(1S,4S,5S,8S,9S,12S)-4,7,8,9,11,12-hexahydro-1,4:5,8:9,12-trimethanotriphenylene-2,6,10(1H,3H,5H)-trione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 1040140-89-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,1,4 and 0 respectively; the second part has 2 digits, 8 and 9 respectively. Calculate Digit Verification of CAS Registry Number 1040140-89: (9*1)+(8*0)+(7*4)+(6*0)+(5*1)+(4*4)+(3*0)+(2*8)+(1*9)=83 83 % 10 = 3 So 1040140-89-3 is a valid CAS Registry Number.