404392-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 404392-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,4,3,9 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 404392-72:
(8*4)+(7*0)+(6*4)+(5*3)+(4*9)+(3*2)+(2*7)+(1*2)=129
129 % 10 = 9
So 404392-72-9 is a valid CAS Registry Number.
404392-72-9Relevant articles and documents
Si-BEZA - Catalytic pyridinium triflate: A mild and powerful agent for the silylation of alcohols
Misaki,Kurihara,Tanabe
, p. 2478 - 2479 (2001)
A highly efficient method of silylation using a novel agent, Si-BEZA (silylbenzamide), together with a pyridinium triflate catalyst was developed, wherein a variety of silyl groups can be introduced into sterically crowded alcohols under mild conditions.
