140170-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140170-53-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,1,7 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 140170-53:
(8*1)+(7*4)+(6*0)+(5*1)+(4*7)+(3*0)+(2*5)+(1*3)=82
82 % 10 = 2
So 140170-53-2 is a valid CAS Registry Number.
140170-53-2Relevant academic research and scientific papers
Synthesis and Characterization of Doubly-Strapped Porphyrins
Nagata, Toshi
, p. 385 - 391 (2007/10/02)
Synthesis of a "doubly-strapped" porphyrin is described, which has two -O(CH2)10O- straps on both sides of the porphyrin ring.This porphyrin did not form the zinc complex when treated with zinc acetate, even under forcing conditions.Such inertness toward
