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2-oxo-7,7,7-triphenoxy-3,3-diphenyl-6-oxa-1-aza-7λ5-phospha-bicyclo[3.2.0]hept-4-ene-4-carbonitrile is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

70200-74-7

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70200-74-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70200-74-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,2,0 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70200-74:
(7*7)+(6*0)+(5*2)+(4*0)+(3*0)+(2*7)+(1*4)=77
77 % 10 = 7
So 70200-74-7 is a valid CAS Registry Number.

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