Cas 71221-25-5,5,10-bis-4-fluorophenyl-15,20-bis-4-methoxyphenyl-21,23-dithiaporphyrin

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Check Digit Verification of cas no

The CAS Registry Mumber 71221-25-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,2 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 71221-25:
(7*7)+(6*1)+(5*2)+(4*2)+(3*1)+(2*2)+(1*5)=85
85 % 10 = 5
So 71221-25-5 is a valid CAS Registry Number.

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71221-25-5Relevant academic research and scientific papers

Water-soluble, core-modified porphyrins as novel, longer-wavelength-absorbing sensitizers for photodynamic therapy. II. Effects of core heteroatoms and meso-substituents on biological activity

Hilmey, David G.,Abe, Masako,Nelen, Marina I.,Stilts, Corey E.,Baker, Gary A.,Baker, Sheila N.,Bright, Frank V.,Davies, Sherry R.,Gollnick, Sandra O.,Oseroff, Allan R.,Gibson, Scott L.,Hilf, Russell,Detty, Michael R.

, p. 449 - 461 (2007/10/03)

Water-soluble, core-modified porphyrins were prepared and evaluated as sensitizers for photodynamic therapy (PDT). The addition of an aromatic aldehyde to 2,5-dilithiothiophene or -selenophene gave diol 3 as a nearly equimolar mixture of meso and d,1 dias

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