142731-79-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142731-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,7,3 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 142731-79:
(8*1)+(7*4)+(6*2)+(5*7)+(4*3)+(3*1)+(2*7)+(1*9)=121
121 % 10 = 1
So 142731-79-1 is a valid CAS Registry Number.
142731-79-1Relevant articles and documents
The Synthesis of 12-Crown-3-Ligands Carrying Ligating Side-arms
Fredriksen, Siw B.,Dale, Johannes
, p. 574 - 588 (2007/10/02)
Multi-step syntheses of 1,5,9-trioxacyclododecanes carrying methoxymethyl substituents in either one, two or all three of the ring positions 3, 7 and 11 are reported.The most successful route involves the elaboration of an appropriately substituted diol w
