2158-08-9 Usage
General Description
N-N-octadecylurea is a chemical compound with the molecular formula C24H49NO. It is a white, waxy solid with a melting point of around 60-70°C. N-N-OCTADECYLUREA is used as a surface active agent, an emulsifier, and a dispersing agent in various industrial applications. It is most commonly found in lubricants, coatings, and plastics, where it functions as a friction modifier, anti-foaming agent, and dispersant. N-N-octadecylurea is also known for its ability to reduce the viscosity of oils and improve their flow properties, making it a valuable additive in the manufacturing of automotive and industrial lubricants.
Check Digit Verification of cas no
The CAS Registry Mumber 2158-08-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,5 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2158-08:
(6*2)+(5*1)+(4*5)+(3*8)+(2*0)+(1*8)=69
69 % 10 = 9
So 2158-08-9 is a valid CAS Registry Number.
InChI:InChI=1/C19H40N2O/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-21-19(20)22/h2-18H2,1H3,(H3,20,21,22)
2158-08-9Relevant articles and documents
First Observation of a Thermal Contraction-Type Phase Transition in A-T-Isobars of Monolayers at the Air/Water Interface with Temperature Increase
Kato, Teiji,Akiyama, Hideyuki,Yoshida, Masaaki
, p. 565 - 566 (1992)
A-T-isobars of octadecylurea monolayers were measured.This is the first direct observation that the monolayers exhibited a first-order phase transition accompanying discontinuous molecular area contraction with increasing temperature.This may be due to the "fusion" of a hydrogen bonded bulky structure of urea head groups in the monolayers at the water surface.
N-[(2,6-disubstituted)phenyl]-urea and carbamate inhibitors of acyl-CoA:cholesterol acyl-transferase
-
, (2008/06/13)
Substituted urea, thiourea, carbamate, and thiocarbamate derivatives of formula I are potent inhibitors of the enzyme acyl-CoA:cholesterol acyltransferase and are thus useful agents for inhibiting the intestinal absorption of cholesterol.
