Benzothiazolium,
3-phenyl-2-[(3-phenyl-2(3H)-benzothiazolylidene)amino]-, chloride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 66179-81-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,1,7 and 9 respectively; the second part has 2 digits, 8 and 1 respectively. Calculate Digit Verification of CAS Registry Number 66179-81: (7*6)+(6*6)+(5*1)+(4*7)+(3*9)+(2*8)+(1*1)=155 155 % 10 = 5 So 66179-81-5 is a valid CAS Registry Number.