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(4-Chloro-3-p-tolylsulfanyl-but-1-ynyl)-trimethyl-silane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

70819-20-4

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70819-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70819-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,8,1 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 70819-20:
(7*7)+(6*0)+(5*8)+(4*1)+(3*9)+(2*2)+(1*0)=124
124 % 10 = 4
So 70819-20-4 is a valid CAS Registry Number.

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