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1026848-11-2

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1026848-11-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1026848-11-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,8,4 and 8 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1026848-11:
(9*1)+(8*0)+(7*2)+(6*6)+(5*8)+(4*4)+(3*8)+(2*1)+(1*1)=142
142 % 10 = 2
So 1026848-11-2 is a valid CAS Registry Number.

1026848-11-2Downstream Products

1026848-11-2Relevant articles and documents

Microwave-assisted solution-phase synthesis of 1,4,5-trisubstituted pyrazoles

Giacomelli, Giampaolo,Porcheddu, Andrea,Salaris, Margherita,Taddei, Maurizio

, p. 537 - 541 (2007/10/03)

A small parallel library of 1,4,5-trisubstituted pyrazoles was prepared in solution using a three-step procedure starting from Meldrum acid. The Meldrum acid was acylated with different acyl chlorides and the products opened with different alcohols and amines to give substituted β-keto esters and β-keto amines. Further reaction with N,N-dimethylformamide dimethylacetal and the final cyclisation were effectively carried out under microwave irradiation. Scavenger resins were employed exclusively in the first step, whereas use of microwaves allowed complete conversion of the starting materials in the other two steps. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.

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