1-Naphthacenecarboxylic acid,
2-ethyl-1,2,3,4,6,11-hexahydro-2-hydroxy-5,7-dimethoxy-6,11-dioxo-,
methyl ester, trans- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 88453-70-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,4,5 and 3 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 88453-70: (7*8)+(6*8)+(5*4)+(4*5)+(3*3)+(2*7)+(1*0)=167 167 % 10 = 7 So 88453-70-7 is a valid CAS Registry Number.