1198091-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1198091-49-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,8,0,9 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1198091-49:
(9*1)+(8*1)+(7*9)+(6*8)+(5*0)+(4*9)+(3*1)+(2*4)+(1*9)=184
184 % 10 = 4
So 1198091-49-4 is a valid CAS Registry Number.
1198091-49-4Relevant articles and documents
Lewis-acid-catalyzed reactions of bis(4-alkoxyphenyl)methanol with (diarylmethylene)- and (dialkylmethylene)cyclopropanes
Yao, Liang-Feng,Shi, Min
, p. 4971 - 4982 (2009)
Bis(4-methoxyphenyl)methanol (2a) can be transformed by BF 3·OEt2-catalyzed reactions of (arylmethylene) cyclopropanes 1 to the corresponding polysubstituted cyclopentenes 3 as the major products along with methylenecyclobutanes and