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139328-06-6

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139328-06-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139328-06-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,2 and 8 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139328-06:
(8*1)+(7*3)+(6*9)+(5*3)+(4*2)+(3*8)+(2*0)+(1*6)=136
136 % 10 = 6
So 139328-06-6 is a valid CAS Registry Number.

139328-06-6Downstream Products

139328-06-6Relevant articles and documents

Synthesis and Photochromism of Dibenzylviologen Coupled with 5,10,15,20-Tetraphenylporphyrin or Its Metal Complex via a Carbonyloxy Spacer

Kamogawa, Hiroyoshi,Koga, Kazuhi

, p. 301 - 303 (1992)

1,1'-Dibenzyl-4,4'-bipyridinium (viologen) coupled with 5,10,15,20-tetraphenylporphyrin or its metal complex via a carbonyloxy spacer was prepared by modification of 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin.The viologens in polar aprotic media brough

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