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201858-10-8

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201858-10-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 201858-10-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,5 and 8 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 201858-10:
(8*2)+(7*0)+(6*1)+(5*8)+(4*5)+(3*8)+(2*1)+(1*0)=108
108 % 10 = 8
So 201858-10-8 is a valid CAS Registry Number.

201858-10-8Relevant articles and documents

Novel heteroatom containing rubyrins

Srinivasan, Alagar,Pushpan, Simi K.,Ravikumar, Murugaeson,Chandrashekar, Tavarekere K.,Raja, Roy

, p. 6671 - 6680 (2007/10/03)

Synthesis of rubyrins containing two or three heteroatoms (O, S, Se) in the core is accomplished using modified diols and tetrapyrromethanes. Substitution of heteroatoms leads to significant reductions in HOMO-LUMO gap and easier oxidations and reductions reflecting the changes in electronic structure of the rubyrin skeleton.

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