10-hydroxy-1,3,9-trioxo-3b,10-diphenyl-2,3,3b,10-tetrahydro-1H-chromeno[2'',3'':3',4']cyclopenta[1',2':1,3]cyclopropa[1,2-c]pyrrole-3a-carbonitrile is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 19987-76-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,8 and 7 respectively; the second part has 2 digits, 7 and 6 respectively. Calculate Digit Verification of CAS Registry Number 19987-76: (7*1)+(6*9)+(5*9)+(4*8)+(3*7)+(2*7)+(1*6)=179 179 % 10 = 9 So 19987-76-9 is a valid CAS Registry Number.
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