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90303-18-7

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90303-18-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90303-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,0 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 90303-18:
(7*9)+(6*0)+(5*3)+(4*0)+(3*3)+(2*1)+(1*8)=97
97 % 10 = 7
So 90303-18-7 is a valid CAS Registry Number.

90303-18-7Downstream Products

90303-18-7Relevant articles and documents

SYNTHESIS AND BIOLOGICAL ACTIVITY OF SOME NEW 4-(AMINOACYL)AMINOPYRIDINES AND 2-(AMINOACYL)AMINOPYRIMIDINE DERIVATIVES

El-Naggar, A. M.,Ahmed, F. S. M.,El-Salam, A. M. Abd,Latif, M. S. A.,El-Bary, H. M. Abd

, p. 1279 - 1285 (2007/10/02)

The synthesis of 4-(N-Tos and N-Pht-aminoacyl)aminopyridines and 2-(N-Tos and N-Pht-aminoacyl)aminopyrimidines has been achieved employing the acid chloride and carbodiimide methods.Hydrazinolysis of 4-(N-Pht-Gly or β-Ala)aminopyridines or 2-(N-Pht-L-Phe

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