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131986-03-3

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131986-03-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131986-03-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,8 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131986-03:
(8*1)+(7*3)+(6*1)+(5*9)+(4*8)+(3*6)+(2*0)+(1*3)=133
133 % 10 = 3
So 131986-03-3 is a valid CAS Registry Number.

131986-03-3Downstream Products

131986-03-3Relevant articles and documents

Heterocyclic X-azolopyridine Intermediates

Viscardi, Guido,Savarino, Piero,Barni, Ermanno,Carpignano, Rosarina

, p. 1825 - 1829 (2007/10/02)

A series of heterocyclic coupling agents having tuned hydrophobic chains, has been prepared by reaction of diamino or hydroxy-aminopyridines and p-aminosalicylic acid.The acetylation of amino group and hydroxyl in oxazole derivatives showed a selectivity depending on wether acetic anhydride or acetyl chloride was used.Correlations between structure and spectroscopic data, including related compounds previously described, are reported.

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