(isobutyronitrile) as initiator led to (2R)-(-)-3',4',5,7-tetramethoxyflava
