81912-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81912-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,1 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81912-40:
(7*8)+(6*1)+(5*9)+(4*1)+(3*2)+(2*4)+(1*0)=125
125 % 10 = 5
So 81912-40-5 is a valid CAS Registry Number.
81912-40-5Relevant academic research and scientific papers
USE OF CMR SPECTROSCOPY AND PHOTOCHEMICAL TRANSFORMATIONS IN STRUCTURE ASSIGNMENTS TO BICYCLO HEPT-6-EN-2-ONES
Hussain, Saadat,Schuster, David I.,El-Bayoumy, Karam
, p. 153 - 156 (2007/10/02)
Isomeric bicyclo hept-6-en-2-ones, differing in the position of substituents at Cβ and Cγ, can be distinguished by their photochemical behavior and by CMR spectroscopy.
