4,8-Etheno-1H-furo[3,4-f]isoindole-1,3,5,7(6H)-tetrone,
3a,4,4a,7a,8,8a-hexahydro-6-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 64856-71-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,5 and 6 respectively; the second part has 2 digits, 7 and 1 respectively. Calculate Digit Verification of CAS Registry Number 64856-71: (7*6)+(6*4)+(5*8)+(4*5)+(3*6)+(2*7)+(1*1)=159 159 % 10 = 9 So 64856-71-9 is a valid CAS Registry Number.