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1529781-56-3

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1529781-56-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1529781-56-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,2,9,7,8 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1529781-56:
(9*1)+(8*5)+(7*2)+(6*9)+(5*7)+(4*8)+(3*1)+(2*5)+(1*6)=203
203 % 10 = 3
So 1529781-56-3 is a valid CAS Registry Number.

1529781-56-3Downstream Products

1529781-56-3Relevant articles and documents

A green method for synthesis of 7H-thiazolo[3,2-b][1,2,4]triazin-7-one derivatives catalyzed by N-methylpyrrolidone hydrosulfate ([Hnmp]HSO 4) ionic liquid

Liu, Sijie,Shi, Lanxiang,He, Jingyu,Yue, Hongkun,Zhou, Ran

, p. 217 - 221 (2014/03/21)

An efficient and green approach for the synthesis of 7H-thiazolo[3,2-b][1, 2,4]triazin-7-one derivatives is described via one-pot, three-component condensation of arylpyruvic acids, thiosemicarbazide, and 2-bromoacetophenones in the presence of N-methylpyrrolidone hydrosulfate ([Hnmp]HSO4) ionic liquid as the catalyst and solvent. This green catalyst can be recycled several times without any substantial decrease in the yields and reaction rates. The catalyst loadings are high. Graphical abstract: [Figure not available: see fulltext.]

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