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78220-91-4

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78220-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78220-91-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,2,2 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78220-91:
(7*7)+(6*8)+(5*2)+(4*2)+(3*0)+(2*9)+(1*1)=134
134 % 10 = 4
So 78220-91-4 is a valid CAS Registry Number.

78220-91-4Downstream Products

78220-91-4Relevant articles and documents

Synthesis of Some Biologically Active 2-Aminobenzothiazole Derivatives with Tosylamino, Phthalylaminoacyl, Aminoacyl, N-Tosyldi and Tripeptidyl Substituents at 2-Position

El-Naggar, A. M.,El-Salam, A. M. Abd,Gommaa, A. M.

, p. 1068 - 1070 (2007/10/02)

The synthesis of some 2-(N-tosyl- and N-phthalyl-aminoacyl)aminobenzothiazoles (II-XIV) is described.Coupling of N-tosyl- or N-phthalylamino acids with 2-aminobenzothiazole using dicyclohexylcarbodiimide furnishes the desired derivates (II-XIV).Hydrazinolysis of 2-(N-Pht-Gly)-(IX)- and 2-(N-Pht-Ala)-(X)-aminobenzothiazoles in ethanol affords 2-(Gly)-(XV)- and 2-(Ala)-(XVI)-aminobenzothiazoles respectively.The different 2-(N-Tos-di- and tri-peptidyl)aminobenzothiazoles (XVII-XX) have been obtained via the azide method.Compounds (V, VII, VIII, IX, XV, and XVII-XX) are found to be active against a number of microorganisms.

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