D,L-(1,3/2,4,5)-1-C-acetoxymethyl-2,3-di-O-acetyl-4,5-anhydro-1,2,3,4,5-cyclohexanepentol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 109958-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,5 and 8 respectively; the second part has 2 digits, 6 and 6 respectively. Calculate Digit Verification of CAS Registry Number 109958-66: (8*1)+(7*0)+(6*9)+(5*9)+(4*5)+(3*8)+(2*6)+(1*6)=169 169 % 10 = 9 So 109958-66-9 is a valid CAS Registry Number.