1400 is the turnover number.
The number of substrate molecules an enzyme can convert into product in a given amount of time when it is completely saturated with substrate is known as the turnover number of an enzyme. The majority of enzymes have physiological substrate turnover rates between 1 and 104 per second.
A high turnover catalyst (HTC) (8) should have a TON of no less than 1000 (and ideally above 10 (5)) for industrial applications in order to reduce the recovery of the active species, avoid preactivation stages and product contamination, and for financial reasons.
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