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(1aS,1bR,6R,6aR)-2a,3,3,4,5a-pentachlorodecahydro-5H-2,4,6-(methanetriyl)cyclopenta[4,5]pentaleno[1,2-b]oxiren-5-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21038-31-3

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21038-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21038-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,3 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21038-31:
(7*2)+(6*1)+(5*0)+(4*3)+(3*8)+(2*3)+(1*1)=63
63 % 10 = 3
So 21038-31-3 is a valid CAS Registry Number.

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