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2-[(4-chloro-phenylazo)-(toluene-4-sulfonyl)-methylene]-3-methyl-2,3-dihydro-benzothiazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

19949-97-4

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19949-97-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19949-97-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,4 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 19949-97:
(7*1)+(6*9)+(5*9)+(4*4)+(3*9)+(2*9)+(1*7)=174
174 % 10 = 4
So 19949-97-4 is a valid CAS Registry Number.

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