189219-01-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189219-01-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,2,1 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 189219-01:
(8*1)+(7*8)+(6*9)+(5*2)+(4*1)+(3*9)+(2*0)+(1*1)=160
160 % 10 = 0
So 189219-01-0 is a valid CAS Registry Number.
189219-01-0Relevant articles and documents
Titanocene-catalyzed cyclocarbonylation of o-allyl aryl ketones to γ- butyrolactones
Kablaoui, Natasha M.,Hicks, Frederick A.,Buchwald, Stephen L.
, p. 4424 - 4431 (2007/10/03)
A method for the transformation of o-allyl aryl ketones to γ- butyrolactones using a catalytic amount of Cp2Ti(PMe3)2 or Cp2Ti(CO)2 iS described. This catalytic 'hetero Pauson-Khand'-type process proc
