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3',4-Dichlor-2,2',3,4',5,5',6-heptamethyl-diphenylmethan is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21892-47-7

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21892-47-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21892-47-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,9 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 21892-47:
(7*2)+(6*1)+(5*8)+(4*9)+(3*2)+(2*4)+(1*7)=117
117 % 10 = 7
So 21892-47-7 is a valid CAS Registry Number.

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