13821-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13821-77-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,8,2 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 13821-77:
(7*1)+(6*3)+(5*8)+(4*2)+(3*1)+(2*7)+(1*7)=97
97 % 10 = 7
So 13821-77-7 is a valid CAS Registry Number.
13821-77-7Relevant articles and documents
Stabilization of mixtures of chlorination of phenol/chlorophenols
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, (2008/06/13)
Mixtures produced by chlorination of phenol/chlorophenols are effectively stabilized by stirring same in the presence of a stabilizing amount of at least one strong protonic acid and/or a Lewis acid.