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4-Ethyl-3-methyl-benzoic acid is an organic compound with the chemical formula C11H12O2. It is a derivative of benzoic acid, featuring a methyl group at the 3rd carbon and an ethyl group at the 4th carbon position on the benzene ring. This white crystalline solid is characterized by its melting point of 208-210°C and is soluble in organic solvents such as ethanol and acetone. The compound is synthesized through various chemical reactions and is used in the pharmaceutical and chemical industries for the production of pharmaceuticals, dyes, and other organic compounds. It is also known for its potential applications in the synthesis of certain drugs and as an intermediate in the preparation of various chemical products.

6521-13-7

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6521-13-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6521-13-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,2 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6521-13:
(6*6)+(5*5)+(4*2)+(3*1)+(2*1)+(1*3)=77
77 % 10 = 7
So 6521-13-7 is a valid CAS Registry Number.
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