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4-Chloro-1,3,5,7-tetraphenyl-2,6-dithia-1,3,5,7-tetraaza-4λ5-phospha-spiro[3.3]heptane 2,2,6,6-tetraoxide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21465-20-3

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21465-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21465-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,6 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21465-20:
(7*2)+(6*1)+(5*4)+(4*6)+(3*5)+(2*2)+(1*0)=83
83 % 10 = 3
So 21465-20-3 is a valid CAS Registry Number.

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