(3aR,3bS,7aR,8aR)-2,2,7-Trimethyl-3a,3b,7a,8a-tetrahydro-[1,3]dioxolo[4,5]furo[3,2-b]pyran-5-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 123431-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,3 and 1 respectively; the second part has 2 digits, 9 and 0 respectively. Calculate Digit Verification of CAS Registry Number 123431-90: (8*1)+(7*2)+(6*3)+(5*4)+(4*3)+(3*1)+(2*9)+(1*0)=93 93 % 10 = 3 So 123431-90-3 is a valid CAS Registry Number.