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Isothiazolo[5,4-b]pyridine, 3-bromo-6,7-dihydro-4,7-dimethyl-6-[[(4-nitrophenyl)azo]methylene]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

61889-44-9

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61889-44-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 61889-44-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,8,8 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 61889-44:
(7*6)+(6*1)+(5*8)+(4*8)+(3*9)+(2*4)+(1*4)=159
159 % 10 = 9
So 61889-44-9 is a valid CAS Registry Number.

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