...not always...

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The delivery of the compound on time is not always guaranteed. There are a few variables that can influence the outcome, such as departments coordination, resources allocation and other inevitable conditions.

This condition is not always suitable for this type of reaction. There are several factors that can influence the result, such as the precatalyst, solvent, base, temperature and so on.

Condition screening is not always efficient, but it can indeed solve many issues.

Experiment result is not alwaysthe same, there are some factors that can influence it, such as experiment skills, animal healthiness, environment conditions.

The projects are not always smoothly. There are a few factors affect the schedule, such as the reliability of the route,  the cost of the materials and the arrangment of the human resources.

Some literatures are not always reliable, we need to check the real result on our reactions.

This designed product is not always ensured. There are some key factors that can influence the result, such as the concentration of the reaction, the strength of the base and the way of post-treatment

Experiments are not always going smoothly, and unexpected occurrences are inevitable. What matters is the process of trouble shooting that we learn from accidents.

Process optimization is not always proceeding smoothly. We may face different kinds of problems and we need to solve them using our limited resources as soon as possible. Besides, close attention should be paid on data collection, such as yield, conversion rate, polymorph and so on which do help us avoild detours.