116642-23-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116642-23-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,6,4 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 116642-23:
(8*1)+(7*1)+(6*6)+(5*6)+(4*4)+(3*2)+(2*2)+(1*3)=110
110 % 10 = 0
So 116642-23-0 is a valid CAS Registry Number.
116642-23-0Relevant articles and documents
THE SYNTHESIS AND OPTICAL PROPERTIES OF THE FIRST QUINONE-LINKED PORPHYRIN DIMER
Sessler, Jonathan L.,Piering, Scott
, p. 6569 - 6572 (1987)
The quinone-linked porphyrin dimer 2 was prepared by the coupling of dipyrrolic intermediates.Compound 2, as a dilute solution in toluene, shows no detectable fluorescence when irradiated at 407 nm.