167221-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 167221-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,2,2 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 167221-72:
(8*1)+(7*6)+(6*7)+(5*2)+(4*2)+(3*1)+(2*7)+(1*2)=129
129 % 10 = 9
So 167221-72-9 is a valid CAS Registry Number.
167221-72-9Relevant articles and documents
SHORT-ACTING DIHYDROPYRIDINES
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, (2008/06/13)
Compounds of the general formula wherein R1 and R2 are independently selected from the group consisting of hydrogen, chloro, bromo, nitro, cyano, trifluoromethyl, and R3 and R4 are independently selected from straight or branched lower (1-5 carbon atoms)
