Benzenesulfonic acid, 2,4-dimethyl-, potassium salt is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 68978-26-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,9,7 and 8 respectively; the second part has 2 digits, 2 and 6 respectively. Calculate Digit Verification of CAS Registry Number 68978-26: (7*6)+(6*8)+(5*9)+(4*7)+(3*8)+(2*2)+(1*6)=197 197 % 10 = 7 So 68978-26-7 is a valid CAS Registry Number.