6-chloro-3-(3',4'-dimethoxyphenyl)coumarin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 331949-93-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,9,4 and 9 respectively; the second part has 2 digits, 9 and 3 respectively. Calculate Digit Verification of CAS Registry Number 331949-93: (8*3)+(7*3)+(6*1)+(5*9)+(4*4)+(3*9)+(2*9)+(1*3)=160 160 % 10 = 0 So 331949-93-0 is a valid CAS Registry Number.