Phosphonotrithioic acid, phenyl-, diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 34309-87-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,3,0 and 9 respectively; the second part has 2 digits, 8 and 7 respectively. Calculate Digit Verification of CAS Registry Number 34309-87: (7*3)+(6*4)+(5*3)+(4*0)+(3*9)+(2*8)+(1*7)=110 110 % 10 = 0 So 34309-87-0 is a valid CAS Registry Number.