4-BroMo-2,3-diMethylthiophene, .2 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 30153-46-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,1,5 and 3 respectively; the second part has 2 digits, 4 and 6 respectively. Calculate Digit Verification of CAS Registry Number 30153-46: (7*3)+(6*0)+(5*1)+(4*5)+(3*3)+(2*4)+(1*6)=69 69 % 10 = 9 So 30153-46-9 is a valid CAS Registry Number.