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2-bromo-3,5-di-tert-butyl-2,5-dihydro-[1,2]oxaphosphole 2-oxide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

30338-49-9

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30338-49-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 30338-49-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,3,3 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 30338-49:
(7*3)+(6*0)+(5*3)+(4*3)+(3*8)+(2*4)+(1*9)=89
89 % 10 = 9
So 30338-49-9 is a valid CAS Registry Number.

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