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109337-00-0

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109337-00-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109337-00-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,3,3 and 7 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109337-00:
(8*1)+(7*0)+(6*9)+(5*3)+(4*3)+(3*7)+(2*0)+(1*0)=110
110 % 10 = 0
So 109337-00-0 is a valid CAS Registry Number.

109337-00-0Relevant articles and documents

Novel one pot synthesis of 3-acetyl-5-hydroxy-2-methylbenzofuran and 3-acetyl-5-hydroxy-2-methylnaphthofuran and synthesis of their derivatives

Gadaginamath, Guru S.,Kavali, Rajesh R.,Pujar, Shashikanth R.

, p. 2285 - 2292 (2003)

The benzofurans and naphthofurans so far were obtained either by using catalyst or as side products. In the present investigation we are reporting first time the exclusive formation of only 3-acetyl-5-hydroxy-2-methylbenzofuran and 3-acetyl-5-hydroxy-2-methyl-naphthofuran in quantitative yield by adopting the Nenitzescu reaction. Further, these 5-hydroxybenzofuran and 5-hydroxy-naphthofuran were converted to their corresponding 5-methoxyl/ 5-methoxycarbonylmethoxy derivatives.

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