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99265-10-8

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99265-10-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99265-10-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,6 and 5 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99265-10:
(7*9)+(6*9)+(5*2)+(4*6)+(3*5)+(2*1)+(1*0)=168
168 % 10 = 8
So 99265-10-8 is a valid CAS Registry Number.

99265-10-8Relevant articles and documents

A practical synthesis of dibenzoylmethanes

Wallet, Jean-Claude,Gaydou, Emile M.

, p. 4097 - 4103 (1996)

Dibenzoylmethanes are easily prepared in two steps starting from acetophenones, phenol and benzoyl chlorides. The phenyl benzoate is obtained by condensation of benzoyl chloride with phenol in a classical way. Stirring of the phenyl benzoate and acetophenone in DMSO with powdered sodium hydroxide during a few minutes gave the dibenzoylmethanes in yields depending on substituents on the phenyl rings.

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