131340-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131340-19-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,3,4 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131340-19:
(8*1)+(7*3)+(6*1)+(5*3)+(4*4)+(3*0)+(2*1)+(1*9)=77
77 % 10 = 7
So 131340-19-7 is a valid CAS Registry Number.
131340-19-7Relevant articles and documents
Synthesis of 1,3-Dioxane Derivatives with Large Negative Dielectric Anisotropies
Tschierske, C.,Kresse, H.,Zaschke, H.,Demus, D.
, p. 1 - 12 (2007/10/02)
Liquid crystalline r-2-t-5-disubstituted c-5-cyano-1,3-dioxanes have been synthesized.The melting temperature of the new substances are increased in comparison to simpler 2,5-disubstituted 1,3-dioxanes, whereas the clearing temperatures are of the same or