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4-(4-chloro-phenyl)-2,2'-diimino-3'-o-tolyl-2',3'-dihydro-[3,4']bithiazolyl-5'-carboxylic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

23998-07-4

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23998-07-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23998-07-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,9,9 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 23998-07:
(7*2)+(6*3)+(5*9)+(4*9)+(3*8)+(2*0)+(1*7)=144
144 % 10 = 4
So 23998-07-4 is a valid CAS Registry Number.
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