140473-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140473-12-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,4,7 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 140473-12:
(8*1)+(7*4)+(6*0)+(5*4)+(4*7)+(3*3)+(2*1)+(1*2)=97
97 % 10 = 7
So 140473-12-7 is a valid CAS Registry Number.
140473-12-7Relevant articles and documents
ONE-POT SYNTHESIS OF NEW UNSYMMETRICAL β-HETEROARYL-o-DIVINYLBENZENES
Sindler-Kulyk, Marija,Stiplosek, Zdenka,Vojnovic, Dragana,Metelko, Biserka,Marinic, Zeljko
, p. 2357 - 2363 (2007/10/02)
By Wittig reaction of o-xylylenebis(triphenylphosphonium bromide) (1) with aldehydes (2) and formaldehyde in the presence of base, unsymmetrically substituted o-divinylbenzenes (3) have been prepared in one pot.
