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141956-74-3

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141956-74-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141956-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,5 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 141956-74:
(8*1)+(7*4)+(6*1)+(5*9)+(4*5)+(3*6)+(2*7)+(1*4)=143
143 % 10 = 3
So 141956-74-3 is a valid CAS Registry Number.

141956-74-3Downstream Products

141956-74-3Relevant articles and documents

Molecular Scaffolds I: Intramolecular Hydrogen Bonding in a Family of Di- and Triureas

Nowick, James S.,Powell, Noel A.,Martinez, Eduardo J.,Smith, Eric M.,Noronha, Glenn

, p. 3763 - 3765 (1992)

Di- and triurea derivatives 1 can be prepared by an iterative procedure and are found to exist in intramolecularly hydrogen bonded 10-membered ring conformations, in which substituents R1 and R2 and hydrogen bonding control the direction of the urea carbonyl groups.

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