133490-23-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133490-23-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,4,9 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 133490-23:
(8*1)+(7*3)+(6*3)+(5*4)+(4*9)+(3*0)+(2*2)+(1*3)=110
110 % 10 = 0
So 133490-23-0 is a valid CAS Registry Number.
133490-23-0Relevant articles and documents
Regioselective syntheses of polycyclic compounds by carbanion-mediated polycyclisation of olefins
Krief,Barbeaux
, p. 417 - 420 (2007/10/02)
This paper reports straightforward syntheses of 1-aryl-bicyclo-[n. 1.0]-alkanes, 1-aryl-bicyclo-[3.3.0]-alkanes and of 1-phenyl-1,4-dimethyl-cyclopentane from unsaturated benzylselenides which involve the organolithiums-mediated cyclisation of olefins and