###### Abstract  
Background:The infinite shear viscosity model of Carreau fluid characterizes the attitude of fluid flow at a very high/very low shear rate. This model has the capacity for interpretation of fluid at both extreme levels, and an inclined magnetic dipole in fluid mechanics has its valuable applications such as magnetic drug engineering, cold treatments to destroy tumors, drug targeting, bio preservation, cryosurgery, astrophysics, reaction kinetics, geophysics, machinery efficiency, sensors, material selection and cosmology. **Novelty:** This study investigates and interprets the infinite shear rate of Carreau nanofluid over the geometry of a cylindrical channel. The velocity is assumed to be investigated through imposing an inclined magnetic field onto cylindrical geometry. Activation energy is utilized because it helps with chemical reactions and mass transport. Furthermore, the effects of thermophoresis, the binary chemical process and the Brownian movement of nanoparticles are included in this attempt. **Formulation:** The mathematics of the assumed Carreau model is derived from Cauchy stress tensor, and partial differential equations (PDEs) are obtained. Similarity transformation variables converted these PDEs into a system of ordinary differential equations (ODEs). Passing this system under the bvp4c scheme, we reached at numerical results of this research attempt. **Findings:** Graphical debate and statistical analysis are launched on the basis of the obtained computed numerical results. The infinite shear rate aspect of Carreau nanofluid gives a lower velocity. The inclined magnetic dipole effect shows a lower velocity but high energy. A positive variation in activation energy amplifies the concentration field. Keywords:infinite shear rate; Carreau nanofluid; cylindrical channel; activation energy; inclined magnetic dipole effect +
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fiberglass manufacturing, bio preservation, material selection and cosmology. By placing a magnetic field over a flowing fluid, the Lorentz force is generated by the interaction of intermutual particles. Such important key and vital applications have induced researchers to put their focus into MHD. MHD flow with different fluidics models [1; 2; 3; 4; 5; 6; 7] has been encountered along with multiple features such as Carreau diffusion, activation energy, thermophoresis, inclined magnetic field, convection transportation of energy, etc., by different scholars. [PERSON] et al. [1] studied the impact of convective boundary conditions on Carreau nanofluid moving while subjected to a stretching/shrinking cylinder and noticed that the velocity profile diminishes owing to a magnification in the magnetic parameter. [PERSON] et al. [2] employed a Keller box scheme to achieve the numerical solution of a magneto- Cross nanofluid accompanied by blood as a base fluid and found that electrically conducting fluid generates a force termed the Lorentz force, which is responsible for a decrement in the fluid's velocity. [PERSON] et al. [3] achieved the analytical solution of MHD fluid flow between two coaxial cylinders and came up with the conclusion that the velocity of fluid diminishes owing to a magnification in Grashoff number. [PERSON] et al. [4] employed MATLAB built in a bvp4c scheme to achieve the numerical solution of a magneto hybrid nanofluid flow between two coaxial cylinders and noticed that a positive change in magnetic field strength diminishes the performance of hybrid nanofluids. [PERSON] et al. [5] scrutinized the influence of an inclined magnetic field on a Cross nanofluid moving over a slippery surface and observed that magnification in the magnetic field parameters depreciates the velocity of the fluid flow. The impact of investigating the influence of higher-order chemical reactions and magnetic field effects on Cross nanofluid movement subjected to a stretching wedge was scrutinized in detail by [PERSON] et al. [6].