(3R,3aS,6aR,7aS,8R,11aS,11bR,11cS)-5-Methoxy-3,8,11a,11c-tetramethyl-dodecahydro-6-oxa-benzo[de]anthracene-1,2,11-trione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 127897-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,8,9 and 7 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 127897-16: (8*1)+(7*2)+(6*7)+(5*8)+(4*9)+(3*7)+(2*1)+(1*6)=169 169 % 10 = 9 So 127897-16-9 is a valid CAS Registry Number.