142671-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142671-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,6,7 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 142671-81:
(8*1)+(7*4)+(6*2)+(5*6)+(4*7)+(3*1)+(2*8)+(1*1)=126
126 % 10 = 6
So 142671-81-6 is a valid CAS Registry Number.
142671-81-6Relevant articles and documents
Reactions of 1-Methyl-4-quinolone with 2-Lithio-1,3-dithianes
Griera, Rosa,Rigat, Lluis,Alvarez, Mercedes,Joule, John A.
, p. 1223 - 1228 (2007/10/02)
Nucleophiles, including lithiated 1,3-dithianes, add to 1-methyl-4-quinolone at the 2-position; in some cases initial adducts were subsequently trapped with added electrophile.
