1,4-Diphosphorinium,
2,5-bis(1,1-dimethylethyl)-1,4-dihydro-1,1,4,4-tetraphenyl-, dichloride is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 38565-20-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,5,6 and 5 respectively; the second part has 2 digits, 2 and 0 respectively. Calculate Digit Verification of CAS Registry Number 38565-20: (7*3)+(6*8)+(5*5)+(4*6)+(3*5)+(2*2)+(1*0)=137 137 % 10 = 7 So 38565-20-7 is a valid CAS Registry Number.