131979-61-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131979-61-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,7 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131979-61:
(8*1)+(7*3)+(6*1)+(5*9)+(4*7)+(3*9)+(2*6)+(1*1)=148
148 % 10 = 8
So 131979-61-8 is a valid CAS Registry Number.
131979-61-8Relevant articles and documents
Synthesis of Monodisperse Perfluoroalkyl-Oxyethylene Surfactants with Methoxy Capping: Surfactants of High Chemical Inertness
Selve, Claude,Achilefu, Samuel
, p. 911 - 912 (1990)
Monodisperse fluoroalkyl non-ionic surfactants with a methoxy group capping the hydrophilic head, and having a high chemical inertness and surface properties typical of perfluorinated non-ionic surfactants, have been synthesized.