The phrase "an essential requisite of" is correct and usable in written English.
It can be used when discussing something that is necessary or fundamental to a particular context or situation.
Example: "Understanding the basic principles of mathematics is an essential requisite of pursuing a degree in engineering."
Alternatives: "a necessary requirement of" or "a fundamental component of".
Chest x-ray is absolutely necessary to confirm the diagnosis of pneumonia and will therefore be an essential requisite for inclusion of the patients to thereby avoid the inclusion of patients who do not have the disease.
Further analysis on the biological role of spatacsin is an essential requisite for the better understanding of motoneuron diseases.
Moreover, gene cataloguing and profiling of the venom gland of D. acutus is an essential requisite to provide molecular reagents for functional genomic studies needed for the elucidation mechanisms of action of toxins and the discovery of their antagonists [ 10].
The knowledge of biology, mechanics, function, and esthetics of sound/intact teeth is an essential requisite to researchers seeking new restorative materials.
The photostability, fast kinetics and sensitivity of this dye are highly advantageous for recording spontaneous action potential firing of multiple neurons, an essential requisite to precisely dissect neuronal networks.
Only a "frustration" effect was clearly generated because of the limited involvement of the Municipality of Bari, thus confirming that the involvement of the relevant Authority is an essential requisite for successful participation.
Cross-talk between fetal and maternal immune cells is an essential requisite to achieve early pregnancy placental development, vasculogenesis, and immune tolerance of the fetus [ 7– 9].
Similar analyses, performed with a series of site-specific Zcal1 mutants, showed that the Shine-Dalgarno sequence, which is conferred by the pBAD vector, is an essential requisite for silencing competence.
Energy Storage Systems (ESSs) are progressively becoming an essential requisite for the upcoming Smart Distribution Systems thanks to the flexibility they introduce in the network operation.
