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132590-25-1

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132590-25-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132590-25-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,5,9 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 132590-25:
(8*1)+(7*3)+(6*2)+(5*5)+(4*9)+(3*0)+(2*2)+(1*5)=111
111 % 10 = 1
So 132590-25-1 is a valid CAS Registry Number.

132590-25-1Downstream Products

132590-25-1Relevant articles and documents

DMSO and iodine mediated reaction of 4-hydroxycoumarins and aldehydes/aryl methyl ketones: Synthesis of furo[3,2-c]coumarins

Kolita, Sinki,Borah, Pallabi,Naidu, P. Seetham,Bhuyan, Pulak J.

, p. 532 - 538 (2016)

A simple and efficient method for the synthesis of highly functionalized furo[3,2-c]coumarins was developed. The reaction occurred via initial formation of biscoumarins from the reaction of 4-hydroxycoumarins and aldehydes/aryl methyl ketones in the prese

Synthesis of functionalized furo[3,2-c]coumarins via a one-pot oxidative pseudo three-component reaction in poly(ethylene glycol)

Zareai, Zeinab,Khoobi, Mehdi,Ramazani, Ali,Foroumadi, Alireza,Souldozi, Ali,?lepokura, Katarzyna,Lis, Tadeusz,Shafiee, Abbas

scheme or table, p. 6721 - 6726 (2012/08/28)

An efficient and straightforward synthesis of functionalized furo[3,2-c]coumarins via a one-pot oxidative pseudo three-component condensation of aldehydes and 4-hydroxycoumarin (2 equiv) in poly(ethylene glycol) (PEG) as solvent is described. A mixture of I2 and K2S 2O8 in the presence of Na2CO3 was used as an oxidative reagent. The structure of the furo[3,2-c]coumarins was established by X-ray single crystal structure analysis.

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