84993-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84993-49-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,9 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 84993-49:
(7*8)+(6*4)+(5*9)+(4*9)+(3*3)+(2*4)+(1*9)=187
187 % 10 = 7
So 84993-49-7 is a valid CAS Registry Number.
84993-49-7Relevant articles and documents
METHODS FOR THE HOMOLOGATION OF BENZOFURANCARBOXYLIC ACIDS USING DIANIONIC INTERMEDIATES
Buttery, Cheryl D.,Knight, David W.,Nott, Andrew P.
, p. 4127 - 4130 (1982)
Dianions (2), (5), and (10), can be derived from the corresponding benzofurancarboxylic acids using lithium diisopropylamide, and are useful intermediates for the homologation of the parent acids.
