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2,7-bis-(4-chloro-anilino)-1,6-dithia-3,8-diaza-spiro[4.4]nona-2,7-diene-4,9-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21352-53-4

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21352-53-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21352-53-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,5 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21352-53:
(7*2)+(6*1)+(5*3)+(4*5)+(3*2)+(2*5)+(1*3)=74
74 % 10 = 4
So 21352-53-4 is a valid CAS Registry Number.

21352-53-4Downstream Products

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