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4-isopropylidene-1,1-dimethyl-7-phenyl-1,11b-dihydro-[1,3]oxazino[4,3-a]phthalazin-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

26641-30-5

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26641-30-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26641-30-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,6,4 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 26641-30:
(7*2)+(6*6)+(5*6)+(4*4)+(3*1)+(2*3)+(1*0)=105
105 % 10 = 5
So 26641-30-5 is a valid CAS Registry Number.

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