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1260230-04-3

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1260230-04-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1260230-04-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,0,2,3 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1260230-04:
(9*1)+(8*2)+(7*6)+(6*0)+(5*2)+(4*3)+(3*0)+(2*0)+(1*4)=93
93 % 10 = 3
So 1260230-04-3 is a valid CAS Registry Number.

1260230-04-3Relevant articles and documents

Study of direction of cyclization of 1-azolil-4-aryl/alkyl- thiosemicarbazides

Siwek, Agata,Wujec, Monika,Dobosz, Maria,Wawrzycka-Gorczyca, Irena

experimental part, p. 521 - 532 (2011/08/03)

On a four series of 1-azolil-4-aryl/alkyl-thiosemicabazides, a study on the influence of azole moiety on the capability for intramolecular cyclization and its direction was carried out. It was found that for 4-aryl/alkyl- thiosemicabazides with triazole, imidazole, or pyrrole moiety at N-1 nitrogen atom possible products were only s-triazoles, both in alkaline and acidic medium. Successful dehydrocyclization of 1-azolil-4-aryl/alkyl- thiosemicarbazides leading to a thiadiazole has been documented only for a series of 1-(4-methyl-1,2,3-thiadiazol-5-yl-carbonyl)-4-aryl/alkyl- thiosemicarbazides. It can be speculative that the determination of pK a value of oxygen atom of 1-azolil-4-aryl/alkyl-thiosemicarbazide can be a very valuable parameter in the prediction of the possibility of dehydrocyclization to form thiadiazole.

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