165259-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 165259-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,2,5 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 165259-31:
(8*1)+(7*6)+(6*5)+(5*2)+(4*5)+(3*9)+(2*3)+(1*1)=144
144 % 10 = 4
So 165259-31-4 is a valid CAS Registry Number.
165259-31-4Relevant articles and documents
A Novel Facile Synthesis of Dihalogenoruthenium(IV) Porphyrins
Gross, Zeev,Barzilay, Claudia M.
, p. 1287 - 1288 (1995)
Dihalogenoruthenium(IV) porphyrins, versatile precursors to the unique organometallic chemistry of ruthenium porphyrins, are prepared directly from carbonylruthenium(II) porphyrins by reaction with CCl4 and CBr4 under extremely simple and mild reaction conditions.
