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Benzo[b]thiophene, 3-ethynyl-4-methoxy- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

770745-99-8

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770745-99-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 770745-99-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,0,7,4 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 770745-99:
(8*7)+(7*7)+(6*0)+(5*7)+(4*4)+(3*5)+(2*9)+(1*9)=198
198 % 10 = 8
So 770745-99-8 is a valid CAS Registry Number.

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