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128398-33-4

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128398-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128398-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,9 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128398-33:
(8*1)+(7*2)+(6*8)+(5*3)+(4*9)+(3*8)+(2*3)+(1*3)=154
154 % 10 = 4
So 128398-33-4 is a valid CAS Registry Number.

128398-33-4Relevant articles and documents

SYNTHESIS OF N,N'-BIS(ARYL)-N-(2-THIAZOLIN-2-YL)THIOUREAS

Gonzalez, M. Avalos,Caballero, R. Babiano,Moreno, P. Cintas,Requejo, J.L. Jimenez,Albarran, J.C. Palacios

, p. 463 - 469 (2007/10/02)

The reaction of arylisothiocyanates with 2-chloroethylamine in pyridine led to the formation of complex N,N'-bis(aryl)-N-(2-thiazolin-2-yl)thioureas (1-3).These compounds and the mixed thioureas or ureas 8-11, show a strong chelated structure due to the presence of an intramolecular hydrogen bond.

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