1-methyl-2-phenylacetyl-(2ar,5ac,10bc,10cc)-2,2a,3,4,5,5a,10b,10c-octahydro-1H-chromeno[4,3,2-cd]indazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 25559-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,5 and 9 respectively; the second part has 2 digits, 4 and 0 respectively. Calculate Digit Verification of CAS Registry Number 25559-40: (7*2)+(6*5)+(5*5)+(4*5)+(3*9)+(2*4)+(1*0)=124 124 % 10 = 4 So 25559-40-4 is a valid CAS Registry Number.