183172-54-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183172-54-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,1,7 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 183172-54:
(8*1)+(7*8)+(6*3)+(5*1)+(4*7)+(3*2)+(2*5)+(1*4)=135
135 % 10 = 5
So 183172-54-5 is a valid CAS Registry Number.
183172-54-5Relevant academic research and scientific papers
Liu, Ben Y.,Brueckner, Christian,Dolphin, David
, p. 2141 - 2142 (1996)
Condensation of a tetraalkyl-α,α-dipyrromethane dialdehyde in a MacDonald-type [2+2]-condensation with a trialkyl-α,β-dipyrromethane gives a heptaalkyl N-confused porphyrin.
