340741-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 340741-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,0,7,4 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 340741-55:
(8*3)+(7*4)+(6*0)+(5*7)+(4*4)+(3*1)+(2*5)+(1*5)=121
121 % 10 = 1
So 340741-55-1 is a valid CAS Registry Number.
340741-55-1Relevant articles and documents
Methylium ions with OPV chains - New NIR dyes
Meier, Herbert,Kim, Soungkyoo
, p. 1163 - 1167 (2007/10/03)
Carbinols, which contain three OPV chains, were generated in convergent syntheses. The extension of the conjugation leads to a bathochromic effect that shifts the absorption from the UV into the visible region. The carbinol series has a convergence limit