639513-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 639513-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,9,5,1 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 639513-21:
(8*6)+(7*3)+(6*9)+(5*5)+(4*1)+(3*3)+(2*2)+(1*1)=166
166 % 10 = 6
So 639513-21-6 is a valid CAS Registry Number.
639513-21-6Relevant articles and documents
NOVEL PHTHALAMIDE DERIVATIVES
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Page 49, (2010/02/05)
Novel phthalamide derivatives of the formula (I) (I)wherein R1, R2, R3, R4, and R5 have the meanings given in the description, processes for their preparation, and their use as insecticidal agents in
