4H,8H-1,3-Dioxolo[4,5-e][1,3,2]dioxaphosphepin,
6-chlorodihydro-2,2-dimethyl-4,4,8,8-tetraphenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 921929-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,1,9,2 and 9 respectively; the second part has 2 digits, 3 and 9 respectively. Calculate Digit Verification of CAS Registry Number 921929-39: (8*9)+(7*2)+(6*1)+(5*9)+(4*2)+(3*9)+(2*3)+(1*9)=187 187 % 10 = 7 So 921929-39-7 is a valid CAS Registry Number.