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138990-54-2

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138990-54-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138990-54-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,9 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138990-54:
(8*1)+(7*3)+(6*8)+(5*9)+(4*9)+(3*0)+(2*5)+(1*4)=172
172 % 10 = 2
So 138990-54-2 is a valid CAS Registry Number.

138990-54-2Downstream Products

138990-54-2Relevant academic research and scientific papers

SYNTHESIS OF POLYNUCLEAR HETEROCYCLES: 2-ARYLIDENE THIAZOLO(3,2-a)IMIDAZOLE RINGS FUSED TO BENZOTHIADIAZOLE AND PHENAZINE SYSTEMS

Reddy, B. Surender,Reddy, R. B.,Mouli, G. V. P. Chandra,Reddy, Y. D.

, p. 143 - 146 (2007/10/02)

2-Arylidene thiazolo(3,2-a)imidazo(4,5-b)phenazine-3(2H)-ones and 2-arylidene thiazolo(3,2-a)imidazo(4,5-e)-(2,1,3)benzothiadiazol-3(2H)-ones were prepared from the reaction of 2-mercapto imidazophenazine/2-mercapto imidazo-(2,1,3)benzothiadiazole with ch

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