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Gold, dibromochloro(5-phenyl-5H-benzo[b]phosphindole)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138897-47-9

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138897-47-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138897-47-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,9 and 7 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138897-47:
(8*1)+(7*3)+(6*8)+(5*8)+(4*9)+(3*7)+(2*4)+(1*7)=189
189 % 10 = 9
So 138897-47-9 is a valid CAS Registry Number.

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