146966-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 146966-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,9,6 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 146966-55:
(8*1)+(7*4)+(6*6)+(5*9)+(4*6)+(3*6)+(2*5)+(1*5)=174
174 % 10 = 4
So 146966-55-4 is a valid CAS Registry Number.
146966-55-4Relevant articles and documents
Synthesis and Metastable Structure of New Photochromic Spiroindolinobenzothiopyrans
Hirano, Masafumi,Miyashita, Akira,Nohira, Hiroyuki
, p. 209 - 212 (2007/10/02)
Photochromic spiroindolinobenzothiopyrans having a methacryloxymethyl group have been prepared and their colored forms were demonstrated to be a zwitterionic structure on the basis of the spectroscopic data.