4-chloro-8-methyl-2H-chromen-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 51069-77-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,0,6 and 9 respectively; the second part has 2 digits, 7 and 7 respectively. Calculate Digit Verification of CAS Registry Number 51069-77: (7*5)+(6*1)+(5*0)+(4*6)+(3*9)+(2*7)+(1*7)=113 113 % 10 = 3 So 51069-77-3 is a valid CAS Registry Number.