87953-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87953-85-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,5 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 87953-85:
(7*8)+(6*7)+(5*9)+(4*5)+(3*3)+(2*8)+(1*5)=193
193 % 10 = 3
So 87953-85-3 is a valid CAS Registry Number.
87953-85-3Relevant articles and documents
5,8-Quinoflavone. Synthesis and Addition Reactions
Looker, James H.,Edman, James R.,Kingsbury, Charles A.
, p. 645 - 649 (2007/10/02)
A synthesis of 5,8-quinoflavone (3) from primetin (2) is described.An improved Elbs persulfate oxidation procedure for 2 is presented.Addition of halogens and of hydrogen chloride to 3 is described, together with chemical and spectral data establishing th
