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1,16-Bis-(2,5-bis-(methylamino)-p-benzochinonyl-(3))-hexadecan is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21772-26-9

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21772-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21772-26-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,7 and 2 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21772-26:
(7*2)+(6*1)+(5*7)+(4*7)+(3*2)+(2*2)+(1*6)=99
99 % 10 = 9
So 21772-26-9 is a valid CAS Registry Number.

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