(4S,11aS)-4-(3,4,5-Trimethoxy-phenyl)-1,4,7,8,11,11a-hexahydro-2,6,9-trioxa-3a-aza-cyclopenta[b]anthracen-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 128049-97-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,0,4 and 9 respectively; the second part has 2 digits, 9 and 7 respectively. Calculate Digit Verification of CAS Registry Number 128049-97: (8*1)+(7*2)+(6*8)+(5*0)+(4*4)+(3*9)+(2*9)+(1*7)=138 138 % 10 = 8 So 128049-97-8 is a valid CAS Registry Number.