1312757-63-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1312757-63-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,2,7,5 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1312757-63:
(9*1)+(8*3)+(7*1)+(6*2)+(5*7)+(4*5)+(3*7)+(2*6)+(1*3)=143
143 % 10 = 3
So 1312757-63-3 is a valid CAS Registry Number.
1312757-63-3Relevant articles and documents
Naphthiporphyrins
Lash, Timothy D.,Young, Alexandra M.,Rasmussen, Jane M.,Ferrence, Gregory M.
, p. 5636 - 5651 (2011)
Benziporphyrins, cross-conjugated porphyrin analogues with a benzene ring in place of one of the usual pyrrole units, have varying degr es of macrocyclic aromaticity because the 6? electron arene needs to give up its aromatic characteristics to facilitate
