(4R,4aR,7aS)-4,7-Dimethyl-1,3,4,4a,5,7a-hexahydro-cyclopenta[c]pyran-1,3-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 76338-11-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,3,3 and 8 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 76338-11: (7*7)+(6*6)+(5*3)+(4*3)+(3*8)+(2*1)+(1*1)=139 139 % 10 = 9 So 76338-11-9 is a valid CAS Registry Number.