291296-44-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291296-44-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,2,9 and 6 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 291296-44:
(8*2)+(7*9)+(6*1)+(5*2)+(4*9)+(3*6)+(2*4)+(1*4)=161
161 % 10 = 1
So 291296-44-1 is a valid CAS Registry Number.
291296-44-1Relevant articles and documents
Self-assembly of oligomeric porphyrin rings
Haycock, Richard A.,Hunter, Christopher A.,James, David A.,Michelsen, Ulrike,Sutton, Liam R.
, p. 2435 - 2438 (2000)
(equation presented) A cobalt porphyrin equipped with two different but geometrically complementary pyridine ligands self-assembles to form an unusually stable complex with approximately 12 porphyrin monomers arranged in a macrocyclic array.
