859133-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 859133-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,1,3 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 859133-99:
(8*8)+(7*5)+(6*9)+(5*1)+(4*3)+(3*3)+(2*9)+(1*9)=206
206 % 10 = 6
So 859133-99-6 is a valid CAS Registry Number.
859133-99-6Relevant articles and documents
Chemistry of 3-hetarylcoumarins 3*. Synthesis and aminomethylation of 7'-hydroxy-3, 4'- bicoumarins
Frasinyuk,Bondarenko,Khilya
, p. 422 - 426 (2012/10/29)
An improved procedure for the synthesis of 7?-hydroxy-3, 4?-bicoumarins has been developed. Their 8?-aminomethyl derivatives were obtained by interaction with aminals.
