1,3,2-Dioxaphospholane,
2,2'-[(diphenylstannylene)bis(thio)]bis[4,4,5,5-tetramethyl-, 2,2'-disulfide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 91884-70-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,8 and 4 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 91884-70: (7*9)+(6*1)+(5*8)+(4*8)+(3*4)+(2*7)+(1*0)=167 167 % 10 = 7 So 91884-70-7 is a valid CAS Registry Number.