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90771-66-7

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90771-66-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90771-66-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,7 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 90771-66:
(7*9)+(6*0)+(5*7)+(4*7)+(3*1)+(2*6)+(1*6)=147
147 % 10 = 7
So 90771-66-7 is a valid CAS Registry Number.

90771-66-7Relevant articles and documents

Substituted Isatoic Anhydrides: Selective Inactivators of Trypsin-like Serine Proteases

Gelb, Michael H.,Abeles, Robert H.

, p. 585 - 589 (1986)

Derivatives of isatoic anhydride were prepared and tested as inhibitors of serine proteases.A number of isatoic anhydrides with positively charged substituents irreversibly inactivated several trypsin-like enzymes and preferentially inactivated trypsin over chymotrypsin.Further selectivity was obtained by introduction of an aromatic group on the N-1 position of isatoic anhydride. 7-(Aminomethyl)-1-benzylisatoic anhydride was prepared and was a selective inactivator of thrombin; thus it is possible to prepare derivatives of isatoic anhydride that are highly enzyme selective without attaching peptide recognition structures.

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