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1606136-74-6

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1606136-74-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1606136-74-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,6,1,3 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1606136-74:
(9*1)+(8*6)+(7*0)+(6*6)+(5*1)+(4*3)+(3*6)+(2*7)+(1*4)=146
146 % 10 = 6
So 1606136-74-6 is a valid CAS Registry Number.

1606136-74-6Downstream Products

1606136-74-6Relevant articles and documents

Facile synthesis of diarylpyrazolo[1,5-a]pyrimidine from isoflavones

Yang, Junling,Zhang, Zunting,He, Qing

, p. 24 - 29 (2014/02/14)

A new facile and straightforward method for synthesis of 2-methyl-6,7-diphenyl- pyrazolo[1,5-a]pyrimidines has been described. The cyclocondensation of isoflavones with 3-amino-5-methylpyrazole in the presence of sodium methoxide gave fused 2-methyl-6,7-diphenylpyrazolo[1,5-a]pyrimidines in moderate to good yields. A series of 20 new compounds were obtained and characterized by FT-IR, NMR, and elemental analysis.

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