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(1S,7S)-4-chloro-9,9-dimethyl-2,2,6,6-tetrakis(3,5-dimethylphenyl)-3,5,8,10-tetraoxa-4-phosphabicyclo[5.3.0]decane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

840505-84-2

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840505-84-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 840505-84-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,0,5,0 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 840505-84:
(8*8)+(7*4)+(6*0)+(5*5)+(4*0)+(3*5)+(2*8)+(1*4)=152
152 % 10 = 2
So 840505-84-2 is a valid CAS Registry Number.

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