(6aRS,9aRS,10aRS)-9-(1-hydroxyethyl)-4-methyl-1,2,6a,7,10,10a-hexahydrothieno<3,2-a>anthracene-3,3,6,11-tetraone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 138278-92-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,7 and 8 respectively; the second part has 2 digits, 9 and 2 respectively. Calculate Digit Verification of CAS Registry Number 138278-92: (8*1)+(7*3)+(6*8)+(5*2)+(4*7)+(3*8)+(2*9)+(1*2)=159 159 % 10 = 9 So 138278-92-9 is a valid CAS Registry Number.