71844-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71844-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,4 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71844-81:
(7*7)+(6*1)+(5*8)+(4*4)+(3*4)+(2*8)+(1*1)=140
140 % 10 = 0
So 71844-81-0 is a valid CAS Registry Number.
71844-81-0Relevant articles and documents
Synthesis and characterization of dimeric zirconium(III) complexes. Structure of "zirconocene"
Gell, Kerrie I.,Harris, Thomas V.,Schwartz, Jeffrey
, p. 481 - 488 (1981)
Dimeric Zr(III) complexes have been prepared by thermolysis of (η5-C5H5)2Zr II-bis(phosphine) compounds. These dimeric Zr(III) complexes can also be prepared by treating "zirconocene" with phosphines.