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177797-94-3

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177797-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177797-94-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,7,9 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 177797-94:
(8*1)+(7*7)+(6*7)+(5*7)+(4*9)+(3*7)+(2*9)+(1*4)=213
213 % 10 = 3
So 177797-94-3 is a valid CAS Registry Number.

177797-94-3Relevant articles and documents

A new catalytic cross-coupling approach for the synthesis of protected aryl and heteroaryl amidines

Kusturin, Carrie L.,Liebeskind, Lanny S.,Neumann, William L.

, p. 983 - 985 (2002)

(equation presented) A new method for the synthesis of protected benzamidines is described. The commercially available 1,3-bis(tert-butoxycarbonyl)-2-methyl-2-thiopseudourea guanidylation reagent, after SEM-protection, functions as an amidine-forming cros

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