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300767-59-3

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300767-59-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 300767-59-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,0,7,6 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 300767-59:
(8*3)+(7*0)+(6*0)+(5*7)+(4*6)+(3*7)+(2*5)+(1*9)=123
123 % 10 = 3
So 300767-59-3 is a valid CAS Registry Number.

300767-59-3Relevant articles and documents

The effect of phenyl substituents on the release rates of esterase-sensitive coumarin-based prodrugs

Liao,Hendrata,Sung Yong Bae,Wang

, p. 1138 - 1147 (2007/10/03)

A coumarin-based prodrug system has been recently developed in our laboratory for the preparation of esterase-sensitive prodrugs of amines, peptides, and peptidomimetics. The drug release rates from this prodrug system were found to be dependent on the structural features of the drug moiety. In certain cases, the release can be undesirably slow for drugs that are secondary amines with relatively high pK(a)'s. Aimed at finding ways to manipulate the release rates to suit the need of different drugs, we have examined the effect of the phenyl ring substitutions on the release kinetics of such prodrugs and found that appropriately positioned alkyl substituents on the phenyl ring could help to facilitate the release by as much as 16-fold. Therefore, introduction of alkyl substituents on the phenyl ring should allow us to manipulate the release rates and, therefore, time profiles for different drugs.

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