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(C6H5)2PC2H4P(C6H5)2CH2C6H5(1+)*BF4(1-)=((C6H5)2PC2H4P(C6H5)2CH2C6H5)BF4 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

71243-21-5

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71243-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71243-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,4 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71243-21:
(7*7)+(6*1)+(5*2)+(4*4)+(3*3)+(2*2)+(1*1)=95
95 % 10 = 5
So 71243-21-5 is a valid CAS Registry Number.

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