857934-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857934-89-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,9,3 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 857934-89:
(8*8)+(7*5)+(6*7)+(5*9)+(4*3)+(3*4)+(2*8)+(1*9)=235
235 % 10 = 5
So 857934-89-5 is a valid CAS Registry Number.
857934-89-5Relevant articles and documents
Use of in situ isopropoxide protection in the metal-halogen exchange of arylboronates
Jiang, Qin,Ryan, Meagan,Zhichkin, Paul
, p. 6618 - 6620 (2008/02/10)
(Chemical Equation Presented) Isopropoxide protection of arylboronates allowed their use in metal-halogen exchange reactions. The isopropoxide- protected borate species were obtained from a boronate or in situ from dibromoarenes. meta- and para-dibromoare
