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4904-49-8

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4904-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4904-49-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,0 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4904-49:
(6*4)+(5*9)+(4*0)+(3*4)+(2*4)+(1*9)=98
98 % 10 = 8
So 4904-49-8 is a valid CAS Registry Number.

4904-49-8Relevant articles and documents

An improved synthesis of 2H-1,2,6-thiadiazine 1,1-dioxides by condensation of β-amino and β-chloro α,β-unsaturated ketones with sulfamides

Alberola,Andres,Gonzalez,Pedrosa,Vicente

, p. 355 - 356 (2007/10/02)

Symmetrically substituted β-amino α,β-unsaturated ketones react with sulfamide giving 2H-1,2,6-thiadiazine 1,1-dioxides in excellent yields. Unsymmetrically substituted β-amino and β-chloro α,β-unsaturated ketones also react with benzylsulfamide to yield

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