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(2-methyl-benzothiazol-5-yl)-acetic acid ethyl ester is a chemical compound with the molecular formula C12H13NO2S. It is an ester derivative of 2-methylbenzothiazole-5-acetic acid, where the carboxylic acid group is esterified with ethanol. (2-methyl-benzothiazol-5-yl)-acetic acid ethyl ester is known for its potential applications in various fields, such as pharmaceuticals and agrochemicals, due to its biological activity. It is characterized by its white crystalline appearance and is typically used as an intermediate in the synthesis of more complex molecules. The compound's structure features a benzothiazole ring with a methyl group at the 2-position and an ethyl ester group attached to the 5-position of the benzothiazole, which contributes to its unique properties and reactivity.

3921-05-9

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3921-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3921-05-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,2 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 3921-05:
(6*3)+(5*9)+(4*2)+(3*1)+(2*0)+(1*5)=79
79 % 10 = 9
So 3921-05-9 is a valid CAS Registry Number.

3921-05-9Upstream product

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